Answer:
15
Step-by-step explanation:
50 x 0.30 = 15
30%=0.30
Answer:
x could be anything. you have to have a equation to solve for x.
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
2(7-5)=4
2.5 times .76 show the work
Answer:
8 cars and 7 vans
Step-by-step explanation:
Let c =number of cars
v = number of vans
c+v = 15
4c+6v = 74
Multiply the first equation by -4 to eliminate c
-4c -4v = -60
Adding the second equation
-4c -4v = -60
4c+6v = 74
-------------------
2v = 14
Divide by 2
2v/2 = 14/2
v = 7
There are 7 vans
c+v = 15
c+7 = 15
c = 15-7
c = 8
There are 8 cars