The following expression is 23
Answer:
a-8x+21y-10=19
b-3(x-6y)=6
c-(15-12)=4
Step-by-step explanation:
8 minutes for 10 problems
We want to find the unit rate.
Basically, how long does it take to do just <em>1</em> problem?
Divide each number by 10.
8/10 minute for 1 problem
This could simplify to 4/5 because both the top and bottom are divisible by 2, but since 8/10 is one of the answers, pick that.
Answer:
C
Step-by-step explanation:
Remark
You must do the changes in order. Add 1 then multiply by 2
- First entry: 6
- Add 1: 6 + 1 = 7
- Multiply by 2 = 2*7 = 14
- Add 1: 14 + 1 = 15
- Multiply by 2: 15 * 2 = 30
Answer: 7 14 15 30