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Spencer scored 75 points by collecting 3 coins. In all, how many coins does Spencer have to collect to score a total of 100 points? Assume the relationship is directly proportional.

Sagot :

Answer: 4 coins

Spencer scored 75 points by collecting three coins

Firstly, we need to know the number of points that give one coin

Since, 75 points give 3 coins

One coin = 75 / 3

one coin = 25 points

So, for every one coin Spencer will need a 25 points

If a coin generate 25 points, how many coins will 100 points give

1 coin = 25 points

x coins = 100 points

Cross multiply

25 * x = 100 x 1

25x = 100

Divide both sides by 25

25x/25 = 100/25

x = 4 coins

Spencer would collect a total of 4 coins to score a total of 100 points