Two trains, Train A and Train B, weigh a total of 300 tons. Train A is heavier than Train B. The difference of their weights i

Question

3 years ago

10

s 128 tons. What is the weight of each train?

1 answer:

eduard · Answer 1 · 2022-09-02T17:31:13+03:00

eduard3 years ago

7 0

Answer:

Train A = 214

Train B = 86

Step-by-step explanation:

a + b = 300

a - b = 128

a + b = 300

a = 128 + b

(128 + b) + b = 300

128 + b + b = 300

128 + 2b = 300

2b = 300 - 128

2b = 172

b = 172 ÷ 2

b = 86

a = 128 + b

a = 128 + (86)

a = 214

Two​ trains, Train A and Train​ B, weigh a total of 300 tons. Train A is heavier than Train B. The difference of their weights i