Answer:
30
Step-by-step explanation:
60/40=3/2
105/40+x = 3/2
105/70=3/2
x=70-40 = 30
x = 30
60/40 = 45/x
Cross multiply.
60x = 40 × 45
60x = 1800
Divide both sides by 60.
x = 1800/60
