Answer:
set mary is x years old, and helen is y years old.
first sentence:x=2y
second one:4(y-8)=x+4
bring x=2y in 4(y-8)=x+4
=>4y-32=2y+4
=>2y=36
=>y=18
=>x=36
mary:36
helen:18
No, because 7 x 21 is 147.
Answer:
81
Step-by-step explanation:
by dividing the smallest number from the bigger number to get the last house
If you are -$8000 one month, the next month you need to make 8000 to break even.
April net profit must be +$8,000 to break even.
The expression for five groups of a number added to seventeen.
Let the number be X
Five groups of the number will be 5X
The required expression will be
5(X) +17
