Answer:
a) Here we have:
"In Family A, the youngest child is 7 years younger than the oldest, who is 18"
Let's define:
Y = age of the youngest child.
O = age of the oldest child.
Then we know that:
Y = O - 7
O = 18
Then we can replace the second equation into the first one:
Y = 18 - 7 = 11.
b) Here we have:
"In Family B, the middle child is 5 years older than the youngest child."
Let's define:
Y = age of the youngest child.
M = age of the middle child.
Here we have only one equation:
M = Y + 5.
Step-by-step explanation:
the opposite angles are always same.
$36 because 20% of 45 is 9 and 45 - 9 is 36!
Answer:
26
Step-by-step explanation:
both bottoms corners are equal lengths so the other length has to be 26 since the other length is 26.
Answer:
Step-by-step explanation:
(b+8)≤18
