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2 years ago

Penny reads 13 pages in 1/3 hour. What is the unit rate for pages per hour? For hours per page?

Mathematics

2 answers:

Free_Kalibri [48]2 years ago

8 0

39 pages per hour
13x3=39

Kryger [21]2 years ago

4 0

Answer:

39 pages per 1 hour

Step-by-step explanation:

13 pages per 1/3 of an hour,

1/3x3=1

13x3=39

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Preston bought a drum set priced at 187.90. The sales tax was found by multiplying the price of the drum set by 0.08. What was t

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3 years ago

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3 years ago

Read 2 more answers

From $16 to $4 decreased

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3 years ago

Read 2 more answers

xz_007 [3.2K]

Answer:

1) $n = 84$

2) $n = 78$

3) $n = 24$

4) $n = 16$

5) $n = 35$

Step-by-step explanation:

To solve each proportion, we apply cross multiplication.

Question 1:

$\frac{5}{12} = \frac{35}{n}$

$5n = 35*12$

Simplifying both sides by 5

$n = 7*12 = 84$

Question 2:

$\frac{n}{52} = \frac{180}{120}$

$120n = 52*180$

Simplifying both sides by 20

$6n = 52*9$

Simplifying by 3

$2n = 52*3$

Simplifying by 2

$n = 26*3 = 78$

Question 3:

$\frac{18}{n} = \frac{21}{28}$

$21n = 18*28$

Simplifying both sides by 7

$3n = 18*4$

Simplifying both sides by 3

$n = 6*4 = 24$

Question 4:

$\frac{n}{4} = \frac{24}{6}$

$\frac{n}{4} = 4$

$n = 16$

Question 5:

$\frac{10}{16} = \frac{n}{56}$

$16n = 56*10$

Simplifying by 2, both sides

$8n = 56*5$

Simplifying by 8, both sides

$n = 7*5 = 35$

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3 years ago

Penny reads 13 pages in 1/3 hour. What is the unit rate for pages per​ hour? For hours per​ page?

Penny reads 13 pages in 1/3 hour. What is the unit rate for pages per hour? For hours per page?