Answer:
2.5
type A/B
Step-by-step explanation:
10/2.5=4
15/6=2.5
18/7.2=2.5
Answer:
each book was $16
Step-by-step explanation:
140-12=128 divided by 8 = 16
hope this helps!
4x / 5 = 1 / 3 ( 2x - 15 )
4x / 5= ( 2x - 15 ) / 3
4x × 3 = 5 ( 2x - 15 )
12x = 10x - 75
12x - 10x = - 75
2x = - 75
x = - 75 / 2
x = - 37.5
5 - 7 = -2. Therefore, the answer is (-2, 5).