Answer:
6 dollars
Step-by-step explanation:
40-10=30
30/5= 6
The answer is 64 took the test
Answer:
r= -1.8
Step-by-step explanation:
Distribute
-3-18r=14-7
Combine like terms
-3-18r=7
add 3 to both sides
-18r=10
divide by -18
r=-1.8
Givens
Let the number of students in the class be x
Let the number of pieces of gum she gave out be 3x
Equation
3x + 8 = 168 This will not work out evenly. Let's try x - 1. The reason for that is because she may not give out anything to herself.
3(x - 1) + 8 = 168 This doesn't work either.
Well we have to choose. It's a rounding problem.
3x + 8 = 168 Subtract 8 from both sides.
3x = 168 - 8 Combine
3x = 160 Divide by 3 on both sides.
x = 160 / 3
x = 53.333333333
Since that can't be, we could say there were 53 students.
3x
