X+3x+5x=27
x=27/9=3
youngest one is 3 years old.
Answer:
The working of expressions is shown below.
Step-by-step explanation:
We are given the following information:
a) Expand
b) Expand and simplify
c) Expand
d) Factorize fully
Answer:
26.67 hours or 26 hours and 40 minutes.
Step-by-step explanation:
To find out how long will it take for Joe and Bill to finish building the wall together, first find their individual work rates in feet per hour:
Bill:
Joe:
Their combined work rate is:
Then, divide the total size of the wall by their work rate to find the time spent to finish it: