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2 years ago

10 pounds of dog food.he feeds his dog 2/5 pounds

Mathematics

2 answers:

guajiro [1.7K]2 years ago

6 0

Answer:

He fed his dog 4 pounds of dog food

2/5 = 40%

40% x 10 = 4

Step-by-step explanation:

ANEK [815]2 years ago

3 0

Answer:

I'm guessing this is a "How much is left" situation, so this is 9.6 Pounds left over!

Step-by-step explanation:

There's nothing to explain.

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51 in^2

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2 years ago

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Helga [31]

Answer:

C. The product of 12 and √17

Step-by-step explanation:

Because it gives a number that isn't a repeating or terminating decimal.

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3 years ago

Please help me with algebra part B and C. attachment below. Will mark as brainslist. 25 points.

miv72 [106K]

Answer:

C. $(-7x+60)(x+4)$

Step-by-step explanation:

Consider the expression $-7x^2+32x+240.$

First, note that

$a=-7\\ \\b=32\\ \\c=240$

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$D=b^2-4ac=32^2-4\cdot (-7)\cdot 240=1,024+6,720=7,744\\ \\\sqrt{D}=\sqrt{7,744}=88$

Now,

$x_1=\dfrac{-b+\sqrt{D}}{2a}=\dfrac{-32+88}{2\cdot (-7)}=-4\\ \\x_2=\dfrac{-b-\sqrt{D}}{2a}=\dfrac{-32-88}{2\cdot (-7)}=\dfrac{60}{7}$

Write the factored form:

$-7x^2+32x+240=-7(x-(-4))\left(x-\dfrac{60}{7}\right)=(x+4)(-7x+60)$

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3 years ago

A fencing company charges $22 per foot to install a wood fence. How much will it cost to install a wood fence around a rectangul

borishaifa [10]

20+20+38+38=116

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3 years ago

The after school craft center has 15 boxes of 64 crayons each. In 12 of the boxes , 28 of the crayons have not been used. All th

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The <em><u>correct answer</u></em> is:

624 crayons.

Explanation:

In 12 of the boxes, 28 crayons have not been used; this leaves 64-28=36 crayons that have been used. 12(36) = 432 crayons have been used in these boxes.

3 full boxes have been used; this is 3(64) = 192 crayons.

Together this makes 432+192 = 624 crayons that have been used.

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3 years ago

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