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2 years ago

Writing Algebraic Expressions the product of 3 and X

Mathematics

1 answer:

Vlada [557]2 years ago

7 0

Step-by-step explanation:

$3 \times x$

$3x$

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Answer is 148,847,750

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3 years ago

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For Christmas your boss gives you a $1,500 bonus. You were not expecting the money, so you decide you want to invest it. What ki

mel-nik [20]

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Savings

Step-by-step explanation:

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3 years ago

If john makes a contribution to a charity fund at school, the average contribution size will increase by 50% reaching $75 per pe

Sonja [21]

Answer:

$Z= 75*6 -250=200$

So then the correct answer is B. $200.

Step-by-step explanation:

Notation

Let X be the average contribution size before John makes his contribution.

Let Y be the total contribution size before John makes his contribution.

Let Z be John's contribution.

We know that for this case $ 75 represent the original average amount before the contribution with 50% increase so we can set up the following equation in order to find the original average amount

$1.5 X = 75$

And solvong for X we got:

$X = \frac{75}{1.5}= 50$

Now we can find the total contribution before the donation with the following proportion:

$\frac{50}{1}= \frac{Y}{5}$

$Y = 250$

And then with the formula of average taking in count the 6 values we can find the size of donation Z like this:

$\frac{Y+Z}{6}= 75$

$\frac{250+Z}{6}= 75$

$Z= 75*6 -250=200$

So then the correct answer is B. $200.

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3 years ago

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Dafna1 [17]

Answer:

3\2 is her walking rate I think but sure

Step-by-step explanation:

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If Maya and Amy had the same number of puzzles to solve, who would finish first?

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