Question

Find 12 of $45
Show and explain all your work
30 is what precent of 75?

Answer 1

Is that 12% of $45??

Answer 2

Yeah sorry

Answer 3

So it will go like this:

\[\frac{12}{100} \times 45\]

can you solve this?

Answer 4

5.4

Answer 5

Yep..

Answer 6

And my other ?

Answer 7

Yes..

You are asked there what percentage??

So, let what percentage that we don't know is x:

So this will become:

\[\frac{x}{100} \times 75 = 30\]

Can you here solve for x?

Answer 8

Firstly multiply by 100 both the sides and tell me what you got?

Answer 9

750 & 300

Answer 10

How??

Answer 11

100 x 75. 100 x 30

Answer 12

100 X 75 = ??

and then:

30 X 100 = ??

Answer 13

Yes

Answer 14

So you got:

\[\frac{x}{100} \times 75 \times 100 = 30 \times 100\]

Here you can cancel 100 on Left Hand Side:

\[\frac{x}{\cancel{100}} \times 75 \times \cancel{100} = 3000\]
\[75x = 3000\]

Now divide by 75 both the sides and find x..

Answer 15

40

Answer 16

Good..

Answer 17

Thanks!! :)

Answer 18

You are welcome dear..