a boy runs at an average 5 km/h in a cross country race. the circuit is 6 km long. At the halfway point, the boy increases his average speed to 6km/h. How long does it take the boy to complete the race?

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1

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step-by-step explanation:

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answer:

125 yards

explanation:

75+50=125. that is my answer