10 months ago

What is the answer to

Mathematics

2 answers:

marta [7]10 months ago

6 0

Answer:

224.50

$0.50

- 50 cents

Yuki888 [10]10 months ago

4 0

Answer:_______________________________________________

-0.5

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If y varies directly as x and y = 21 when x = 5, find x when y = 42.

Lorico [155]

Answer: 10

<u>Step-by-step explanation:</u>

varies directly means: $\frac{y}{x} = k$

Step 1: solve for k ⇒ $\frac{21}{5} = k$

Step 2: plug in the given value and k to solve for the missing value: $\frac{42}{x} = \frac{21}{5}$

42(5) = 21(x)

$\frac{42(5)}{21} = \frac{21(x)}{21}$

2(5) = x

10 = x

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3 years ago

Alenkinab [10]

Answer:

17/5

Step-by-step explanation:

23=5x+6

23-6=5x

17=5x

X=17/5

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2 years ago

What is the volume of a rectangular prism with a length of 4 a width of 6 and a height of 2?

pentagon [3]

Answer: Volume = 48

Step-by-step explanation:

V = L * W * H

V = 4 * 6 * 2

V = 48

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3 years ago

A tiger can eat food that weighs up to 15% of its body weight. If a tiger can eat 75 pounds of food, how much does the tiger wei

Oksanka [162]

He body weight is 5 74 dived by 15 = 5

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3 years ago

Read 2 more answers

Write the expression (−2)·(−2)·7·7·7·7·7 using exponents.

NeTakaya

Answer: $(-2)^{2}*7^{5}$

Step-by-step explanation:

You have to group all of the same one's together and however many there is, you add that number as the exponent.

There were 2 "(-2)" so that became $(-2)^{2}$ , and there were 5 "7" so that became $7^{5}$ . You keep the symbol and put it together which became $(-2)^{2}*7^{5}$

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2 years ago