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3 years ago

Olive can read 5 pages of her book in 20 minutes. At what unit rate is olive reading?

Mathematics

1 answer:

Luda [366]3 years ago

7 0

Answer:

1/4 page per minute

Step-by-step explanation:

To find the unit rate, we need the amount of page she read in 1 minutes. To do this we divide the pages by the minutes. Let x equal the pages she reads per minutes.

5/20=x

we can simplify the fraction by divide both the numerator and denominator by 5

(5/5)/(20/5)=x

Do the division

1/4=x

Olive reads 1/4 page per minute

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Answer:

$V=18.2cm^3$

Step-by-step explanation:

The volume of the pyramid is given by:

$V=\frac{A_{b}h}{3}$

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We know that the height is:

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Thus we need to find the area of the square at the base.

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$p=8.2cm$

this means that the length of the sides of the square is :

$l=\frac{p}{4}\\ \\l=\frac{8.2cm}{4}\\ \\l=2.05cm$

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$A_{b}=l^2\\A_b=(2.05cm)^2\\A_b=4.2025cm^2$

and finally we find the volume:

$V=\frac{A_{b}h}{3}$

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3 years ago

A map has a scale of 3 cm: 18 km. If Riverside and Smithville are 54 km apart then how many cm is that on a map?

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Answer:

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If the scale is 3cm:18 km, then x cm : 54km will be the distance between Riverside and Smithville. Since 18 *3 = 54 then 3cm * 3 = 9cm. On the map they are 9 cm apart.

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