Cross multiply to find your answer
x/250 = 20/100
250 X 20= 5000
5000=100x
x = 50
250 - 50 = 200
7h + 6b = 35.50
5h + 6b = 30.50
The difference between the 2 totals spent is $5, and there were the same number of burgers, but 2 fewer hotdogs. So $5/2 = $2.50, the cost of a hot dog. Substitute that into the equations to solve for burgers (b)
5(2.50) + 6b = 30.50
12.50 + 6b = 30.50
6b = 18
b = 3
Check the work:
7(2.50) + 6(3) =
17.50 + 18 = 35.50
Figure out how much they sell one for by diving the price by the quantity
CD Express offers 1 CD for $15
Music Place offers 1 CD fof $12.50
Music place has the better buy
You can get 30 servings of jam out of the bottle.
Hope this helps! I can’t help with the graphing...
