-3(x+1)<15
Divide both-side of the inequality by -3
(x + 1) > -5
subtract 1 from both-side of the inequality
x > -5 - 1
x > -6
Answer:
Step-by-step explanation:
-3(x+1)<15
Divide the inequality by -3, so we need to change the sides of the less than into greater than
x+1 > -5
x > -5 - 1
x > -6
Ekua designs and sells T-shirts for $1 13 each. Ekua has to spend $280 per month, $9.50dollar per T-shirt ordered.
As Ekua has to spend $280 per month and the cost of each sheet is $9.50 / dollar. The inequality followed is T≤29.
What is inequality?It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.
For the inequality, we have to apply the arithmetic operation in which we do the multiplication of x and apply the inequality for the given data.
To ascertain the maximum or lowest values of a scenario with many restrictions, a system of linear inequalities is frequently utilized. Inequalities reflect a limit of what is permitted or achievable rather than a precise quantity.
It is given that Ekua designs and sells T-shirts for $1 13 each. Ekua has to spend $280 per month, $9.50 dollar per T-shirt ordered.
We have to find the maximum number of T-shirts she can buy,
⇒ $280 / $9.50
⇒ 29.47 ≅29
Thus, Ekua has to spend $280 per month and the cost of each sheet is $9.50 / dollar. The inequality followed is T≤29.
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Function Notation - Transformationsill send a picture of the question
Let's see how two points on the left are mapped to their corresponding points on the right:
Point A has a corresponding point at A'. We have:
f(A) = A'
f(-6, -3) = (2, 4)
Point B has a corresponding point at B'. We have:
f(B) = B'
f(-4, -1) = (4, 6)
Now, notice that:
2 = -6 + 8
4 = -3 + 7
So, for (x, y) = (-6, -3), we have:
f(x, y) = (2, 4) = (x + 8, y + 7)
Notice that the same happens to the mapping of the other point:
4 = -4 + 8
6 = -1 + 7
So, for (x, y) = (-4, -1), we have:
f(x, y) = (4, 6) = (x + 8, y + 7)
Therefore, the rule for the transformation is
f(x, y) = (x + 8, y + 7)
Janna is measuring the dimensions of her bedroom to determine how much paint she should buy for the walls. If her measuring tape has increments of 0.01 meter, which of the following could be the length of one wall with the correct number of significant digits?A)2.51 meters B)2.5 metersC)2.513 metersD)3 meters
The option that can be the length of one wall with the correct number of the significant digit is A)2.51 meters.
How to illustrate the information?From the information given, Janna is measuring the dimensions of her bedroom to determine how much paint she should buy for the walls was stated that the measurements have increments of 0.01 meter.
It's important to note that there are 2 decimal places.
In this case, the appropriate option is 2.51 meters.
In conclusion, the correct option is A.
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1. Solve the Systemy = 2x - 6y = -6x - 14
x = -1
Explanation:The given equations:
y = 2x - 6
y = -6x - 14
Since both equations are equal to y, we will equate the right hand side of both equations.
y = y
2x - 6 = -6x - 14
collect like terms:
2x + 6x = -14 + 6
8x = -8
divide both sides by 8:
8x/8 = -8/8
x = -1
If a bug can flap its wings at a rate of 69 times in 4 seconds, how manytimes do they flap their wings in 1.476 minutes? Round to 1 decimal.w
First, we need to change 1.476 minute to seconds
1.476 minutes = 1.476 x 60= 88.56 seconds
Let the number of times they flap there wings in 1.476 minute be X
69 times = 4 seconds
X = 88.56 seconds
cross-multiply
4X = 69(88.56)
4X= 6110.64
Divide both-side of the equation by 4
X = 1 527.66 ≈ 1 528 times
solve for k 8/7=12/k
Answer:
[tex]k=\frac{21}{2}[/tex]Explanation:
Given the equation:
[tex]\frac{8}{7}=\frac{12}{k}[/tex]To solve for k, let us take the reciprocal of both sides, so that k is a numerator.
[tex]\frac{7}{8}=\frac{k}{12}[/tex]Multiply both sides by 12
[tex]\begin{gathered} k=\frac{7}{8}\times12 \\ \\ =\frac{7\times12}{8} \\ \\ =\frac{84}{8} \\ \\ =\frac{21}{2} \end{gathered}[/tex]55 miles per hour Anserw
Answer: Uhm hold on
Step-by-step explanation:
The area of a trapezoid is given by the formula A = (a + b). Solve the formula for b.
Starting from the given formula:
[tex]A=\frac{h}{2}(a+b)[/tex]Multiply both sides of the equation by 2:
[tex]\begin{gathered} \Rightarrow2\times A=2\times\frac{h}{2}(a+b) \\ \Rightarrow2A=h(a+b) \end{gathered}[/tex]Divide both sides by h:
[tex]\begin{gathered} \Rightarrow\frac{2A}{h}=\frac{h(a+b)}{h} \\ \Rightarrow\frac{2A}{h}=a+b \end{gathered}[/tex]Substract a from both sides of the equation:
[tex]\begin{gathered} \Rightarrow\frac{2A}{h}-a=a+b-a \\ \Rightarrow\frac{2A}{h}-a=b \end{gathered}[/tex]Therefore:
[tex]b=\frac{2A}{h}-a[/tex]A florist has 60 tulips and 72 daffodils. The florist will make bouquets with the same number of tulips and the same number of daffodils in each, using all the flowers.
What is the greatest number of bouquets the florist can make?
Enter the correct answer in the box.
The greatest number of bouquets that the florist can make is 12.
What is the greatest number of bouquets that the florist can make?The greatest number of bouquets that the florist can make can be determined by calculating the highest common factor of 60 and 72. The factor of a number is the number that divides another number without any remainder. The highest common factor of two or more numbers is the highest factor that is common to two or more numbers.
Factors of 60 =1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60.
Factors of 72 = 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36 and 72.
Highest common factor = 12
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HURRY!!!
What is the value of |243| + |−23| − |−16|?
Answer:
250
Step-by-step explanation:
everything u need is in the picture
How to do this? Primary math please teach me
By using products and percentages, the grandson had the amount of $ 225 before to buy foods and beverages.
How much money did the grandson have at first?In accordance with the statement, the grandson spent 80 % of all his amount to buy some food, later 40 % of the remaining money to buy some beverages and there was $ 27 remaining. We need to determine the amount that the grandson had initially. Then, the situation can be described by the following mathematical expression:
(1 - 80 / 100) · (1 - 40 / 100) · x = 27
(20 / 100) · (60 / 100) · x = 27
(1200 / 10000) · x = 27
(12 / 100) · x = 27
12 · x = 2700
x = 2700 / 12
x = 225
By means of percentages, the grandson had an amount of $ 225 before buying foods and beverages.
RemarkThe name of the grandson cannot be added due to profanity detector.
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A new cream was developed to reduce the irritation caused by poison ivy. To test the effectiveness, researchers placed an ad online asking for volunteers to participate in the study, and 100 subjects replied. They are informed that one group of 50 will receive a new cream and the remaining group of 50 will receive a cream with no active ingredient. The subjects are numbered 1–100 and these numbers are put into a random number generator. The first 50 unique numbers will represent the subjects that will receive the new cream and the remaining 50 subjects will receive the inactive cream. All subjects are exposed to poison ivy and given their cream. They are asked to return in three days and report their level of irritation. The average scores for each cream are compared.
Does this procedure describe a completely randomized design for this experiment?
Yes, the subjects will be exposed to the poison ivy.
Yes, the subjects are randomly assigned to each treatment.
No, the subjects are asked to return in three days. It is possible that some of them may not return, which will introduce bias into the results.
No, the subjects are randomly assigned to the two treatment groups, but the groups are not guaranteed to have 50 subjects in each.
The procedure describe a completely randomized design for this research as B. Yes, the subjects are randomly assigned to each treatment.
How to illustrate the information?In a randomized block design, the experimental units are divided into groups that we refer to as blocks. The experimental units inside each of the blocks will then be randomly assigned treatments.
As we can see from the question, they were divided into Blocks based on how much sun exposure they received while engaging in outdoor activities. After that, random treatments are assigned to each group.
Here, the participants are divided into groups based on their sun exposure, and then both treatments are distributed at random among the groups.
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The student council raises money for the school dance every year through an auction. Each auction ticket costs $125. If the student council needs to raise greater than or equal to $2,000, which inequality represents the number of auction tickets,t, the student council must sell?
The inequality that represents the number of auction tickets,t, the student council must sell is given as 125t ≥ 2000.
What is an inequality?Inequalities are created through the connection of two expressions. It should be noted that two expressions in an inequality aren't always equal. They are denoted by the symbols ≥ < > ≤
Let the total number of tickets be represented by t.
The auction ticket costs $125 and the student council needs to raise greater than or equal t $2,000. This will be 125t ≥ 2000.
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please answer asap im begging
Answer:
y = 3x + 3 :D
Step-by-step explanation:
Equation of line: y = mx + b :)
b: Y intercept
m: Slope
Now lets solve :)
Lets find M first :)
We need 2 points so lets use (0,3) and (1,6) :)
We fist need to subtract :)
6 - 3 = 3
1 - 0 = 1
Now we divide :)
3/1 = 3
Lets put that into our equation :)
y = 3x + b
Now lets find B :)
To find b, we need to see where the line intercepts the y axis! This will be at point (0,3)!
The y intercept will be 3 :)
The final equation will be y = 3x + 3 :)
Have an amazing day!!
Please rate!
What is the next fraction in the sequence 19/20,4/5,13/20,1/2
A change in temperature of 6°C is equivalent to achange in temperature of•F
A change in temperature of 6°C is equivalent to a
change in temperature of 10.8°F
Explanations:From the table drawn:
A change in temperature of 1°C is equivalent to 1.8°F
A change in temperature of 2°C is equivalent to 3.6°F
Following the relationships above, we can conclude that the relationship between °C and °F is:
°F = 1.8 °C
Therefore, a change in temperature of 6°C will be equivalent to:
°F = 1.8 °C
°F = 1.8 x 6
°F = 10.8°F
Find the average rate of change of k(x) = 4x + 11 over the interval [-19, -17].
Step 1:
Concept:
Use the rate of change formula below.
[tex]\begin{gathered} \text{Rate of change = }\frac{k(b)\text{ - k(a)}}{b\text{ - a}} \\ k(x)\text{ = 4x + 11} \\ a\text{ = -19} \\ b\text{ = -17} \end{gathered}[/tex]Step 2
Find k(a) and k(b)
[tex]\begin{gathered} k(-19)\text{ = 4(-19) + 11 = -76 + 11 = -65} \\ k(-17)\text{ = 4(-17) + 11 = -68 + 11= - 57} \end{gathered}[/tex]Step 3:
[tex]\begin{gathered} \text{Rate of change = }\frac{-57\text{ - (-65)}}{-17\text{ - (-19)}} \\ =\text{ }\frac{-57\text{ + 65}}{-17\text{ + 19}} \\ =\text{ }\frac{8}{2} \\ =\text{ 4} \end{gathered}[/tex]help me pls I don't understand what I'm supposed to put here
The feedback loops in each situation are classified as follows:
a) Positive.
b) Negative.
What are positive and negative feedback loops?A positive feedback loop is when there is an amplification or growth of the output signal.A negative feedback loop is when there is a damping of the output signal, which is equivalent to a reduction in it's effect.In the context of this problem, in item a, there is a continuous amplification of the output signal, which is the surface temperatures, as they keep increasing, the three effects listed contribute to the increase of temperature, then the system go back to the beginning still with increasing temperatures, hence it is a positive feedback loop.
In item b, we have a loop with changes in the temperature, it increases and then it decreases, and so on, hence it is a negative feedback loop.
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Karma has 110 pounds of rice to sell. A vendor offers her $0.01 per 5 grams for her rice. How much money will karma make if she sells her rice to this vendor
Karma will make $99.78 if she sells 110 pounds of rice to the vendor
Quantity of rice available with Karma = 110 pounds
A pound is a unit of weight that is mostly used in the United States, Great Britain, and other English-speaking nations. A pound is approximately 0.454 kilos. A quantity of something is said to weigh one pound if it weighs that much.
The conversion rate of pounds to grams:
1 pound = 453.59 grams
So, 110 pounds will be equal to:
110*453.59
=49894.9 grams
Selling price for 5 grams = $0.01
Selling price for 1 gram:
The selling price of 5 grams/ Price for 5 grams
0.01/5
=$0.002
Selling price for 49894.9 grams = 49894.9*0.002
= $99.78
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QUESTION ATTACHED
PLEASE HELp
Answer:
yh no question....thanks for the points tho :)
Find the first 5 terms of the following sequence. For the first term let a_1=1. Round your answer to the nearest hundredth.a_n= \frac{2^n}{n^2} 1st term = Answer2nd term = Answer3rd term = Answer4th term = Answer5th term = Answer
1st term
Given:
[tex]a_1=1[/tex]With the formula of the sequence:
[tex]\begin{gathered} a_1=\frac{2^1}{1^2}=\frac{2}{1}=2 \\ \\ a_1=2 \end{gathered}[/tex]________
Second term:
[tex]\begin{gathered} a_2=\frac{2^2}{2^2}=\frac{4}{4}=1 \\ \\ a_2=1 \end{gathered}[/tex]____________
Third term:
[tex]\begin{gathered} a_3=\frac{2^3}{3^2}=\frac{8}{9}\approx0.89 \\ \\ a_3=0.89 \end{gathered}[/tex]_________
Fourth term:
[tex]\begin{gathered} a_4=\frac{2^4}{4^2}=\frac{16}{16}=1 \\ \\ a_4=1 \end{gathered}[/tex]-________________
Fifth term:
[tex]a_5=\frac{2^5}{5^2}=\frac{32}{25}=1.28[/tex]What is an equivalent expression to 20x - 45y
Equivalent linear expressions are expressions that have the same value. That is, if you have two linear expressions that are equivalent to one another, and you plug the same value in for the variable in each of them, you will get the same result in each of them.
In the case of this question, the equaivalent expression can be gotten by factorizing the expression
[tex]undefined[/tex]hello can you explain to me how I should write this out please
Here, we want to calculate the interquartile range
Mathematically, this is the difference between the lower quartile (1st quartile or 25th percentile) and the upper quartile (3rd quartile or 75th percentile)
We already have the numbers arranged from top to bottom
The count of numbers is 9 numbers
We have the first quartile as;
[tex]\frac{(n+1)}{4}\text{ = }\frac{10}{4}\text{ = 2.5th which is 3rd term}[/tex]The third term here is the weight of baby Selena
The 3rd quartile can be calculated as;
[tex]\frac{3(n+1)}{4}\text{ = }\frac{3(9+1)}{4}\text{ = 7.5 which is 8th term}[/tex]The 8th term is the weight of baby Me
The difference between these weights give the interquartile range as follows;
[tex]\text{Interquartile range =Q}_3-Q_1\text{ = 8 lbs 2 oz - 6 lbs 1 oz = 2 lbs 1 oz}[/tex]PLEASEEEEEEEE HELPPP
If Greg has 1 1/2 servings of cereal for breakfast each day, he can consume 8 breakfasts from a box of cereal.
The price of one breakfast from a regular-sized box of cereal is $0.54 if the box costs $4.29.
Greg could consume 4 additional breakfast portions from a single family-sized box.
How to find unit rate of Greg's breakfast?A regular-sized box of cereal = 12 servings
If Greg eats 1 1/2 servings for breakfast every day
Number of breakfast Greg can eat in a regular-sized box = A regular-sized box of cereal / servings of breakfast eaten everyday
= [tex]\frac{12}{\frac{11}{2} }[/tex]
=[tex]\frac{12}{\frac{3}{2} }[/tex]
multiply by the reciprocal of [tex]\frac{3}{2}[/tex]
= 12 × [tex]\frac{2}{3}[/tex]
= [tex]\frac{24}{3}[/tex]
= 8 breakfast
Cost of regular-sized box of cereal = $4.29.
Cost of one breakfast from a regular-sized box of cereal = Cost of regular-sized box of cereal ÷ Number of breakfast Greg can eat in a box
= [tex]\frac{4.29}{8}[/tex]
= 0.53625
Approximately,
$0.54 per breakfast
If Greg purchased the family-sized box of cereal that contains 18 servings
Family-sized box of cereal divided by the daily serves of breakfast is the number of breakfasts Greg can consume.
= 18 servings / [tex]\frac{11}{2}[/tex]
= 18 ÷[tex]\frac{3}{2}[/tex]
= 18 × [tex]\frac{2}{3}[/tex]
= [tex]\frac{36}{3}[/tex]
= 12 servings
Consequently, the number of additional breakfasts Greg may consume from a single family-sized package
= Number of breakfast Greg can eat in a family-sized box - Number of breakfast Greg can eat in a regular-sized box
= 12 servings - 8 servings
= 4 servings
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El 30 % de que numero es el 30 % del 10 % de 700
Answer:
70
Step-by-step explanation:
[tex]\frac{(700)(0.1)(0.3)}{0.3}=70[/tex]
Peter's farm has 160 meters of fencing, and he wants to fence a rectangular field thatborders a straight river. He needs no fence along the river side. Find the largest areaof Peter's farm that can be fenced.
ANSWER
3200 m²
EXPLANATION
Peter wants to build a fence around a rectangular field, except for one side because the river is there,
So, the total perimeter of the fence is,
[tex]P=W+W+L=2W+L[/tex]And this is equal to 160 m. Solving for L,
[tex]160=2W+L\text{ }\Rightarrow\text{ }L=160-2W[/tex]The area of this field is,
[tex]A=WL[/tex]Replace L with the expression we found from the perimeter,
[tex]A=W(160-2W)=160W-2W^2[/tex]The area is given by a quadratic function whose leading coefficient is negative, which means that the graph is a downward parabola and, therefore, the vertex is the maximum value of the area.
The x-coordinate of the vertex is given by,
[tex]f(x)=ax^2+bx+c\text{ }\Rightarrow\text{ }x_{vertex}=\frac{-b}{2a}[/tex]In this case, x is W, a = -2, and b = 160, so the width of the field for the maximum area is,
[tex]W_{vertex}=\frac{-160}{2(-2)}=\frac{160}{4}=40m[/tex]And the length when W = 40 is,
[tex]L=160-2W=160-2\cdot40=160-80=80m[/tex]And the area is,
[tex]A=WL=40m\cdot80m=3200m^2[/tex]Hence, the largest area of Peter's farm that can be fenced is 3200 square meters.
of one hundred and forty two students attending college , 23 are criminal justice majors. if 9 are selected at random, determine the probability each 9 criminal justice major. set up the problem as if it were to be solved but don't solve.
The probablity that first one selected is a criminal justice major is,
[tex]P_1=\frac{23}{142}[/tex]Now, the probablity that second one is a criminal justice major is when selected without replacement,
[tex]P_2=\frac{22}{141}[/tex]Simirally,
[tex]\begin{gathered} P_3=\frac{21}{140} \\ P_4=\frac{20}{139} \\ \ldots.\text{.} \end{gathered}[/tex]Thus, using the multiplication theorem,
[tex]\begin{gathered} P=P_1\times P_2\times\ldots\ldots.P_9 \\ =\frac{23}{142}\times\frac{22}{141}\times\frac{21}{140}\times\ldots\ldots\ldots\ldots\ldots\frac{15}{134} \end{gathered}[/tex]Thus, the above equation gives the requried probablity.
help plwsty Graph the equation: y-1 = 2/3(x-3)?
The given expression : y-1=2/3(x-3)
Simplify the equation :
[tex]\begin{gathered} y-1=\frac{2}{3}(x-3) \\ y=\frac{2}{3}x-\frac{2}{3}(3)+1 \\ y=\frac{2}{3}x-2+1 \\ y=\frac{2}{3}x-1 \end{gathered}[/tex]for the graph we need atleast two coordinates
Let at x=0 then
y=2/3(0)-1
y=-1
Cooridnate = (0,-1)
Now, let x=9 then
y=2/3(9)-1
y=2(3)-1
y=5
Coordinate =(9,5)
Plot these point (0,-1) & (9,5)on the graph and join them by staright line
The graph will be ;
I need help with this homework assignment it’s due by mid night
step 1
see the attached figure to better understand the problem'
step 2
Hypotenuse is AB
Opposite side is BC
Adjacent side is AC
because, the opposite side is the side opposite to the given angle (35 degrees)
adjacent side is the side adjacent to the given angle (35 degrees) and the hypotenuse is the greater side of a right triangle (is the opposite side to the angle of 90 degrees)
step 3
To find out the value of L
we use
cos(35)=40/L -----> adjacent side divided by the hypotenuse
step 4
solve for L
L=40/cos(35)
step 5
L=48.83 ft
step 6
the length of the ladder must be greater than 48.83 ft
step 7
A 50 ft ladder long is enought
because 50 > 48.83
Julia sells subs for $6 each. How many subs will she need to sell to break even each month based on the costs listed below?
Labor costs (management & workers) = $11,000
Insurance = $400
Rent = $1300
Utilities = $300
Average cost of ingredients/packaging for each sub = $1.32
Answer:
2777.7777... subs
Step-by-step explanation:
11000+400+1300+300=13000
6-1.32=4.68
13,000/4.68
=2777.777777...