Five rational numbers in common fraction forms that are not integers

Answers

Answer 1

Answer: 1 / 2
2 / 3
3 / 4
4 / 5
137 / 792

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What is x + 15 > 3 it'd be a lot of help, thank you
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Which of these numbers is in the solution set of x – 15 = 5? A. 10 B. 3 C. 20 D. –10

2. If y varies inversely as x and
y = 3 when x = 5, find x when y = 2.5

Answers

Answer:

Step-by-step explanation:

From the law of variation,

y <> 1/x, where <> is the constant of proportionality. Therefore

y = k/x where k is a constant

3 = k/5 and k = 15

To find x when y = 2.5(5/2)

Go back to the second equation

y = k/x

5/2 = 15/x

When you cross multiply

5x = 30.

Divide through by 5,

x = 6.

The price per share of Envx stock is dropping at a rate of $1.45 each hour what rational number represents the change in the price per share after 5 hours?

Answers

Answer:

-7.25

Step-by-step explanation:

Given,

The stock is dropping at the rate of $1.45 each hour,

So, the change in price of the stock in one hour = - $1.45,

Thus, the total change of the stock in 5 hours

= 5 × change in 1 hour

= 5 × 1.45

= -$ 7.25

∵ A terminating decimal number is always a rational number ( however it is negative )

i.e. the rational number that represents the change in the price per share after 5 hours is -7.25.

Maybe 7.25 because you may have to multiply I am really not sure but hopefully this helps

A 120-ft long is just 15in on the scale drawing. What is the scale on the scale drawing?

Answers

120/15=8.

What that means is that for every 8 feet, there's 1 inch added to the scale drawing. Good luck!

A bicycle wheel travels about 82 inches in 1 full rotation. What is the diameter of the wheel, to the nearest inch?(use 3.14 for pi)

Answers

$d-diameter\ of\ the\ wheel\n\nd\pi=82\ in\n\n\pi\approx3.14\ then:\n\n3.14d\approx82\ in\ \ \ /:3.14\n\nd\approx(82)/(3.14)\ in\n\nd\approx26.11\ in\n\nd\approx26\ in\leftarrow answer$

Randy is building a cube-shaped doghouse with four faces. He is leaving one face open as a door, and one face open to the ground. The doghouse will be 4 feet long. What is the total surface area of the walls and the top of the doghouse?Be sure to include the formula for surface area.

Show how to modify the forumla for surface area to meet the needs of this problem.

Show all of your work, including your final answer with the correct units

Answers

Total suface area of a cube = $6 a^(2)$ , where a is the length of the cube.
Here, two faces will be left open, which reduces the formula to
total surface area = $4 a^(2)=4(4)^(2)=4* 16=64$ square feet

Question 4
Use the figure below to find the value of x and y