The number that you are looking for is 540
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
The answer is C. 81.49 !!
Answer:
Step-by-step explanation:
The inverse operation for an exponential () is the logarithm: .
Answer:
7 6/7
Step-by-step explanation:
× =
× =
=