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joja [24]
3 years ago
8

Donovan is training for a marathon. He currently can run 1 lap around the track in 0.85 minutes. How long will it take him to ru

n 12.5 laps?
ASAP
Mathematics
2 answers:
Ivan3 years ago
8 0

Answer:

10 minutes and 37.5 seconds

Step-by-step explanation:

0.85 is 51 seconds. I will be using this because it is easier for me.

Multiply 51 • 12 = 612 seconds for 12 laps. Divide 612 ÷ 60 = 10.2. You get 10.2 minutes. This is 10 minutes and 12 seconds for 12 laps.

Divide 51 by 2 to find how long it takes for 1/2 a lap. You will get 25.5 seconds for half a lap.

Add them together: 10 min 12 sec + 25.5 sec = 10 minutes and 37.5 seconds

Leokris [45]3 years ago
3 0

Answer:

10.625

Step-by-step explanation:

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The product of two consecutive positive<br> integers is 2550. Find the smaller number.
Paha777 [63]

Answer:

50

Step-by-step explanation:

n (n + 1) = 2550

n^2 + n = 2550

n = 50

n + 1 = 51

8 0
3 years ago
Convert 23° 12' to decimal form
Lina20 [59]

Answer:

15813.64 rounded to nearest hundredth

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Suppose you invest $63 a month in an annuity that earns a 3.3% APR
lisov135 [29]

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4 0
3 years ago
Line segment AB has endpoints A(-1.5, 0) and B(4.5 8). Point C is on line segment AB located at (0, 2)
Pie

Answer:

The ratio of AC/CB=1/3

Step-by-step explanation:

We use the section formula:

(\frac{mx_2+nx_1}{m+n},\frac{my_2+ny_1}{m+n})

We substitute the point A(-1.5,0) and B(4.5,8).

We plug in the points to get:

(\frac{4.5m - 1.5n}{m+n},\frac{8m+n \times 0}{m+n})

This is supposed to be equal to: (0,2).

(\frac{4.5m - 1.5n}{m+n},\frac{8m+n \times 0}{m+n}) = (0,2)

We can equate, corresponding coordinates to find m and n.

\frac{4.5m - 1.5n}{m + n}  = 0

This implies that:

4.5m - 1.5n = 0

4.5m  = 1.5n

\frac{m}{n}  =  \frac{1.5}{4.5}

\frac{m}{n}  =  \frac{1}{3}

Therefore the ratio is m:n=1:3

4 0
3 years ago
Convert 29.5% to a decimal
cricket20 [7]
Whatever% of anything is just (whatever/100) * anything.

thus 29.5% of something, is just (29.5/100) * something, and the decimal form of 29.5% is just 29.5/100 or the quotient of 29.5÷100.
7 0
3 years ago
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