Course 2, Chapter 8 Closure

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If baseball were played on Mars, the balls would fly much farther than they do on Earth. Mike expects that he would hit 50% more home runs if he were playing baseball on Mars. If he hit 76 home runs on Earth, how many home runs does he expect to hit on Mars?

Answer explanation

50% of 76 = .50 x 76, which = 38.

50% more means we need to add that 38 (which is 50% of 76) to the original value of 76.

76 + 38 = 114 home runs.

Annika is saving money for a trip. She is able to save $75 a week. Her friend from Iceland, Eva, is also saving money. Eva is able to save 9000 Kronas (Icelandic money) each week. If $4 is equal to 509 Kronas, who is saving at a greater rate?

Answer explanation

Annika is saving $75 a week, whereas Eva is saving about $71.

Solve: 3h + 8 = 5

h =?

Solve: -11 = 3f + 7

f = ?