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kari74 [83]
4 years ago
5

Benecio worked 40 hours at his two jobs last week. He earned $20 per hour at his weekday job and $18 per hour at his weekend job

. He earned $770 in all. How many hours did he work at each job?
Mathematics
1 answer:
gavmur [86]4 years ago
3 0
Set up the following equations:

x + y = 40
20x + 18y = 770

x is the amount of hours worked on the weekday job, and y is the amount of hours worked on the weekend job.

We'll use substitution to remove one of the variables.

Multiply the first equation by -18 to get opposite coefficients for y:

-18x - 18y = -720

20x + 18y = 770

Combine these two equations together:

2x = 50

Divide both sides by 2 to get x by itself:

x = 25

Plug in x to the first original equation:

25 + y = 40

Subtract 25 from both sides to get y by itself:

y = 15

He worked 25 hours at his weekday job, and 15 hours at his weekend job.


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A waitress works 1.75 hours less in the afternoon than in the evening. If she works 5      1/8
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Let x be the number of hours that the waitress works in the evening.

We know for our problem that she works 5 \frac{1}{8} in the afternoon and that she works <span>1.75 hours less in the afternoon than in the evening, so:
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4 years ago
Many credit card companies charge a compound interest rate of 1.8% per month on a credit card balance. Miriam owes $650 on a cre
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<u>The correct answer is D. 650.oo, 661.70, 673.61, 685.74, 698.08</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Compound interest rate charged by Miriam's credit card company = 1.8% monthly

2. If she makes no purchases or payments, she will go more and more in debt.  Which of the following sequences describes her increasing monthly balance?​

Miriam's current credit card balance = US$ 650

Miriam's credit card balance in one month = 650 * 1.018

Miriam's credit card balance in one month = 661.70

Miriam's credit card balance in two months = 661.70 * 1.018

Miriam's credit card balance in two months = 673.61

Miriam's credit card balance in three months = 673.61 * 1.018

Miriam's credit card balance in three months = 685.74

Miriam's credit card balance in four months = 685.74 * 1.018

Miriam's credit card balance in four months = 698.08

<u>The correct answer is D. 650.oo, 661.70, 673.61, 685.74, 698.08</u>

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3 years ago
In the decimal 55.555, which is 1/10 the value of the 5 in the tenths place?
inna [77]

Answer:

  55.555

Step-by-step explanation:

1/10 × 1/10 = 1/100

The value in the hundredths place is 1/10 the value in the tenths place.

  55.555

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