x- 150/(8 10-x)- 150 = 10/7
7(x- 150)= 10(8 10-x- 10)
7x- 1050 = 8 100- 10x- 1500
7x=6600- 10x+ 1050
7x=7650- 10x
17x=7650
x=7650÷ 17
x=450
8 10-x
=8 10-450
= 360 A:A is 450 tons and B is 360 tons. ..
2.18 ÷1/3000000 = 54000000 (cm) = 540 (km)
540 ÷ 5 =108km
108(5+4)= 12 (km)
12÷(5-4)= 12(km) A: Speed difference 12km.
3. Solution: Assuming that B produces X, then A is 1/2x.
1/2x / 25=(x- 120) / 40
40× 1/2x=25(x- 120)
20x =25x - 3000
25x-20x=3000
5x=3000
x=3000÷5
X=600 A: B will produce 600 parts.