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3 years ago

Bob and rob in ratio 3:4 and their age 4 years ago was 5:7 find their ages

Mathematics

1 answer:

Trava [24]3 years ago

6 0

Answer:

Present Day:

Bob:Rob:Difference

3 : 4 : 1

6 : 12 : 2

4 years ago:

Bob:Rob:Difference

5 : 7 : 2

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4 years ago

How do I solve this literal equation? 15 points

kati45 [8]

Answer:

$\pi = \frac{A}{2r^2 + 2rh}$

Step-by-step explanation:

First, we need to isolate $\pi$ by taking it common from both terms on the right:

$A=2\pi r^2 + 2\pi rh\\A=\pi (2r^2 + 2rh)$

Now, since we want $\pi$ in terms of the other variables, we can divide the left hand side (A) by whatever is multiplied with $\pi$ on the right hand side. Then we will have an expression for $\pi$ . Shown below:

$A=\pi (2r^2 + 2rh)\\\pi = \frac{A}{2r^2 + 2rh}$

This is the xpression for $\pi$

7 0

3 years ago

Is 18 a divisor of 6?

Reptile [31]

Yes it is because 18÷6 is 3 and 6×3=18

5 0

3 years ago

How do you simplify radical 32

EleoNora [17]

$\sqrt{32}= \sqrt{16*2}= \sqrt{16}* \sqrt{2}=4 \sqrt{2}$

4 0

4 years ago

What is the volume of a cylinder if ,

sergiy2304 [10]

38,016 cm³

<h3>Ⲋⲟⳑⳙⲧⳕⲟⲛ :</h3>

We are given that :

Height of cylinder = 21 cm

Radius of cylinder = 24 cm

Therefore, Volume :

➙ V = πr²h

➙ V = ( 22 / 7 ) × ( 24 )² × ( 21 )

➙ V = ( 22 / 7 ) × 576 × 21

➙ V = ( 22 × 576 × 21 ) / 7

➙ V = 266112 / 7

➙ V = 38016

‎ㅤ‎ㅤ ‎ㅤ‎ㅤ~Hence, the volume of given cylinder is 38,016 cm³.

<h3>⳨ⲟⲅⲙⳙⳑⲇ ⳙ⳽ⲉ∂ :</h3>

The volume of cylinder is it's density which tells us the amount by which it can be filled by any material or the the amount of material which can be immersed in it.

The Formula for volume of cylinder is given by :

‎ㅤ‎ㅤ‎ㅤ‎ㅤ‎ㅤ‎➙ πr²h

8 0

2 years ago

Read 2 more answers