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3 years ago

If Joe works eight hours per week at $10.75 an hour, how much will he make in one month?

Mathematics

2 answers:

Serjik [45]3 years ago

7 0

$10.75 x 8 = $86 x 4(weeks) = $344

likoan [24]3 years ago

3 0

Multiply his hourly rate by the number of hours per week:

$10.75 x 8 hours = $86.00 per week.

An average month has 4 weeks, so in a 4 week month, multiply his weekly pay by the number of weeks in a month. ( Some months have 5 weeks, so you would need to multiply the weekly amount by 5 weeks).

$86 x 4 weeks = $344

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3 years ago

Need help with 21-23 you suppose to simplify the expression

lora16 [44]

To solve these problems, we must remember the distributive property. This property states that a coefficient being multiplied by a polynomial in parentheses is equal to the sum of the coefficient times each of the separate terms. Using this knowledge, let's begin with number 21:

-(4x + 17) + 3(7-x)

To begin, we should distribute the negative sign through the first set of parentheses and the coefficient of positive 3 through the second set of parentheses.

-4x - 17 + 21 - 3x

Next, we must combine like terms, or add/subtract the constants terms and the variable terms in order to create a more concise expression.

-7x + 4 (your answer)

Now, we can move on to question 22 and solve it in a similar manner:

7(2n-8) - 4(12 - 8n)

Again, we will distribute the coefficients through the parentheses. However, keep in mind that the coefficient in front of the second set of parentheses is actually a NEGATIVE 4, so we must distribute the negative as well.

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Next, we will combine like terms (add the n terms together and subtract the constant terms).

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Now, we can solve problem 23:

8 + 2(5f - 3)

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Combine like terms after that:

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Therefore, your answers for the three problems are as follows:

21) -7x + 4

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Hope this helps!

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2 years ago