Pickles cost $8.99 each, watermelons cost $7.49 each. if I purchased 10 pickles and watermelons for $85.40, how much of each did I purchase? I WILL GIVE 15 POINTS.

7 pickles, 3 watermelons

Step-by-step explanation:

p = number of pickles purchased

w = number of watermelons purchased

p + w = 10

8.99p + 7.49w = 85.40

Multiply the first equation by 7.49

7.49p + 7.49w = 74.90

Subtract the new first equation from the second

(8.99p - 7.49p) + (7.49w - 7.49w) = 85.40 - 74.90

1.50p = 10.5

p = 10.5/1.5

p = 7

Substitute p into the first equation to find w

p + w = 10

7 + w = 10

w = 10 - 7

w = 3

Check it using the second equation

8.99(7) + 7.49(3) = 85.40

$450.00 for 6 weeks

or

$300

step-by-step explanation:

$200.00 for first week $50.00 x5 equals $250 plus $200 equals $450.00 for six weeks.

$200 for first week

$200 x 0.10 = $20

$20 x 5 = $100

$200 + $100 = $300