So, first, to make things easier, you should convert these mixed fractions into improper fractions so it's easier to deal with later. The improper fractions will be 51/10 divided by 32/5.
Since you're are dividing fractions, there is a rule when dividing fractions, you have to multiply the number by the reciprocal, meaning the second fraction needs to be flipped and the divide signs will turn into a multiply sign. It will be:
51/10 times 5/32
This is the time where you simply where you can:
51/2 times 1/32
After simplifying, you times the numerator together (the top number of the fraction) and the denominator (the bottom number of the fraction).
=51/64
3,400×(1+0.04)^(7)=4,474.17
a)
3 chocolate chip cookies - $2.49 .
So 1 chocolate chip cookies costs 2.49/3=$0.83
b)
1 chocolate chip cookie costs $0.83
20 chocolate chip cookies cost 0.83*20=$16.6
Full credits to a Brainley User.
Your answer is number 2 it is 38.2 because 26 out of 68 is a percentage of 38.24
