A garden supply store sells two types of lawn mowers. The smaller mower costs $249.99 and the larger mower cost $329.99. If 30 total mowers were sold and the total sales for a given year was $8379.70, find how many of each type were sold.

19 small and 11 large were sold

Explanation:

Systems of Equations

Gather your info:

249.99 (small mowers) are x

329.99 (large mowers) are y

249.99x + 329.99y = $8379.70 total money made

x + y = 30 total were sold

substitution method is what I used.

1. Substitute y-30 (because x = 30 - y when you subtract y from both sides) for x and get 249.99(30-y) + 329.99y = 8379.70.

2. Then distribute the 249.99 to the -y and 30 to get -249.99y + 7499.70 +329.99y = 8379.70

3. Then combine like terms to get  80y +7499.70 =8379.70.

4. Finally, subtract 7499.70 from both sides to get 80y=880.

5. Divide both sides by 80 to get y=11. So there were 11 large lawn mowers sold and that means the 19 left to get 30 total. So 19 have to be the small mowers.

1. servirá

2. dormirá

3.pedirás

4. prefieren

explanation: