F=60, s=60/2=30
(60-x)/(30-x)=4
60-x=120-4x
60+3x=120
3x=60
x=20
s=30-x
s=30-20
s=10
So the boy was 10 years old when his father was four times his age.
Attached solution and work.
Answer:
D. 62˚
Step-by-step explanation:
Answer:
y=3,6,9,12,15
Step-by-step explanation:
Y=3x+6
y=3(-1)+6
y=3
y=3(0)+6
y=6
y=3(1)+6
y=9
y=3(2)+6
y=12
y=3(3)+6
y=15
Answer:
B. 125
Step-by-step explanation:
72 did not return the permission slips.
125-72= 53
So therefore 53 students are going on the field trip.
