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julsineya [31]
3 years ago
8

Mary pumped 7 gallons of water out of her pool each minute for 63 minutes. What was the total change in the amount of water in t

he pool?
Mathematics
2 answers:
Marina CMI [18]3 years ago
6 0

Answer:

The pool has lost 441 gallons of water

Step-by-step explanation:

Multiply 7 (gallons last per minute) to 63 (the total amount of minutes) and you will get 441 gallons lost in total.

ruslelena [56]3 years ago
5 0

Answer:

The amount of water is 30 gallons a minute

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Write as a product of two polynomials:<br> (x-y)^2-a(y-x)
sattari [20]

Answer:

(x - y)(x - y + a)

Step-by-step explanation:

(x-y)^2-a(y-x) \\  \\  = (x-y)^2 + a(x - y) \\  \\ =  (x - y) \{(x - y) + a \} \\  \\ =  (x - y)(x - y + a)

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3 years ago
What would be the best first step to convert 5x-y=7 to slope intercept form?
xz_007 [3.2K]

Answer:

-5x from both sides

Step-by-step explanation:

When converting an equation to slope-intercept form, you need to isolate the y. The first step in isolating the y is to remove 5x from both sides of the equation:

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5x - 5x - y = 7 - 5x

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Now it's just -1y on one side of the equation.

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3 years ago
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Express 110111 base two to base ten​
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zh

Step-by-step explanation:

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3 years ago
A man sells a type of nut for $7 per pound and a different one for $4.20 per pound, how much of each type should be used to make
qwelly [4]

Answer:

a type nut is 10 pounds

a different one is 14 pounds

Step-by-step explanation:

let a type of the nut be represented by t

Let a different one be represented by d

a type of nut cost $7 per pound

a different one cost $4.20 per pound

The cost of the mixture for 24 pounds = 5.37 * 24

= $128.88

t + d = 24 ........(1)

7t + 4.2d = 128.88 ..........(2)

From equation (1), t = 24 - d

Put t = 24 - d in equation 2

7(24 - d) + 4.2d = 128.88

168 - 7d + 4.2d = 128.88

168 - 2.8d = 128.88

-2.8d = 128.88 - 168

-2.8d = -39.12

d = -39.12 / -2.8

d= 13.97

d = 14 pounds

t = 24 - d

t = 24 - 14

t = 10 pounds

A type nut is 10 pounds. A different one is 14 pounds

5 0
3 years ago
Read 2 more answers
Can square root of 27 be simplified
Studentka2010 [4]
<span>Yes, square root of 27 can be simplified
</span>
\sqrt{27}= \sqrt{9*3}=3 \sqrt{3}


8 0
3 years ago
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