Mathematics High School

LOTS OF POINTS!!! HELP WITH 7 ANd EXPLAIN!!

LOTS OF POINTS!!! HELP WITH 7 ANd EXPLAIN!!

Answers

Answer 1

Answer:

w=4

Step-by-step explanation:

The surface area of a prism is SA= 2lw+2lh+2hw

We are trying to find out the width if the SA is 240 square inches, length is 12 inches, and the height is 5 inches. Let's plug these numbers into the equation.

240=(2*12*w)+(2*12*5)+(2*5*w)

          24w+120+10w

240= 34w+120

-120           -120

120= 34w

120/34 = 34w/34

w is approximately equal to 3.5 which can be rounded to 4

w=4

Hope this is right! It was confusing at first but I understood it!

Related Questions

Susan buys a new computer 1200 dollars.Sales tax is 11%. How much does Susan actually have to pay?

Answers

Start by finding 11% of 1,200. To do so, multiply .11 by 1,200 to get 132. Add 132 to 1,200 to get 1,332.

In short, Susan has to pay *$1,332*

The amount that Susan actually have to pay should be considered as the $1,332.

Calculation of the amount:

Since the purchase price of the computer is $1,200

And, the sales tax rate is 11%

So here the total amount be like

= $1,200 + 11% of $1,200

= $1,200 + $132

= $1,332

hence, The amount that Susan actually have to pay should be considered as the $1,332.

Learn more about sales tax here: https://brainly.com/question/24422578

Jocelyn bought 18 chicken wings for $9. What was the cost of the wings in wings per
dollar?

Answers

18 wings = 9$
divide by eighteen
1 wing = 1/2 $

1/2 $ = 0.5 $

answer is 0.5 $ or 50 c per wing

Answer:

Step-by-step explanation: 18 wings = 9$

divide by eighteen

1 wing = 1/2 $

1/2 $ = 0.5 $

answer is 0.5 $ or 50 c per wing

How do you solve this equation? x/2 - x = x/4 + 6

Answers

Answer:

x= - 8

Step-by-step explanation:

multiply both sides by 4 to get rid of the fractions. you should then get:

2x-4x=x+24

then get all the x terms to one side by subtracting by x on each side:

2x-4x-x=24

then simplify:

-3x=24

divide by -3 on each side:

x= - 8

the sum of two nubers is 20. the difference between three times the first number and twice the sencond is 40. find the two numbers.​

Answers

16 and 4 are the two numbers.

Find the midpoint of the line segment joining the points (-1,-1) and (-3,12)
The midpoint is a
(Simplify your answer. Type an ordered pair.)

Answers

Answer:

(−2, 11/2)

Step-by-step explanation:

the answer is (-2, 11/2)

hurry i only got 15 min

Answers

1st option
-2 is -1 + -1
3= +1+1+1

Answer:

Its the A

first

Step-by-step explanation:

3 is positive ( + )

2 is Negative ( - )

Evaluate the numerical expression:
(-⅓)-(-⅖)=?​

Answers

Answer:

1/15

Step-by-step explanation:

Answer:

1/15

Step-by-step explanation:

Lets simplify, since we need to account for the double negative:

-1/3 + 2/5 = 1/15

Help with this one pleaseee

Answers

Answer:

??

Step-by-step explanation:

Tan= opposite/adjacent
So the Tanr = 35/12.

please help its ok if you dont know this

Answers

Answer:

11/8

Step-by-step explanation:

Answer:

11/8

Step-by-step explanation:

What is (5+3i) - (2-8i) give your answer in standard form

Answers

Answer:

5+3i-2+8i

(5-2)+(3+8)i

3+11i

emily is thinking of a number which she calls n she finds 1/4 of the number and then subtracts by 3

Answers

Answer:

the answer is y=1/4n-3

Harriet’s goal is to weigh no more than 140 pounds. If x represents weight, write and inequality that describes her goal weight.

Answers

Answer:

x≤140

Step-by-step explanation:

Josie went to the local hairstylist to get her hair cut. It cost $34 for the haircut. Josie tipped the hairdresser 20%. What was the total amount Josie paid? Round to nearest cent.

Answers

Answer:

$40.80 is the answer

A ball falls from a window. Its height, as a function of time, is modeled by
y=-4.9x^2 + 12
Which statement best describes the function?

A. The function is nonlinear
B. The function is linear at some points and nonlinear at other points.
C. Not enough information is given to decide,
D. The function is linear

Answers

Answer: A

Step-by-step explanation:

a sphere of volume 4851 cm cube then what is the diameter?​

Answers

Answer:

21 cm

Step-by-step explanation:

V = (4/3)(pi)r^3

(4/3)(3.14)(r^3) = 4851 cm^3

r^3 = 1158.1 cm^3

r = 10.5 cm

d = 2r = 2(10.5 cm) = 21 cm

a sequence of transformations is used to map triangle RST onto triangle LMN please help

Answers

Answer:

The answer would be 70

Step-by-step explanation:

All of the interior angles of a triangle equate to 180.

If an angle is half of its complement, then the measure of the LARGER angle will be

Answers

Answer:

60°

Step-by-step explanation:

Complementary angles sum 90°

a + b = 90°      Eq. 1

b = a/2             Eq. 2

Replacing Eq. 2 in the Eq. 1

a + a/2 = 90

2a/2 + a/2 = 90

3a/2 = 90

a = 90*2/3

a = 60

from the Eq. 2

b = 60/2

b = 30

Check:

from the Eq. 1

60 + 30 = 90

Answer:

60>30

Then

The larger angle is:

60°

What is the difference between a repeating decimal and a terminating decimal

Answers

Answer:

Terminating decimals don't have a continuation of  the same digits after the decimal point. Recurring decimals have one or more repeating numbers or sequences of numbers after the decimal point, which continue's forever.

Step-by-step explanation:

how many solutions does a dependent system of equations have?

Answers

A dependent system of equations has infinite simultaneous solutions

Nora loves to play the Bridge Builders video game, where players gain and lose points by
building safe and unsafe bridges. In Level 1, Nora earned 16 points because her bridge
passed inspection. Then, she lost 25 points because part of her bridge collapsed!

Answers

Answer: Its -9

Step-by-step explanation:

because 16 - 25 = -9

What corresponds to the graph below?

Answers

Answer:

Step-by-step explanation:

Can you redo the picture

What is the slope.of (2,4) and (5,9)

Answers

The slope of (2,4) (5,9) is 1.66667



Nicolas is setting up water stations for a 10-mile run. He already has the first one set up 8 miles from the starting line. He needs to set up two more that are 1.5 miles on either side of the first water station. Where will he put the two additional water stations?

A number line divided into increments of 1 and labeled 0 through 10. The number 8 is labeled with Nicolas.

The absolute value equation that models this situation is |x –
|=

.

The two additional water stations will be
and

miles from the starting line.

Answers

Answer:

Step-by-step explanation:

The two additional water stations will be 6.5 miles  and 9.5  miles away from the starting line.

Given Nicolas is setting up 3 water stations for a 10-mile run.

He already has the first one set up 8 miles from the starting line. He wants to set up two more that are 1.5 miles on both side of the first water station.

We have to calculate the distance of 2 other water station from starting point.

Now A number line divided into increments of 1 and labeled 0 through 10. The number 8 is labeled with Nicolas.

The absolute value equation that models this situation is |x –8 |=1.5

The two additional water stations will be (8-1.5) miles or 6.5 miles and other will be (8+1.5) or 9.5 miles away from the starting line.

The two additional water stations will be 6.5 miles  and 9.5  miles away from the starting line.

For more details on number line follow the link:

https://brainly.com/question/557284

3/4x + 2/5 = 4x - 1/4x

Answers

Answer: x=2/15

Ya I think so.

Answer:

4/45 = x

Step-by-step explanation:

Strongly suggest that you enclose the fractional coefficients inside parentheses to reduce possible ambiguity:

(3/4)x + 2/5 = 4x - (1/4)x

Consolidate the x terms on the right side and leave the 2/5 on the left:

2/5 = (4 - 1/4 + 3/4)x, or

2/5 = (4 1/2)x   or 2/5 = (9/2)x

Solving for x:  Multiply both sides by (2/9):

(2/9)(2/5) = (2/9)(9/2)x, or:

4/45 = x

Note:  please include ALL instructions.

Does anyone know the answer to both of these questions??

Answers

The first one is m= -5 (D)
The second one is x= -3 (A)

FR I NEED HELP IM SERIOUSLY GONNAAA CRYYYYY

Answers

Answer:

point a

Step-by-step explanation:

The growth of 7 different plants was recorded in centimeters. What type of graph would be best for comparing the growth of each plant

Answers

Answer:

Bar graph, would probably be your best bet. Hope this helps!

Alex eats 5/6 of a pizza. His father eats 1 1/5 times as much pizza as Alex. How much of the pizza does Alex's father eat? ASAP!!!!!!!!!!!

Answers

Answer:

1 pizza

Step-by-step explanation:

(5/6) × (1 1/5) = 1

Jenny is making tie dyed shirts for her class with her school colors, blue and yellow she used a total of 8 ounces of fabric paint the amount of blue paint is 3 times the amount of yellow make a diagram to show the ratio of blue to yellow paint

Answers

Answer:

The ratio of blue paint to yellow paint is 3:1

Step-by-step explanation:

Let

x -----> the amount of blue paint in ounces

y ----> the amount of yellow paint in ounces

we know that

x+y=8 -----> equation A

x=3y -----> equation B

Solve the system by substitution

Substitute equation B in equation A

3y + y = 8

4y = 8

y = 2

Find the value of x

x = 3(2) = 6

therefore

The amount of blue paint is 6 ounces and the amount of yellow paint is 2 ounces

Find the ratio

To find out the ratio of blue paint to yellow paint, divide the amount of blue paint by the amount of yellow paint

x/y = 6/2 = 3/1

That means -----> Of every 4 parts of paint, three parts are blue and one part is yellow.

What number makes the equation true? Enter the answer in the box. + 6 = 7​

Answers

Answer:

1

Step-by-step explanation:

1 + 6 = 7

Answer:

1+6=7

Step-by-step explanation:

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