1 answer:
Answer:
36 years
Step-by-step explanation:
Let
x = Elga's age
Alvin's age = x + 7
Sum of their ages = 79
Sum of their ages = Alvin's age + Elga's age
79 = (x + 7) + x
79 = x + 7 + x
79 = 2x + 7
79 - 7 = 2x
72 = 2x
x = 72/2
x = 36
Elga's age = x = 36 years
Alvin's age = x + 7
= 36 + 7
= 43 years
You might be interested in
Answer:
The second group represents function f.
Step-by-step explanation:
Hope it helps...
Have a great day
Answer:
60
Step-by-step explanation:
Difference would be 1000x3.0 - 8.8x10000 = -85000
Scientific notation would be 8.5x10^-4
Answer:
Bill needs to sell 50 pairs of men’s clothes.
Step-by-step explanation:
50y = 2500
Divide by 50 on both sides
2500/50 = 50
There is a problem with your question. it doesn't make sense ???
