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2 years ago

A parallelogram has an area of 216.24 cm2 and a height of 15.9 cm. How long is the base of the parallelogram

Mathematics

2 answers:

sesenic [268]2 years ago

3 0

The base would be 13.6 cm long, if you divide the area by the height you will get the base.

DIA [1.3K]2 years ago

3 0

Answer: 13.6

Step-by-step explanation:

First you do 216.24 divided by 15.9 (Because dividing is just multiplication backwards), then you get 13.6

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A survey showed that 4 out of 5 students own a bicycle. Based on this result, how many of the 800 students in a school own a bic

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3 years ago

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betty closes the nozzle and fills it completely with a liquid. She then opens the nozzle. If the liquid drips at the rate of 14

natta225 [31]

Answer:

4.71 minutes

Step-by-step explanation:

Incomplete question [See comment for complete question]

Given

Shape: Cone

$r = 3$ -- radius

$h = 7$ --- height

$Rate = 14in^3/min$

Required

Time to pass out all liquid

First, calculate the volume of the cone.

This is calculated as:

$V = \frac{1}{3} \pi r^2h$

This gives:

$V = \frac{1}{3} * 3.14 * 3^2 * 7$

$V = \frac{1}{3} * 197.82$

$V = 65.94in^3$

To calculate the time, we make use of the following rate formula.

$Rate = \frac{Volume}{Time}$

Make Time the subject

$Time= \frac{Volume}{Rate }$

This gives:

$Time= \frac{65.94in^3}{14in^3/min}$

$Time= \frac{65.94in^3}{14in^3}min$

Cancel out the units

$Time= \frac{65.94}{14} min$

$Time= 4.71 min\\$

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2 years ago