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siniylev [52]
3 years ago
13

Earl runs 70 meters in 20 seconds. How many meters does Earl run per second?

Mathematics
1 answer:
Leokris [45]3 years ago
4 0

Answer:

= 3.5 meters per second

Step-by-step explanation:

To find the rate, we take the distance and divide by the time

rate = 70meters / 20 seconds

rate = 70/20

       = 7/2

       = 3.5 meters per second

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Which sets of ratios are a proportion? (Choose all that apply) *
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Answer:

<h2>Sets of Ratios that are Proportion</h2>

3/11 and 17/6

<h3>12/7 and 36/21</h3>

60/55 and 7/25

7/6 and 52/48

<h3>4/10 and 8/20</h3>

<h3>Solution:</h3>

> 12/7 and 36/21

\frac{12}{7}  =  \frac{36}{21}  \\ 12(21) = 36(7) \\ 252 = 252

> 4/10 and 8/20

\frac{4}{10}  =  \frac{8}{20}  \\ 4(20)  = 8(10) \\ 80 = 80

5 0
3 years ago
Mary is painting pumpkins to earn money. She plans on selling each pumpkin for $7.50. She currently has $200 in her savings acco
bixtya [17]

Answer: No. It's not proportional

Step-by-step explanation:

The direct proportion in mathematics is expressed as:

y = kx

where

y = $200

k = constant

x = $7.50

We then solve for k

y = kx

200 = 7.50k

k = 200/7.50

k = 26.67

Since k isn't a whole number, then the amount of money in her bank account proportional to the number of pumpkin she sells.

7 0
3 years ago
Based on the table of values below, find the slope between points where x = 5 and
aleksklad [387]

Answer:

Slope = 1

Step-by-step explanation:

The table gives the values of y corresponding to the values of x.

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Now, we have to determine the slope between points where x = 5 and where x = 10.

Now, the two concerned points are (5,2) and (10,7) and we have to find the slope between those two points.

Now, slope,  m = \frac{7 - 2}{10 - 5} = 1 (Answer)

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3 years ago
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ANEK [815]

Answer:

Fraction:7/10 Decimal:0.7 Percent:70%

Step-by-step explanation:

3 0
3 years ago
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