You would use distribution. So, in this case, it would be 10a - 50. You use -10 to multiply -a and 5, and you get 10a, and -50.
Let x and y be the two numbers. We have:

Subtract the first equation from the second to get

And deduce

The two numbers are 3 and 11.
<span>If A = James's present age
then
</span><span>his age seven years from now = A - 7
hope it helps</span>
Step-by-step explanation:
To find the volume of a cylinder the equation is
V = π×r×r×h
= 22÷7 × 4.5 × 4.5 × 8
Answer = 508.94
Answer:
Three circular arcs of radius $5$ units bound the region shown. Arcs $AB$ and $AD$ are quarter-circles, and arc $BCD$ is a semicircle.
Step-by-step explanation: