At one store a trophy costs $12.50. Engraving costs $0.40 per letter. At another store, the same trophy costs $14.75. Engraving costs $0.25. How many letters, e, must be engraved for the costs to be them same?

Question

Mathematics

Cuddles

31 July, 16:17

At one store a trophy costs $12.50. Engraving costs $0.40 per letter. At another store, the same trophy costs $14.75. Engraving costs $0.25. How many letters, e, must be engraved for the costs to be them same?

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Gonzales · Answer 1

12.50+0.4e=cost1

14.75+0.25e=cost2

when will costs be same

12.5+0.4e=14.75+0.25e

minus 12.5 from both sides

0.4e=2.25+0.25e

minus 0.25e from both sides

0.15e=2.25

divide both sides by 0.15

e=15

15 letters