Answers
The statements that are true regarding the temperature include:
1. At noon, the temperature is - 9 1/2°F.
2. The temperature at 5pm is - 15 3/4°F.
3. The change in temperature from noon to 5pm is - 6 1/4°F.
How to calculate the temperature?From the information, the temperature at 6A.M is -14°D and the temperature increases at an average of 3/4°F each hour until noon. Then it drops at 1 1/4°F until 5P.M.
The temperature at noon will be:
= -14 + (3/4 × 6)
= -14 + 4.5
= -9.5°F
The temperature at 5pm will be:
= -9.5 - (1 1/4 × 5)
= -9.5 - 6.25
= -15.75
The total change in temperature will be:
= Ending temperature - Starting temperature
= -15.75°F - (-14°F)
= 1.75°F
The temperature change from noon to 5 pm will be:
= -15.75 - (-9.5)
= -6.25 = 6 1/4°F
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Related Questions
a class has 30 cups of popcorn. they are filling individual bags with three-fourths cups of popcorn. write a number sentence to show how many bags they can fill with popcorn
Answers
If the clas has 30 cups and fills individual bags with three-fourths cups then the number of bags that can be filled
= 30 / (3/4)
= 30 * 4/3
= 40
Hence 40 bags can be filled with popcorn
The depth of a rain puddle D(t) is given in inches, and t is given in minutes. If the depth is changing with respect to time, which expression gives the rate of change at which the depth is changing at 1 minute? D″(1)D″(0) − D″(2)D′(1)D(0) − D(2)
Answers
The derivative evaluated at t=1 minute will give us the rate of change (or the slope) of the line equation which approximate the function at that point. In other words, the rate of change is given by
[tex]m=\frac{dD(t)}{dt}|_{t=1}=D^{\prime}(1)[/tex]Therefore, the answer is option 3 from top to bottom.
Need help with this question! Need help with showing work.
Answers
Zachary has a container of worms for fishing.
When empty, the mass of the container is 225 grams. With the worms in
it, the container has a total mass of 751.4 grams. Each worm has a mass
of 11.2 grams. How many worms are in the container? Write and solve an
equation to model this situation.
Answers
Answer:
there are 47 worms in the container
Step-by-step explanation:
empty container- 225 g.
full container- 751.4 g.
1 worm- 11.2 g.
equation
(751.4-225)/11.2
751.4-225= 526.4
526.4/11.2= 47 worms
Lisa earns $39 for 3 hours of babysitting what does she earn per hour of babysitting?
Answers
Answer:
13$
Step-by-step explanation:
just divide 39 by three.
39 dive by 3=13
13 x 3=39
Which values are in the solution set to this inequality? 3 x 4 < 9 and − x 6 ≥ − 3 x = 4 x = 11 x = 18 x = 12 x = 15
Answers
The value of x in the solution set is x = 4
How to determine the values in the solution setThe system of inequalities is given as
3x + 4 < 9
-x + 6 ≥ -3
The first step is to solve for x in both inequalities in the system of inequalities
So, we have
3x + 4 < 9
3x < 5
Divide by 3
x < 5/3
Also, we have
-x + 6 ≥ -3
-x ≥ -9
Divide by -1
x ≤ 9
So, we have
x < 5/3 and x ≤ 9
x ≤ 9 is a superset of x < 5/3
So, we have
x ≤ 9
This means that the values of x do not exceed 9
An example of this value (from the options) is 4
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2. A rectangle with a length of 20 centimeters and an unknown width of x centimeters has a
smaller rectangle cut out of it. The smaller rectangle has a length of 16 cm and a width of
x-3. The area of the shaded region (what remains) is 80 square centimeters.
Set up
and solve an equation for the value of x.
X
x-3
20 cm
16 cm
Answers
The value of x is 8 cm.
What is the area of a rectangle?The area of a rectangle is the space occupied by the rectangle inside its perimeter. A rectangle's area is calculated by multiplying its length by its width.
Given:
Length of rectangle = 20 cm
Width of rectangle= x cm
Area of rectangle = length × width
= 20x cm²
The dimensions of the smaller rectangle cut out of it are,
Length = 16cm
Width = x-3
Area of the smaller rectangle = length × width
= 16(x - 3) cm²
The area of the shaded portion will be equal to the difference between both areas which is given as 80 square centimeters.
20x - 16(x-3) = 80
Now, we need to solve this equation to obtain the value of x.
20x - 16x + 48 = 80
4x = 80 - 48
4x = 32
x = 32/4
x = 8
Therefore, the value of x is 8 cm.
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I need help please it would help me a lot thank u
Answers
Her monthly payment will be $103.29.
Define simple interest.Simple interest is a quick and simple formula for figuring out how much interest will be charged on a loan. The daily interest rate, the principle, and the number of days between payments are multiplied to calculate simple interest. Simple Interest (S.I.) is a way for figuring out how much interest will accrue on a specific principal sum of money at a certain rate of interest. Because simple interest keeps total interest payments lower than compound interest, it is better for borrowers. Simple interest is used in the monthly amortization of auto loans and retailer instalment loans. As the loan balance decreases with each monthly payment, so does the interest.
Given Data
Principal = $939
Time = 12 months
Rate = 11%
Simple interest = P(R)(T)
Simple interest = [tex]\frac{939(1)(11)}{100}[/tex]
Simple interest = 103.29
Her monthly payment will be $103.29.
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Carter budgets
18
% of his salary for food. His salary is $
3
,
900
. How much money does he need to budget for his food?
Answers
Answer:
3900*18%=702
Step-by-step explanation:
Give the focus, directrix, and axis of the parabola.x^2=4y
Answers
Solution:
The equation of an up-down facing parabola with vertex at (h, k) and focal length p is expressed as
[tex](x-h)^2=4p(y-k)\text{ ----- equation 1}[/tex]g(4) please answer asap
Answers
Which inequality is represented by the number line below?
Answers
An inequality which is represented by the number line above is: x < -7.
What is a number line?A number line can be defined as a type of graph with a graduated straight line which contains both positive and negative numbers (numerical values) that are placed at equal intervals along its length.
The rules for writing an inequality.In Mathematics, there are four (4) rules that are generally used to write an inequality and these include the following:
The circle/dot on a number line should be filled when the inequality symbol is (≥ or ≤).The circle/dot on a number line should not be filled when the inequality symbol is (> or <).When the arrow points to the left on a number line, the inequality is either (≤ or <).When the arrow points to the right on a number line, the inequality is either (≥ or >).Next, we would apply the aforementioned rules to write the solution to the inequality shown in the number line above:
x < -7
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A vehicle factory manufactures cars. The unit cost C (the cost in dollars to make each car) depends on the number of cars made. If x cars are made, then the unit cost is given by the function C(x)=0.4x^2 - 104x + 13,586. How many cars must be made to minimize the unit cost? Do not round the answer
Answers
Answer:
130 cars
Step-by-step explanation:
You want the value of x (the number of cars made) that minimizes the unit cost, given by C(x) = 0.4x² -104x +13586.
VertexThe minimum cost will be found at the vertex of this quadratic cost function. For quadratic ax²+bx+c, the vertex is found at x=-b/(2a).
The cost function has a=0.4 and b=-104, so the number of cars that must be made to minimize the unit cost is ...
x = -b/(2a) = -(-104)/(2(0.4)) = 104/0.8
x = 130
130 cars must be made to minimize the unit cost.
__
Additional comment
A graphing calculator can plot the cost function and show you the coordinates of the minimum cost. The attachment shows the minimum cost per car is $6826 when 130 cars are made.
a jar contains 9/10 cups of honey you poured 2/3 cups into a bowl how many cups of Honey are left in the jar
Answers
Given the information on the proble, we have to substract 2/3 cups from the 9/10 cups that the jar contains. We can use the following general rule for the substraction of fractions:
[tex]\begin{gathered} \frac{a}{b}-\frac{c}{d}=\frac{a\cdot d-b\cdot c}{b\cdot d} \\ b,d\ne0 \end{gathered}[/tex]then, in this case, we have the following:
[tex]\frac{9}{10}-\frac{2}{3}=\frac{9\cdot3-10\cdot2}{10\cdot3}=\frac{27-20}{30}=\frac{7}{30}[/tex]therefore, there are 7/30 cups of honey left in the jar
You use a juice mix to make orange juice.
You combine 12 ounces of the mix with 36 ounces of water.
Answers
Answer:
48
Step-by-step explanaause tion:
because there are 12 ounces in orange juce and 36 ounces of water combime them together 48
Find the charge Q that requires 96J of energy to be moved through a potential difference of 16V ?
Answers
6 Coulombs are needed to produce the 96J of energy.
Describe energy.Physics defines energy as the quantity of work or capability that may be applied to a thing to make it functional. Additionally, it refers to the capacity to exert force on an object as well as energy that is neither generated nor destroyed.
96 J of energy and a 16 V potential difference
Using the following formula, the work or energy is:
Work completed equals Charge x Potential Difference.
Charge = thus work completed/potential difference
Charge equals 96/16, or 6 Coulombs.
Therefore, 6 Coulombs of charged are needed to produce 96J of energy.
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What is the reason for each step in the solution of the equation?
4x−1=−2(x+1)
Answers
The solution of the equation 4 x - 1 = - 2 (x + 1) is x = [tex]\frac{-1}{6}[/tex]
4 x - 1 = - 2 (x + 1) (given)
4 x - 1 = - 2 x - 2 (applying distributive law to RHS)
4 x - 1 + 2 x = - 2 (transferring literal term from RHS to LHS)
6 x - 1 = - 2 (simplifying literal terms of LHS)
6 x = - 2 + 1 (transferring constant term from LHS to RHS)
6 x = - 1 (simplifying constant terms of RHS)
x = - 1 / 6 (transferring literal coefficient from LHS to RHS)
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Three-fourths of a box of chocolate is left over. Benjamin eats 2/3 of the leftover chocolate. What fraction of a box does Benjamin eat?
Answers
We will have that he ate the following amount:
So, he ate the following:
[tex]x=(\frac{3}{4})(\frac{3}{4})\Rightarrow x=\frac{1}{2}[/tex]He ate a total of 1/2 of the chocolate.
WILL GIVE BRAINLYEST 100 POINTS
Answers
Answer:
first one 49.75
second one 154.5
Step-by-step explanation:
Answer:
1.) 49 [tex]\frac{3}{4}[/tex] [tex]in^{2}[/tex] 2.) 154.5 [tex]cm^{2}[/tex]
Step-by-step explanation:
These involve finding the area of a rectangular prism.
1.)
A = 2wl + 2lh + 2hw
A = 2(3.25 x 3.5) + 2(3.5 x 2) + 2(2 x 3.25)
A = 2(11.375) + 2(7) + 2(6.5)
A = 22.75 + 14 + 13
A = 49.75
2.)
A = 2wl + 2lh + 2hw
A = 2(4.5 x 8.5) + 2(8.5 x 3) + 2(3 x 4.5)
A = 2(38.25) + 2(25.5) + 2(13.5)
A = 76.5 + 51 + 27
A = 154.5
Miss Jones mowed 1/4 of her lawn her son mowed 2/5 of it. who mowed most of the lawn? how much of the lawn still needs to be mowed
Answers
The son mowed most of the lawn
7/20 of the lawn still needs to be mowed
Explanations:Size of the lawn mowed by Miss Jones = 1/4
Size of the lawn mowed by her son = 2/5
To know who mowed the most lawn, find the LCM of the denominators
The LCM of 4and 5 = 20
Make the denominators of both fractions to be 20
Size of the lawn mowed by Miss Jones = 1/4 x 5/5 = 5/20
Size of the lawn mowed by her son = 2/5 x 4/4 = 8/20
Since 8/20 > 5/20, Miss Jone's son mowed more part of the lawn than Miss Jone
How much of the lawn still needs to be mowed:
[tex]\begin{gathered} \text{The part of the lawn that still n}eeds\text{ to be mowed = 1 -}\frac{1}{4}-\frac{2}{5}\text{ } \\ \text{The part of the lawn that still n}eds\text{ to be mowed = }\frac{7}{20} \end{gathered}[/tex]John and Ariana bought school supplies. John spent $10.50 on 5 notebooks and 4 pens. Ariana spent $7.80 on 4 notebooks and 2 pens
What is the cost of 1 notebook and what is the cost of 1 pen?
Answers
The most appropriate choice for simultaneous linear equation will be given by -
Cost of one notebook is $1.70 and cost of one pen is $0.50
What is simultaneous linear equation?
At first it is important to know about linear equation
Equation shows the equality between two algebraic expressions by connecting the two algebraic expressions by an equal to sign.
A one degree equation is known as linear equation.
Two or more linear equations, which can be solved together to obtain common solution are known as simultaneous linear equation.
Here,
Let the cost of one notebook be $x and the cost of one pen be $y
John spent $10.50 on 5 notebooks and 4 pens.
So,
5x + 4y = 10.50 ........... (1)
Ariana spent $7.80 on 4 notebooks and 2 pens
So,
4x + 2y = 7.80 ............ (2)
Multiplying equation (2) by 2,
8x + 4y = 15.60 ............ (3)
Subtracting (1) from (3),
3x = 5.10
[tex]x = \frac{5.10}{3}[/tex]
[tex]x =[/tex] $[tex]1.70[/tex]
Putting the value of x in (1)
[tex]5 \times 1.70 + 4y = 10.50\\8,50 +4y = 4y = 10.50\\4y = 10.50 - 8.50\\4y = 2\\y = \frac{2}{4}[/tex]
y = $[tex]0.50[/tex]
Cost of one notebook is $1.70 and cost of one pen is $0.50
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The word that has the/k/ sound
Answers
Answer:
kiss
i just thought of kiss I'm probably not correct to be honest
HELPPPP!
Does the frequency distribution given appear to be normal?
Score ---Frequency
65-69 4
70-74 5
75-79 6
80-84 4
85-89 6
90-94 4
95-99 5
Yes, the frequencies preceding the maximum are roughly a mirror image of those that follow the maximum
No, there is not a concentration of frequencies in the middle
Yes, there is symmetry in the distribution
No, the frequencies increase, reach a maximum, then decrease
Answers
It should be noted that the frequency distribution given appear to be normal as D. No, the frequencies increase, reach a maximum, then decrease.
How to illustrate the information?It should be noted that the graph that's illustrated shows that there is a concentration of the data points in the middle.
It should be noted that this illustrates that isn't not normal and the bell shaped curve was illustrated.
Therefore, based on the information, the correct option is D.
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A bag contains 7 red balls and 3 white balls. Andrew, Betsy, Cam and Doug, in that order are going to randomly pick a ball out of the bag and not replace it. The first person to draw a white ball wins $160. What is the probability that Doug will win the S160?
Answers
ANSWER
3/7 (the correct option is not there)
EXPLANATION
There are 7 red balls and 3 white balls in the bag.
To find the probability of Doug being the first to draw the white ball, we have to assume that Andrew, Betsy and Cam all draw red balls.
There are a total of 10 balls there.
After Andrew Betsy and Doug pick their balls, there will be 7 balls left, that is:
4 red balls and 3 white balls.
Ther probaility of Doug picking the white ball will therefore be the number of white balls divided by the total number of balls.
That is:
P(Doug) = 3/7
That is the probability that Doug will win the $160.
Determine whether the statement can be assumed from the given figure.
Yes/no
Share/do not share
Answers
Answer:
No
do not share
Step-by-step explanation:
Two rays make up angle 7 and two DIFFERENT rays make up angle 8 (angle 6 is in between them) If they were a linear pair with a shared side, it would look like a loooong line with a ray sticking out that makes two angles. In the image, Angle1 and Angle2 are a linear pair. And Angle1 and Angle4 also.
They do not share at all.
Simplify the fraction
18
60
as much as possible.
3
10
18
60
12
54
Answers
Answer:
3/10
Hope this helps!
Have a good day :)
Express 4+-4as a complex number ( term of i) 4+-4
Answers
Complex numbers are numbers in the form
[tex]z=a+bi[/tex]where i represents the imaginary number defined as the square root of minus one.
[tex]i=\sqrt{-1}[/tex]We call a as the real part of the complex number and b the imaginary part.
We want to rewrite the number
[tex]\sqrt{4}+\sqrt{-4}[/tex]in terms of the imaginary constant.
Using the following property
[tex]\sqrt{a\cdot b}=\sqrt{a}\cdot\sqrt{b}[/tex]We can rewrite the second term of our sum as
[tex]\sqrt{-4}=\sqrt{(-1)(4)}=\sqrt{-1}\sqrt{4}[/tex]Then, our number can be rewritten as
[tex]\sqrt{4}+\sqrt{-4}=\sqrt{4}+\sqrt{-1}\sqrt{4}[/tex]Using the definition of the imaginary unit we can rewrite our number as
[tex]\sqrt{4}+\sqrt{-1}\sqrt{4}=\sqrt{4}+\sqrt{4}i[/tex]Then, we can rewrite the square roots as
[tex]\sqrt{4}=2[/tex]The simplified version of our number is
[tex]\sqrt{4}+\sqrt{-4}=2+2i[/tex]Use what you know about domain to select all of the following functions that could be the one graphed.
Answers
Using translation, the functions that could be the one graphed are given as follows:
y = sqrt(x) - 3.y = sqrt(x) - 1.What is a translation?A translation is when a function undergoes a change in it's definition, keeping the same shape and side length, just changing the position.
The possible translations are given as follows:
Translation down.Translation up.Translation left.Translation right.In the context of the graph of this problem, the parent function is the square root of x, defined as follows:
y = sqrt(x)
The domain of this function, as is the domain of the graph, is for non-negative values of x, hence:
x ≥ 0.
From the graph, the function was translated down a units, keeping the domain but changing the range, hence the translation has the following format:
y = sqrt(x) - a.
Hence the first two options can be correct, either with a = 1 or with a = 3.
What is the missing information?The information to solve this problem is given by the image at the end of the answer.
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a seventh-grade student does not believe that -5 is greater than -2. the student argues that a debt of $5 is greater than a debt of $2 how do you respond?
Answers
Answer:
it is greater then -2
Step-by-step explanation:
heres how I was taught, if you have a number say like 8 then its greater the day 5 same for -8 and -5 the long it is away from 0 the greater it is
Simplify these expressions.
a. n + n + n
b. 3c + 5c
c. 3xy + 5y − 2xy + 3y
Answers
The expressions are simplified to;
a. 3n
b. 8c
c. xy + 8y
What are algebraic expressions?Algebraic expressions are defined as mathematical expressions that are composed of coefficients, variables, terms, factors and constants.
They are also made up of some operations, mathematical or arithmetic, which includes;
BracketDivisionMultiplicationAdditionSubtractionParentheses, etcGiven the expressions;
a. n + n + n
Since they are like terms, collect and them together
We have;
3n
b. 3c + 5c
Add the like terms
8c
c. 3xy + 5y − 2xy + 3y
collect like terms
3xy - 2xy + 5y + 3y
Add or subtract like terms
xy + 8y
Hence, the values are 3n, 8c and xy + 8y respectively.
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