Answer:
79%
Step-by-step explanation:
He has 100% to start off. If he puts 21% into savings you subtract that from the starting amount. 100 - 21 = 79. Therefore the answer is 79%.
Y = mx + b
m= 1/2 Then y = 1/2(x) + b
Calculate b
3 = 1/2.(4) + b
3 = 2+b and b = 1
Final equation y = 1/2(x) + 1
Answer:
Step-by-step explanation:
1). add 5 + 7
Answer: Sorry I forgot about this, I really didn’t learn anything this year but my best guess is... ( A )
Assign variables to you unknowns.
c = $ cars
t = $ trucks
6c + 3t = 4800
8c + t = 4600
use substitution or elimination to solve the system of equations.
using elimination.. multiply second equation by -3 and add to the other to combine equations into one.
6c + 3t = 4800
-3(8c + t = 4600)
---------------------------
-18c + 0 = -9000
c = 9000/18
c = 500 $
use this in one of the equations to find the cost of a truck.
8(500) + t = 4600
4000 + t = 4600
t = 4600 - 4000
t = 600 $
question asks
2(500) + 3(600) =
1000 + 1800 = 2800 $
