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Serjik [45]
3 years ago
14

1). The ratio of boys to girls in a class is 2:1. If there are 8 girls, how many boys are there?

Mathematics
1 answer:
castortr0y [4]3 years ago
8 0

Answer:

There are 16 boys there

Step-by-step explanation:

The ratio of boys to girls is 2:1

If there are 8 girls, then boys will be double of girls number, as it is double of girls ratio

∴ Boys = 2 × 8

= 16

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nexus9112 [7]

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3 years ago
The radius is 10 units, and each layer is one unit high. What is the volume of the cylinder in cubed units?​
alexandr1967 [171]

Answer:

Volume of cylinder is 6285.71 square units.

Step-by-step explanation:

Given the radius of cylinder 10 units. The height is twice its radius. we have to find its volume.

r=10 units

⇒ Diameter, d = 20 units

Also given height is twice its radius.

⇒ Height=2(r)=2(10)=20 units

<h2><em><u>Volume of cylinder=πr^2h</u></em></h2>

= 22/7 × 100×20

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= 44000/7

= 6285.71square units.

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Read 2 more answers
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