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3 years ago

What is x+8=(-5) and how do expan it

Mathematics

1 answer:

aalyn [17]3 years ago

8 0

Answer:

X= -13

Step-by-step explanation:

The goal is to get x by itself!

Rule of thumb: whatever you do to the left, you MUST do to the right

Step 1: Subtract 8 from the left side of the equation (the = sign)

x + 8 = (-5)

- 8 --> this gets x by itself

Step 2: Subtract 8 from (-5) on the right side (because you did it on the left

x = (-5)

- 8

*note: x is now by itself*

Step 3: Solve!

x = (-5) - 8 -13

x = -13

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The value of 9−y is twice the value of y. What is the value of y?

ElenaW [278]

Answer:

y = 3

Step-by-step explanation:

9 - y = 2y

Step 1: Add y to both sides

9 - y + y = 2y + y

9 = 3y

Step 2: Divide both sides by 3

9 / 3 = 3y / 3

3 = y

Answer: y = 3

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3 years ago

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2 years ago

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3 years ago

Roberto has $200 in spending money. He wants to buy some video games that cost $25.50 each. Write and solve an inequality to fin

solniwko [45]

Answer:

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Step-by-step explanation:

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3 years ago

According to the United States Census Bureau, on September 11, 2014, the population of the United States was increasing by 11 pe

Papessa [141]

Answer:

317,988,000

Step-by-step explanation:

We have been given that according to the United States Census Bureau, on September 11, 2014, the population of the United States was increasing by 11 people every 12 seconds.

Let us find number of people increased in 1 minute as:

$11\times \frac{60}{12}=11\times 5 =55$

Now, we will convert 11 years into minutes and multiply by 55 to find increase in population in 11 years.

$\text{11 years}=11\text{ years}\times \frac{365\text{ days}}{\text{year}}\times \frac{24\text{ hours}}{\text{days}}\times \frac{60\text{ min}}{\text{hour}}$