S=4P+4Q
S=4(P+Q)
S/4=P+Q
S/4-P=Q
Q=S/4-P
Answer:
a) 3 people will need 35 days to paint the bridge
b) p=105/t
Step-by-step explanation:
a)
We have 7 people each one is to work 15 days, so the bridge needs a total of 7(15) days of work
7(15)=105
Then we have 3 people each one is to work t days, altogether should do a total of 105 days of work
3(t)=105
Solve for t
t=35
b)
Substitute p for 3 in the second equation
p(t)=105
Solve for p
p=105/t
Answer:
-8y + 1
Step-by-step explanation:
-8(y - 1/8)
multiply both the variable and the number inside the parentheses
(-8)(y) - (1/8)(-8)
-8y + 1
Answer:
I think it is 19 I not really sure
Step-by-step explanation:
o work it out of my paper and I got 19
You have to solve for y, Write out the equation
6y+x=8 then Subtract x from each side
6y=-x+8
Divide by 6 on each side
y=-x/6+1.33
