Answer:
x = 30
Step-by-step explanation:
Since this is a right triangle,
90 = (x + 20) + (x + 10)
90 = x + x + 20 + 10
90 = 2x + 30
90 - 30 = 2x
60 = 2x
60/2 = 2x/2
30 = x
Check:
x + 20
30 + 20 = 50
x + 10
30 + 10 = 40
50 + 40 = 90
Hope this helps!
Answer:
-1
Step-by-step explanation:
To find b, enter (x,y)=(8,1).
1 = 1/4(8) + b
1 = 2 + b
Subtract 2 on both sides ~
-1 = b
b = -1
Answer:
where is the picture ?
Step-by-step explanation:
Answer:
40
Step-by-step explanation:
A+B+C = 31
Add 3 years to each age
A+3 +B+3 + C+3 = 31 +3+3+3
They will be
A+3 +B+3 + C+3 = 40
