Answer:
5/24 or 20.8%
Step-by-step explanation:
Probability that the 7th grader is a boy = number of boys/(total kids) = 4/(4+4) = 1/2
Probability that the 8th grader is a boy = 5/(5+7) = 5/12
Probability that both are boys = 1/2*(5/12) = 5/24 or 20.8%
Answer: what now sorry don’t know
Step-by-step explanation:
Assume that the number is n.
sum of twice the number and 15 means that you will first multiply the number by 2 then add 15.
the equation us:
2n + 15 = -42
2n = -42-15
2n = -57
n = -28.5
First find the length of the line in the middle.
c^2=5^2 + 5^2
c = square root of 50
Then use that to find x.
8^2 - c^2 = x^2
64-50 = x^2
14 = x^2
x = square root of 14
Base=9
Height=10
A=90
I think
