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weeeeeb [17]
3 years ago
7

7th grade MATH.... PLEASE HELP ASAP!!!!

Mathematics
1 answer:
JulsSmile [24]3 years ago
3 0

Answer:

7 times 1/5

Step-by-step explanation:

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9. During the past week, Mr. Hamilton gave one quiz and one exam to his high school algebra class.
Kamila [148]

<em>Missing Information:</em>

<em>It takes Mr. Hamilton 1/15  of an hour to grade one student’s exam and 1/30  of an hour to grade one  student’s quiz.</em>

Answer:

Total\ Time = \frac{x}{10}

Step-by-step explanation:

Given

Exam = \frac{1}{15}hr

Quiz = \frac{1}{30}hr

Required

Determine the time spent on x students

First, we need to determine the total time spent on 1 student

Time = Exam + Quiz

Time = \frac{1}{15} + \frac{1}{30}

Take LCM

Time = \frac{2 + 1}{30}

Time = \frac{3}{30}

Time = \frac{1}{10}

Next is to determine the total time on x students:

Total\ Time = \frac{1}{10} * x

Total\ Time = \frac{x}{10}

6 0
3 years ago
Using f for the number of friends. Write an expression to represent how much Jack and Jenn will spend on breakfast if everyone g
antoniya [11.8K]

Answer:

$1.25f + $0.75f

Step-by-step explanation:

The cost of one bagel is $1.25 and cream cheese costs $0.75 per person. The total amount Jack and Jenn will spend on breakfast depends on the number of friends that eat breakfast.

to get the total amount spent on breakfast, multiply the cost of bagel by the number of friends and the cost of cream cheese by the number of friends. Add these numbers

The total amount spent on food = $1.25f + $0.75f

5 0
3 years ago
A tire shop had to fill 2 1/2 tires with air. It took a small air compressor 2 1/2 seconds to fill them up. How long would it to
aivan3 [116]

Answer:

2 1.2unit2 times 8

Step-by-step explanation:

8 0
3 years ago
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alex41 [277]

Answer:

.03472

Step-by-step explanation:

take sell price $20. subtract cost of 11.32 which equals 8.68. then divide 8.68 by the sell price $20

The formula for contribution margin is the sales price of a product minus its variable costs. In other words, calculating the contribution margin determines the sales amount left over after adjusting for the variable costs of selling additional products.

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3 years ago
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Is there a series of rigid transformations that could map ΔQRS to ΔABC? If so, which transformations could be used?
PtichkaEL [24]
Δ<span>QRS can be translated so that Q is mapped to A and then reflected across the line containing QS is the correct answer.</span>
7 0
4 years ago
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