Question

a gardener buys fifty carrots seeds and twenty lettuce seeds for $1.10 and her mother buys thirty carrots seeds and forty lettuce seeds for $1.50, find the cost of one carrot sed and one lettuce seed.

Answer 1

Answer:

Convert dollars into cents

l = lettuce

c = carrots

50c + 20l = 110

30c + 40l = 150

20l = 110-50c

using substitute method

l =  110-50c / 20

30c + 40 *  110-50c / 20 = 150

30c + 2(110 - 50c) = 150

30c + 220 - 100c = 150

220 - 70c = 150

-70c = 150 - 220

-70c = -70

c = 1 cent

now find l :

l = 110-50(1) / 20

l = 3 cents

Hope this helped!