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3 years ago

14

Explain how you could use the distributive property to find how many gallons of water are pumped out of the black hole in 2 1/2

minutes

1 answer:

Otrada [13]3 years ago

6 0

Answer:

by counting the numbers

Step-by-step explanation:

1 + 1 + 1 + 1 + 1 etc

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Write an expression to represent the side length of a square in terms of the square's perimeter,

Likurg_2 [28]

Answer: p/4

Step-by-step explanation: you divide the whole perimeter by 4 because a square has 4 sides

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3 years ago

There are 12 books on a shelf 5 of these books are new the rest are used what is the ratio of new books to used books

tiny-mole [99]

Answer:

5:7

Step-by-step explanation:

Basically you first find the amount of the books are the shelf knowing that you have 5 new books, you subtract the amount of new books from total books. And 5:7 can't be simplified any further making 5:7 the answer.

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3 years ago

Read 2 more answers

All of the following are true statements except _____.

shutvik [7]

$\qquad \qquad\huge \underline{\boxed{\sf Answer}}$

The false (wrong) equation among them is : A

$\qquad \sf \dashrightarrow \: | - 93| = - 93$

Because any number in a modulus comes out to be positive.

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2 years ago

An ice cube is melting, and the lengths of its sides are decreasing at a rate of 0.8 millimeters per minute At what rate is the

julia-pushkina [17]

Answer:

The rate of decrease is: $43.2mm^3/min$

Step-by-step explanation:

Given

$l = 18mm$

$\frac{dl}{dt} = -0.8mm/min$ ---- We used minus because the rate is decreasing

Required

Rate of decrease when: $l = 18mm$

The volume of the cube is:

$V = l^3$

Differentiate

$\frac{dV}{dl} = 3l^2$

Make dV the subject

$dV = 3l^2 \cdot dl$

Divide both sides by dt

$\frac{dV}{dt} = 3l^2 \cdot \frac{dl}{dt}$

Given that: $l = 18mm$ and $\frac{dl}{dt} = -0.8mm/min$

$\frac{dV}{dt} = 3 * (18mm)^2 * (-0.8mm/min)$

$\frac{dV}{dt} = 3 * 18 *-0.8mm^3/min$

$\frac{dV}{dt} = -43.2mm^3/min$

<em>Hence, the rate of decrease is: 43.2mm^3/min</em>

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3 years ago

if los angeles county wants to know what percent of its citizens have children who are in school readiness support, which method

Montano1993 [528]

Going downtown Because you can easily count

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3 years ago