C Any geometric shape with multiple sides
102 of runner's races were 10-kilometer races.
Step-by-step explanation:
Given,
Total kilometers finished = 1500 km
Number of 15 km races = 32
Number of 10 km races = x
Therefore;
15*32+10x=1500

Dividing both sides by 10

102 of runner's races were 10-kilometer races.
Keywords: variable, division
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Answer:

Step-by-step explanation:
We have two fractions and are being asked to add them both.
5/10 and 8/100 don't have the fractions, but 5/10 can be simplified to 1/2, meaning that to make the same denominator, we have to find the half of 100, which would be 50. Now turn the fraction into 50/100.
50/100 + 8/100
58/100
This can be simplifed :


The 1/3 power is another way to write the cube root.
∛216 = 6
With the given speed and the time traveled, we can solve for the distance by using the distance formula: distance = speed x time:
Substituting the given values to the equation:
d = 61 <span>• 4
Among the choices, the correct answer is C.</span>