Find the arc length and sector area of the indicated sector. Assume that lines which appear to be diameters are actual diameters.
1) Arc DC
2) mGIH
E
50°D
H
45°
G
с
R = 10 m
R = 5 m

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Ответ:

bluebunny1231999

21.02.2020

Mathematics

10 pages can he type in 2.5 hours

Step-by-step explanation:

Unit rate defined as the rates are expressed as a quantity as 1 such as 3 meter per seconds or 2 miles per hour.

As per the statement:

Brian can type 1 1/3 pages every 20 minutes.

Number of page he type = $1\frac{1}{3} = \frac{4}{3}$

then by definition of unit rate:

$\text{Unit rate per minutes} = \frac{\frac{4}{3} }{20} =\frac{4}{3} \cdot \frac{1}{20}=\frac{1}{15}$ pages

Use conversion:

1 hour = 60 minutes.

Then;

$\text{Unit rate per hour} = \frac{1}{15} \cdot 60 = 4$ pages.

We have to how many pages can he type in 2.5 hours.

$\text{Number of pages he type in 2,5 hours} = \text{Unit rate per hour} \times 2.5$

Substitute the given values we have;

$\text{Number of pages he type in 2,5 hours} = 4 \times 2.5 = 10$

Therefore, 10 pages can he type in 2.5 hours

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Find the arc length and sector area of the indicated sector. Assume that lines which appear to be diameters are actual diameters. 1) Arc DC 2) mGIH E 50°D H 45° G с R = 10 m R = 5 m