R=number of hours ruby worked
i=number of hours issac worked
s=number of hours shetland worked
ruby worked 8 more than issac
r=8+i
shetland worked 4 times as many as ruby
s=4r
total they worked 136
r+i+s=136
so
we gots
r=8+i
s=4r
for r=8+i
solve for i
minus 8 both sides
r-8=i
so
r+i+s=136
subsitute r-8 for i and 4r for s
r+r-8+4r=136
6r-8=136
add 8 to both sides
6r=144
divide both sides by 6
r=24
sub back
r-8=i
24-8=i
16=i
s=4r
s=4(24)
s=96
ruby worked 24 hours
issac worked 16 hours
shetland worked 96 hours
Answer:
7^40 is umm I don't know sorry
Step-by-step explanation:
But hopefully it's helpful.
Assuming that there is supposed to be a + sign in front of the 2 and 4; the answer is as follows.
3(x+2)+4(x-5)=10
3x+6+4x-20=10
7x-16=10
7x=16
x=2 2/7
Hope this helps :)
Answer:
5
Step-by-step explanation:
Answer:
x=1
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable
brainliest please !! :) hope i helped :) !!
