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3 years ago

If the first step in the solution of the equation -9 + x = 5x - 7 is "subtract x," then what would the next step be ?

Mathematics

1 answer:

lutik1710 [3]3 years ago

5 0

Answer:

-1/2=x

Step-by-step explanation:

-9 + x = 5x - 7

-x -x

-9=4x-7

+7 +7

-2=4x

-2/4 =4x/4

-1/2=x

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Area is 96 length is 4x+8 width is x find x

dimulka [17.4K]

Answer

Step-by-step explanation:

The area would be length times width. x(4x+8) =96

4x^2+8x = 96

4x^2+8x-96=0. We need to factor.

It would be factored to (4x-16)(x+6) = 0

x would be -6 (x+6=0)

or x would be 4 (4x-16=0)

Why would the width be negative?!? So the answer is 4

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3 years ago

You have 23 1/2 pounds of blueberries to store in freezer bags. Each bag holds 3 3/4 pounds of blueberries. What is the minimum

monitta

Answer:

The minimum number of freezer bags needed to store all the blueberries is 7

Step-by-step explanation:

we know that

To find out the number of freezer bags needed , divide the total pounds of blueberries by 3 3/4, but first convert mixed number to an improper fraction

$23\frac{1}{2}\ lb=\frac{23*2+1}{2}=\frac{47}{2}\ lb$

$3\frac{3}{4}\ lb=\frac{3*4+3}{4}=\frac{15}{4}\ lb$

$\frac{47}{2}:\frac{15}{4}=\frac{47*4}{2*15} =\frac{94}{15}=6.3\ bags$

Round up

7 bags

therefore

The minimum number of freezer bags needed to store all the blueberries is 7

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3 years ago

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Reptile [31]

Answer:

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Step-by-step explanation:

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3 years ago

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Eva8 [605]

From my notes I’ve the derivative of arctan(x)= 1/(1+x^2)

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3 years ago

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4 years ago

Read 2 more answers