Question

Help plz i hate this but everytime I do this I get it worng

Answer 1

The answer is 19.25

Explanation:

Key skills needed: Fraction operations, decimal conversion

1) We are given the hint to use 9 as "b", and we get:

--->
`a = (16)/(8)(9) + (10)/(8)`

Let's do
`(16)/(8)(9)`

-->
`(16)/(8)` is the same as
`16` ÷
`8`

16 divide by 8 is 2.

2) This means that it would be --->
`2(9)` which is simply 2 times 9.

2 times 9 = 9 + 9 = 18

3) With that result, it would be --->
`a = 18 + (10)/(8)`

Now, do
`(10)/(8)` (10 divided by 8) ---> Get 1.25

4) 18 + 1.25 = 19.25, so -->
`a = 19.25` is the answer

Hope you understood and have a nice day!! :D