Answer: 7 years
Step-by-step explanation:
let x be the age of Mary
so John's age will be 2x
the equation becomes
2x+x=21
3x=21
x=21/3
x=7
Answer:
<u>I </u><em><u>believe </u></em><u>the answer would be A.</u>
Step-by-step explanation:
A says 6 x h is 54.
^ ^ ^
important!
6 is the number of hours.
h is how much money made per hour.
54 is the total after working 6 hours.
Do you need help solving the sequence?
Answer: $536.40
Step-by-step explanation:
8.94 * 2 = 17.88
8.94(40) + 17.88(10)
357.60 + 178.80 = $536.40
Answer: Option (1)
Step-by-step explanation:
