Martin can run a kilometer in 7 minutes. If he keeps at this pace how many minutes will it take him to run a 5k race?

35 minutes

Step-by-step explanation:

Martin can run a kilometer in 7 minutes. If he keeps at this pace how many minutes will it take him to run a 5k race?

To solve this, we simply need to use proportion.

Let x represent the number of minutes that will take Martin to run a 5 kilometer race

1  kilometer = 7 minutes

5 kilometer = x

cross-multiply

1 × x  =  7 × 5

x = 35 minutes

Therefore, it will take Martin 35 minutes to run a 5 kilometer race.

step-by-step explanation:

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x