SOLUTION: Mr. Dawson purchased some artichokes for 80 cents each and twice as many pineapples for 95 cents each. Altogether he spent $18.90. Determine the number of artichokes mr Dawson boug

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Mr. Dawson purchased some artichokes for 80 cents each and twice as many pineapples for 95 cents each. Altogether he spent $18.90. Determine the number of artichokes mr Dawson boug      Log On


   

Question 905660: Mr. Dawson purchased some artichokes for 80 cents each and twice as many pineapples for 95 cents each. Altogether he spent $18.90. Determine the number of artichokes mr Dawson bought
Answer by rm29924(97) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = the number of artichokes
Let 2x = the number of pineapples since he got twice as many
he spent .80 on artichokes and .95 on pineapples
.80x + .95(2x) = 18.90
.80x + 1.90x = 18.90
2.70x = 18.90
x = 7
Mr. Dawson bought 7 artichokes
check your answer
.80(7) + .95(2(7)) = 18.90
5.60 + .95(14) = 18.90
5.60 + 13.30 = 18.90
18.90 = 18.90