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3 years ago

9

sierra worked for 38 hours this week and earned $427.50. write and solve an equation determine how much she makes per hour

1 answer:

Kisachek [45]3 years ago

3 0

Answer:

$11.25 an hour

Step-by-step explanation:

427.50=38x

38x=427.5

÷by 38

x=11.25

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The answer is "descriptive statistics".

Step-by-step explanation:

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3 years ago

Midpoint of (1,3) and (4,-5)

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Answer:

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Step-by-step explanation:

To find the midpoint we use the respective formula:

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3 years ago

2/x multiplied by what equals 1

Varvara68 [4.7K]

Answer:

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3 years ago

X,y and z are three consecutive even numbers if y^2 - 2 = 2x + 5Z find x,y and z

Rama09 [41]

Answer:

6, 8, 10

Step-by-step explanation:

x y and z are three consecutive even numbers

it means that you can write y = x + 2

and z = y + 2 = x + 4

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6 0

3 years ago

Read 2 more answers

Choose the correct simplification of 8x2(4x 2x2 − 1). (5 points) group of answer choices 32x4 − 16x3 8x2 32x4 16x3 − 8x2 16x4 −

nekit [7.7K]

The second option is the correct answer

$16x^{4}+40x^{3} -24x^{2}$

The expression given to us is:

$8x^{2} (5x+2x^{2}-3 )$

Herein, we can simplify it by opening up the bracket and multiplying each term inside the bracket by the term which is outside the bracket.

Thus, we get:

$8x^{2} (5x+2x^{2}-3 )=8*5x^{2+1} +8*2x^{2+2}-8*3x^{2}$

$40x^{3} +16x^{4}-24x^{2}$

Rearranging the above expression in descending order of power we get:

$16x^{4}+40x^{3} -24x^{2}$

From the given options we can see this is the second option. Hence the second option is the correct answer.

Learn more about equation here brainly.com/question/14180340

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8 0

2 years ago