2 years ago

When seven is subtracted from half of a number, the result is negative three. Find the number

Mathematics

1 answer:

Harlamova29_29 [7]2 years ago

5 0

Answer:

Step-by-step explanation:

0.5x-7=3

add 7 to both sides

0.5x=4

multiply both sides by 2

x=8

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IrinaK [193]

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The area of a square is 9/16 in2. What is the perimeter of the square

Alekssandra [29.7K]

Answer:

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Step-by-step explanation:

The fraction 9/16 is equal to the equation 9 ÷ 16.

9 ÷ 16 = 0.5652

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$\sqrt{0.5652} = 0.75$

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o-na [289]

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Step-by-step explanation:

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2 years ago

John took 3 exams so far this semester. He scored 45, 65 and 80 on those 3 exams . What score does he need on the fourth exam to

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Answer:

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Step-by-step explanation:

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