Devaughn is 15 years younger than Sydney. The sum of their ages is 37 . What is Sydney's age?
1 answer:
Hi,
Let Sydney's age be x.
Devaughn=(x-15)
x+(x-15)=37
x+x-15=37
2x-15=37
2x=37+15
2x=52
x=52/2
x=26
Sydney is 26 years old.
Hope this Helps you.
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Answer:
first number is 9
second number is 7
Step-by-step explanation:
2x + y = 25
3x - y = 20
Add the two equations so that 'y' is eliminated:
5x = 45
x = 9
2(9) + y = 25
18 + y = 25
y = 7
320 square feet are needed to cover 40%
It’s option c. I hope that helped
I'm not for sure but I think it might be 4409 to the -6 so 4409^-6. I haven't done these in a while so I might be wrong!
