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2 years ago

The difference: 7 7/8 - 3 1/4=?*

Mathematics

1 answer:

Annette [7]2 years ago

3 0

You do 8* 7 = 56 + 7 = 63/8
You do 4*3 = 12 + 1 = 13/4

63/8 - 13/4 = 37/8
does this help

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Shelly spent 10 mintues jogging and 20 mintues cycling and burned 300 calories. The next day, shelly swapped times and did 20 mi

ratelena [41]

She burned 30 calories for each minute of jogging and 15 calories for each minute of cycling because 300 divided by 10 is 30 and 300 divided by 20 is 15

6 0

2 years ago

A prism with a triangular base has a volume of 432 cubic feet. The height of the prism is 8

Rashid [163]

Answer:

9 feet

Step-by-step explanation:

Given:

A prism with a triangular base has a volume of 432 cubic feet.

The height of the prism is 8.

The triangle base has a base of 12 feet.

Question asked:

The height of the triangular base of the prism = ?

solution:

Volume of triangular prism = $Area of triangle \times height$

$432 = Area of triangle \times8$

Dividing both side by 8

$54 = Area of triangle$

$54 =$ $\frac{1}{2} \times base \times height$

$54 = \frac{1}{2} \times12\times height\\54 = \frac{12}{2} \times height$

Multiplying both side by 2

$108 = 12 \times height$

Dividing both side by 12

$9 = height$

Thus, height of the triangular base of the prism is 9

3 0

2 years ago

Find the average rate of change of the function from <img src="https://tex.z-dn.net/?f=x_%7B1%7D" id="TexFormula1" title="x_{1}"

meriva

Hi there!

$\large\boxed{\text{Average rate} = 2}$

Use the following equation to solve:

$\text{Average rate} = \frac{f(x_{2}) - f(x_{1})}{x_{2} - x_{1}}$

Solve for the y-values of the equation at the given x values:

f(1) = 1² - 4(1) + 10 = 7

f(5) = 5² - 4(5) + 10 = 15

Plug the solved values into the equation:

$\text{Average rate} = \frac{15 - 7}{5-1}$

Simplify:

$\text{Average rate} = \frac{8}{4} = 2$

6 0

2 years ago

Ashton is depositing money into a checking account. After 3 months there is $120 in the account. After 6 months, there is $240 i

Talja [164]

The constant rate of change of the account is $40 or Increasing by $40 per month.

Step-by-step explanation:

Consider the provided information.

Joanne is depositing money into a bank account. After 3 months there is $120 in the account. After 6 months there is $240 in the account.

Rate of change is known as how one quantity change in relation to other.

The rate of change can be calculated as:

y2-y1/x2-x1

Now use the above formula to calculated the rate of change.

240 - 120/6-3

120/3

Hence, the constant rate of change of the account is $40 or Increasing by $40 per month.

8 0

2 years ago

If $18\sqrt 8-8\sqrt{18}=\sqrt n$, what is $n$?

Hunter-Best [27]

Answer:

Step-by-step explanation:

$18\sqrt{8}-8\sqrt{18}=\sqrt{n}\\ \\ 36\sqrt{2}-24\sqrt{2}=\sqrt{n}\\ \\ 12\sqrt{2}=\sqrt{n}\\ \\ \sqrt{288}=\sqrt{n}\\ \\ n=288$

3 0

2 years ago

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