Answer:
delete this
Step-by-step explanation:
1 and a half tons of gravel is 3000 pounds, so do 3000-1750 and get 1250 pounds of gravel.
Answer:
Step-by-step explanation:
C = 0.42b + 25
C = what ur gonna be charged
b = number of bricks
since b is the number of bricks, this equation is saying that each brick cost 42 cents. So that takes care of the bricks, but this equation also includes a delivery fee........the 25.....so they are charging a $ 25 delivery fee per load
Yanira = Y
Tim = T
Hannah = H
-----------------
Therefore:
Y=T+3
Y=2H
T=H+2
---------------
Now, we know that:
Y=T+3
But we also know that:
T=H+2
Therefore:
Y=(H+2)+3
Y=H+5
-------------------
Now we can combine the equations:
Y=H+5
Y=2H
Therefore:
2H=H+5
2H-H=5
So, H=5.
---------------------
If H=5,
Y=2H=2*5=10
---------------------
If H=5,
T=H+2=5+2=7
-----------------------
Answers:
Yanira is 10 years old.
Tim is 7 years old.
Hannah is 5 years old.