Correction made on original post
Hi there, would really appreciate some help in understanding why this is the answer to this equation.
Find the value of 2/3 (4+3q) when q = 4/5.
The answer given in the back of the book im working from is 4 4/15.
Now when i type the equation into my calculator i get 26/5.
I have been trying to work out why the answer is 4 4/15 and cant seem to quite get it.
Thanks Olly
I typed it in mine and i got 4 4/15. I think that your calculator does not do order of operations?
First thing you do is 3*(4/5)
Then you add 4 to it
Finally you multiply the sum you get which is 6 2/5 by 2/3 and you get 4 4/15
Thank you for your reply sakonpure6
Ok so i think i got my head around it, without a calculator:
3*(4/5) = 3/1 x 4/5 = 12/5
12/5 = 2 2/5
2 2/5 + 4 = 6 2/5
6 2/5 = 32/5
32/5 x 2/3 = 64/15 = 4 4/15
Now is there a simpler way to do this without a calc or do you have to do all these steps.
Also my calculator is a Casio fx-991es, im not sure if it does order of operations. My calculator gives the final answer 64/15, should it give the answer as a simplified mixed number i.e 4 4/5?