Answer: 10x-2
Step-by-step explanation:
I assume this is a rectangular park
Formula for perimeter: 2(l + w)
l= 3x+4
w= 2x-3
--------------------------------------------------------
Use PEMDAS to simplify (basic operation from left to right)
ParenthesesExponentsMultiplication and DivisionAddition and subtraction2(l+w)
=2[(3x+4)+(2x-3)]
=2[3x+4+2x-3]
=2[5x-1]
=10x-2
How is y=x related to y=x-4
Please help I really need it
Step-by-step explanation:
They both have the same gradient of 1. (Their slope is 1)
k/7 = 10 solve for k
Answer:
k=70
Step-by-step explanation:
to get k by itself you need to multiply k/7 by 7, and you multiply on both sides. 10 times 7 =70
Answer:
Step-by-step explanation:
k/7 = 10
or, k = 7*10
Therefore, k=70.
3. (02.01)
Solve for x: 3(x + 1) = -2(x - 1) + 6. (1 point)
a. 1
b.4
c.5
d.25
Answer:
A. 1
Step-by-step explanation:
3(x+1)=-2(x-1)+6
3x+3=2x-2+6
x+3=4
x=1
. Find the distance between (−4,−1) and (−2,−3).
Answer:
2.83 units
(results are in decimal form, rounded to the nearest 100th)
What is the solution to this equation?
2x + 2 = 10
O A. x= 4
O B. x = 16
O c. x = 24
O D. x = 6
Answer:
A. x= 4
Step-by-step explanation:
[tex]2x + 2 = 10[/tex]
Collect like terms and simplify
[tex]2x =10-2\\2x =8[/tex]
Divide both sides of the equation by 2
[tex]\frac{2x}{2} = \frac{8}{2} \\\\x = 4[/tex]
Find the midpoint of the line segment joining the two points.
(1.8, -3.4) and (-0.4, 1.4)
Answer:
(0.7, -1)
Step-by-step explanation:
To find the coordinates for the midpoint you add each coordinate together and divide by 2.
M = ([tex]\frac{1.8 - 0.4}{2}, \frac{-3.4 + 1.4}{2}[/tex])
M = [tex](\frac{1.4}{2}, \frac{-2}{2})[/tex]
M = (0.7, -1)
Simplify 3(x + 9) - (x - 6)
how to do this question plz
Answer:
The answer is yes.
Step-by-step explanation:
All you have to do is substitute the y, which is 5, and the x, which is 2, into the equation. When you solve it the answer in the end will be 5=5, which means that point (2,5) does line on that line.
Find the distance of the following points.
3. (0,2) (4, -1)
Hey there! I'm happy to help!
To find the distance between two points, you find the difference between the x values, square that, find the difference between the y values, square that, add the two numbers you got, and then find the square root.
We find the difference of the x values.
0-4=-4
Square it.
-4²=16
We find the difference between the y values.
2--1
2+1=3
And we square that.
3²=9
We add the two numbers we got.
16+9=25
And we find the square root.
√25=5
The distance between these points is 5. Now you can find the distance between any two points! Have a wonderful day! :D
Subtract 3x^2 + 8x from -9x^2 +3x -8
Answer:
[tex] \boxed{ \bold{ \huge {\boxed{ \sf{ - 12 {x}^{2} - 5x - 8}}}}}[/tex]
Step by step explanation
[tex] \sf{ - 9 {x}^{2} + 3x - 8 - (3 {x}^{2} + 8x)}[/tex]
When there is a ( - ) in front of an expression in parentheses, change the sign of each term in the expression
[tex] \dashrightarrow{ \sf{ - 9 {x}^{2} + 3x - 8 - 3 {x}^{2} - 8x}}[/tex]
Collect like terms
[tex] \dashrightarrow{ \sf{ - 9 {x}^{2} - 3 {x}^{2} + 3x - 8x - 8}}[/tex]
[tex] \dashrightarrow{ \sf{ - 12 {x}^{2} - 5x - 8}}[/tex]
Hope I helped!
Best regards!
this is equivalent? TRUE OR FALSE.
Step-by-step explanation:
yes of course...
just like
saying 2=x is equivalent to x=2
similarly x<3 is equivalent to 3>x
What is 25 times 0.3?
Answer:
8.3
Step-by-step explanation:
25÷3=8.3333333
I rounded it to this.
Answer: 7.5
25 * 0.3 is also 25 of 0.3, 0.3 of 25 so by multiplying you get 7.5
En el colegio de Pedro 8/25 de los cursos corresponden a la enseñanza media y el resto a basica. ¿Que numero representan los cursos de enseñanza básica?
Answer:
17
Step-by-step explanation:
Hay dos cursos que se ofrecen en la escuela y se representan como fracciones.
Cursos corresponden a la enseñanza media = 8/25
Cursos de enseñanza básica =?
Sea el número total de cursos = 1
Cursos de enseñanza básica = 1 - 8/25
= 17/25
Dado que ambos cursos están en forma de fracciones, podemos convertirlos en razones
Relación de cursos corresponden a la enseñanza media a cursos de enseñanza básica
= 8:17
Donde el número total de cursos ofrecidos = 8 + 17 = 25
Por lo tanto, el número que representa los cursos de enseñanza básica = 17.
Find the coordinates of the midpoint of a segment with the given
endpoints.
Answer:
Step-by-step explanation:
(7+4)/2 = 11/2 = 5.5
(1-1)/2 = 0/2 = 0
(5.5, 0)
answer is C
Answer:
C-(5.5,0)
Step-by-step explanation:
(x1+x2/2, y1-y2/2)
7+4/2, 1-1/2
11/2, 0/2
(5.5, 0)
Really hope this helps ;)
Solve the formula C = rd for d.
O A. de C
O
T
OB. d= C-1
O C. d=1
O D. d= TC
Answer:
C/R = D
Step-by-step explanation:
When you divide rd by r, then r is eliminated and divided into the C
Ms. G, Mr. Adams, and Ms. Leahman are going for a bike ride together on Saturday. They want to meet each other in the city but they all live in Bedstuy. Ms. G and Ms. Leahman have to bike 4 miles there, Mr. Adams is 5 miles away. They meet each other in the city and bike 2 miles together. Then they all return home the same way. How many miles did they all bike in total on Saturday?
Answer: 22 miles
Step-by-step explanation: Ms. G and Ms. Leahman both bike the same amount on Saturday:
4 miles to go to the city;
2 miles with Mr. Adams;
4 miles back to Bedstuy;
Then, both biked:
4 + 2 + 4 = 10 miles
Now, Mr. Adams bikes:
5 miles to go to the city;
2 miles together with the other two;
5 miles back to Bedstuy;
Then, he biked, in total:
5 + 2 + 5 = 12miles
So, the three of them biked, in total:
10 + 12 = 22
On Saturday, Ms. G, Mr. Adams and Ms. Leahman biked, in total, 22 miles.
|wz| – |xy| when w = –4, x = 2, y = , and z = –6.
Answer:
Answer= 23
Step-by-step explanation:
The problem would look like this: |(-4)(-6)| - |(2)(1/2)|
if solved it should look like this: |24| - |1|
which is: 24 - 1 = 23
1. What value of x will make the equation
below true?
x - 20)- 16 = 10x + 51
the answer is: [tex]x= -\frac{29}{3}[/tex]
What is the value of y in the equation 3(3y - 15) = 0? (1 point)
Answer:
y = 5
Step-by-step explanation:
Lille has a bag of chips to share with her friends. The bag contains 89 chips, and lille wants to share with 6 people including herself. She plans to give the leftovers to her sister. How many chips will her sister get?
======================================
Explanation:
Use your calculator to find that 89/6 = 14.8333 approximately
The whole part 14 means each of the six people get 14 chips
That means 6*14 = 84 chips have been eaten so far, leaving 89-84 = 5 chips left over for her sister.
----------
In other words,
89/6 = 14 remainder 5
which can be found through long division as shown below
8 is added to the square of a number.
Answer:
x^2+8
Step-by-step explanation:
One of the two equal factors of a number is
Answer:
If the two factors are equal (the same), like 4*4=16, then each of them is called a "square root." Note: a cube root is one of three equal factors of a number, for example, 2 is the cube root of 8 (that is, 2*2*2=8).
Step-by-step explanation:
Evaluate the expression for a = 3, b = 2, and c = 4. Write in simplest form.
Hello There!
Write out your equation:
Substitute the values in:
Simplify:
Solve:
It is 6.25.
Therefore, your answer is 6 1/4.
Hope This Helps You!
Good Luck :)
3.2.31
The weight of an organ in adult males has a bell-shaped distribution with a mean of 320 grams and a standard deviation of 20 grams. Us
(a) About 68% of organs will be between what weights?
(b) What percentage of organs weighs between 280 grams and 360 grams?
(c) What percentage of organs weighs less than 280 grams or more than 360 grams?
(d) What percentage of organs weighs between 300 grams and 360 grams?
This question is incomplete
Complete Question
The weight of an organ in adult males has a bell shaped distribution with a mean of 320 grams and a standard deviation of 20 grams. Use the empirical rule to determine the following. A.) About 68% of organs will be between what weights? B.) what percentage of organs weighs between 280 grams and 360 grams? C.) what percentage of organs weighs less than 280 grams or more than 360 grams? D.) what percentage of organs weighs between 300 grams and 360 grams?
Answer:
A.) About 68% of organs will be between what weights?
Therefore, 68% of the organs will weigh between 300 and 340 grams.
B.) what percentage of organs weighs between 280 grams and 360 grams?
95%
C.) what percentage of organs weighs less than 280 grams or more than 360 grams?
5%
D.) what percentage of organs weighs between 300 grams and 360 grams?
81.5%
Step-by-step explanation:
Empirical formula states that:
68% of data falls within 1 standard deviation from the mean - that means between μ - σ and μ + σ .
95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ .
Where:
μ = Population mean
σ = Population standard deviation
From the above question, we have the following information
Mean weight = 320 grams
Standard deviation = 20 grams
a) About 68% of organs weight between:
To solve for this, we would use the empirical rule:
68% of the data values lie within 1 standard deviation of the mean
Hence, 68% of the data values lie in the range:
Mean - 1 standard deviation to Mean + 1 Standard Deviation.
Mean - 1 Standard Deviation
μ - σ
= 320grams - 20grams = 300 grams
Mean + 1 Standard Deviation
μ + σ
= 320grams + 20grams = 340 grams
Therefore, 68% of the organs will weigh between 300 and 340 grams.
B.) what percentage of organs weighs between 280 grams and 360 grams?
Mean weight = 320 grams
Standard deviation = 20 grams
Hence,
x - mean = 280 grams - 320 grams = -40 grams
x - mean = 360 grams - 320 grams = 40 grams
Note that both differences = 2 × standard deviation
Hence, from the empirical formula above,
95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ applies
Therefore, 95% of the organs fall between 280 grams and 320 grams
C.) what percentage of organs weighs less than 280 grams or more than 360 grams?
Mean weight = 320 grams
Standard deviation = 20 grams
Hence,
x - mean = 280 grams - 320 grams = -40 grams
x - mean = 360 grams - 320 grams = 40 grams
So, from the empirical formula above,
95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ applies
Therefore, 95% of the organs fall between 280 grams and 320 grams
It is important to note that finding the percentage of data that weighs less than or more than the given range of values, the formula is given as:
Percentage of Value outside( less than or more than) the range = 100% - Percentage of values within the range
100% - 95%
= 5%
Therefore, the percentage of organs weighs less than 280 grams or more than 360 grams is 5%
D.) what percentage of organs weighs between 300 grams and 360 grams?
Mean weight = 320 grams
Standard deviation = 20 grams
Hence,
x - mean = 300 grams - 320 grams = -20 grams
20 grams = 1 × standard deviation
For 300 grams, the empirical formula that states that:
68% of data falls within 1 standard deviation from the mean - that means between μ - σ and μ + σ applies.
It is important to note that the percentage of values below the mean and above the mean must be the same.
But since this is a bell shaped distribution, the percentage of data between 300 and 320 grams = 68%/2
= 34%
x - mean = 360 grams - 320 grams = 40 grams
40 = 2 × standard deviation
For 360 grams , the empirical formula that states that,
95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ applies
It is important to note that the percentage of values below the mean and above the mean must be the same.
Since this is a bell shaped distribution, the percentage between 320 and 360grams = 95%/2
= 47.5%
Therefore, the percentage of organs that weighs between 300 grams - 360 grams = 34% + 47.5%
= 81.5%
Which equation has a solution of k = 6.5?
A. -3k = 19.5
B. -1 + k = 7.5
C. -7k = -45.5
D. -2 + k = -8.5
Answer: 7.5
Step-by-step explanation:
Write an equation in slope-intercept form for the line parallel to y= 9x+2 that passes through the point (-2,8). Show your work. Thank you :)
Answer: y=9x + 26
Step-by-step explanation:
Notice that for two lines to be parallel they must have the same slopes but different y intercept.
So the equation y =9x + 2 has a slope of 9 and y-intercept of 2 so using the points we can determine the y intercept of the line parallel to it to find the.
Using the slope intercept form formula which is y = mx + b we can plot in the slope and the given coordinates to solve for b.
The coordinate is (-2,8) which the y value is 8 and the x value is -2
so 8 = 9(-2) +b solve for b
8 = -18 + b
+18 +18
b = 26
The y intercept is 26 so the equation will be y=9x + 26
A rock climber averages 8 feet per minute. How many feet does the climber climb in 1 hour and 15 minutes?
Answer:
600 feet.
Step-by-step explanation:
1 hour and 15 minutes is equal to 75 minutes.
Therefore,
8 times 75 equals 600 feet.
Mae has $189 in her account. A $7 fee is charged each month the balance is below $750.She withdraw $315. If she makes no deposits or withdraws for the next x months express her balance algebraically
Answer:
$189 - $315 - $7x
Step-by-step explanation:
Given the following :
Amount in Mae's account = $189
Each month balance is below $750;
Amount charged = $7
She withdrew $315 from her account and makes no deposit or withdrawal for the next x months
Her balance :
Initial amount = $189
Withdrawal made = $315
Amount charged when balance falls below $750 = fee * number of months = 7 * x = 7x
Hence, her balance after x months will be :
$189 - $315 - $7x
The balance of Mae expressed algebraically will be 189 - 315 - 7x.
The following can be deduced from the question:
Amount in Mae's account = $189Each month balance is below $750Amount charged = $7Therefore, the amount that is left in her account balance will be:
= 189 - 315 - (7 × x)
= 189 - 315 - 7x
Read related link on:
https://brainly.com/question/25783892
Graph y = 3/5 x - 4.
Then, translate it up 5 units.
Write the equation of the resulting line.
Answer:
y=3/5x + 1
Step-by-step explanation:
It says to translate UP 5 units, meaning the constant of -4 is the one being affected. The translation of 5 units is +5 on the graph, so -4+5=1. Everything else should be the same if i'm correct so y=3/5x + 1 is the answer
Duval scored 10 more than 2 times the number of points scored by a
player, x. Which equation shows the number of points, y, Duval scored?
Answer:
2x + 10 = y
Step-by-step explanation:
The term 10 more is plus 10, and 2 times the "number" which we know we can label as "x". 2x + 10 is the equation and we are told that y is the number of points so 2x + 10 = y is the answer.
Hope that helps, and have a great day!