X=60 and y=20
x and y can be many things that answers the question to 120
1. make an equation
4x+7(20) = 5(x+20)
2. multiply the numbers and distribute 5 through the parenthesis
4x+140 = 5x+100
3. move variables to the left side and change its sign and move constant to the right side and change its sign
4x-5x = 100-140
4. collect the like terms and calculate the difference
-x = -40
5. change the signs on both sides of the equation
x = 40
he needs to use 40 pounds of the cheaper coffee.
hope this helped!
Answer:
7 wks, 181 lbs
Step-by-step explanation:
160+3t=195-2t
160+5t=195
5t=35
t=7 weeks
160+3(7)=195-2(7)=181 pounds
Answer:
x = 4
Step-by-step explanation:
6x - 8 = 4x
-6x -6x
-8 = -2x
-----------
-2
x = 4
Answer:
Car: 60%
Motorcycle: 30%
Truck: 10%
Step-by-step explanation:
Car:
or 60%
Motorcycle:
or 30%
Truck:
or 10%