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motikmotik
3 years ago
5

For 9x + 25 = 88, Deena wrote a situation “I bought some shirts at the store for $9 each and received a $25 discount. My total w

as $88. How many shirts did I buy?”
c. How could you rewrite the situation to make it fit the equation?
Mathematics
1 answer:
aliina [53]3 years ago
6 0

Answer:

She bought 7 shirts

88 kids were going on a field trip. Each car could hold 9 kids, and 25 kids decided to ride the bus. How many cars were needed?

Step-by-step explanation:

9x=63

x=7

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26x+6

Step-by-step explanation:

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An item that was selling for $72.00 is reduced to 60.00. Find the percent decrease in price. Round your answer to the nearest te
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3 years ago
You have some money in your wallet. You don't know the exact amount, but you think you have 60 dollars give or take 15 dollars.
Karolina [17]

Answer:

The least amount is 75 dollars.

The biggest amount is 125 dollars

Step-by-step explanation:

The absolute value function will help us determine a  range of possible values since we do not know the exact amount of money.

Defining the function.

Let x be the exact amount of money in my pocket, we can define the equation

And we know that the difference between the exact amount of money with 100 dollars must be either 25 dollars more than what we estimated, or 25 dollars less than the estimation.  So we can write:

We have a difference inside an absolute value, since we know the difference must be either +25 or -25.

Solving for x

Using the definition of absolute value we have

So if the inside of the absolute value is positive we have the first line of the piece-wise function, that is

Solving for x give us

If the inside of the absolute value is negative we have to use the second line of the piece-wise function definition

Solving for x give us

So the least amount of money in my pocket is 75 dollars and the biggest amount is 125 dollars.

6 0
2 years ago
When is a protractor preferred to a ruler when finding a measurement
Keith_Richards [23]
When measuring an angle.
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3 years ago
Write the expanded form for this expression <br><br> -1/2(y - x)
grin007 [14]

Answer:  =-1/2x+-1/2y

Step-by-step explanation:

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2 years ago
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