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djyliett [7]
3 years ago
8

4.) Trina earns $28.50 tutoring for 3 hours. How much would Trina earn tutoring for 2 hours?​

Mathematics
1 answer:
Dafna11 [192]3 years ago
6 0

Answer:

19

Step-by-step explanation:

First, find the unit rate. (How much she makes in 1 hour.)

28.50/3 is 9.5

Now it asks for how much she will make in 2 hours.

9.5 x 2 is

19.

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What number should be added to 7/12 to get 4/15?​
DENIUS [597]

Answer:

Step-by-step explanation:

Let the number = x.

We are trying to find out what number (x) we would need to add to 7/12 to get 4/15

\frac{7}{12}  + x = \frac{4}{15}

Subtract 7/12 from both sides.

x = \frac{4}{15}  - \frac{7}{12}

We need to make the denominators of the fractions the same.

\frac{4}{15}  = \frac{16}{60}

\frac{7}{12}  = \frac{35}{60}

So,

x = \frac{16}{60}  - \frac{35}{60}  = -  \frac{19}{60}

6 0
3 years ago
your grade in Class varies directly with how many hours you study. you study for 3 hours and get a 60. What grade would you get
wel

To do this question you can use proportions.

3/60 is simplified to 1/20.

This shows that if you study 1 hour you get a 20. So to find the answer you multiply each side by 4.5, this means that if you study 4.5 hours you get a 90.

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3 years ago
How do you evaluate 3f(2)
d1i1m1o1n [39]

The answer should be 6f. You multiply the 3 and the 2 and then put the f at the end (:

5 0
3 years ago
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Paul [167]

Answer:

Step-by-step explanation:

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