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pishuonlain [190]
3 years ago
6

Please help due in 5m! and 30 points

Mathematics
2 answers:
Elenna [48]3 years ago
7 0
B) 21a+17b is the answer
Paraphin [41]3 years ago
3 0
9a+9b+12a+8b=21a+17b so answer is B)21a+17b
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The output of a function is 10 more than 4 times the input. find the input when the output is -26
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-9 because-26 minus 10 is -36 and -36 divided by 4 is -9

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Susan worked 5 out of 8 hours during the day what percentage of the day does she work
Aleksandr-060686 [28]
5/8 * 125/125 = 625/1,000 = 0.625
62.5 percent
Solution: 62.5%
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3 years ago
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Original grade: 80<br> New grade: 100<br> Find the percent of increase.<br> 107
Kipish [7]

Step-by-step explanation:

Based on the given conditions,

Formulate:(100-80)÷80

Calculate the sum or difference:20/80

Cross out the common factor:1/4

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Write as a single fraction :25/4×25

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3 years ago
There are 36 carpenters in a crew. On a certain day, 29 were present. What percent showed up for work? (Round to nearest tenth)
andreyandreev [35.5K]
To get this, We will need to divide 29 by 36.

29/36=.80555556

This means that about 80.5% Showed up for work. 
6 0
4 years ago
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A manager is comparing the cost of buying ball caps with the team emblem from two different companies. Company X charges a $50 f
Nady [450]

Answer:

10 ball caps

Step-by-step explanation:

In this question, we are trying to know the number of caps the manger would buy that would equate the cost at both companies.

How do we get this?

Since we do not know the number of caps, let’s assign a variable. Let the number of caps that is required be x. Let’s now make some costings in terms of x. We proceed;

Company X charges $50 fee plus $7 per cap. Total amount company X will charge on x caps will be; $50 + $7(x) = $50 + $7x

Company Y will charge $30 plus $9 per cap. Total amount company Y will charge on x caps will be $30 + $9(x) = $30 + $9x

We are trying to look at the value of x that will make both costs equal. What we do is to equate both costs.

30 + 9x = 50 + 7x

We simply by taking like terms to the same sides

9x-7x = 50-30

2x = 20

x = 20/2 = 10

X = 10

So what this means is that manger has to buy 10 caps to have the same cost in both companies

3 0
3 years ago
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