Question

Answer ASAP please !!

What is the cost of one rose bush ?

What is the cost of one shrub ?

Answer 1

Answer: rose = 7, shrub = 7

Explanation:

First equation 10r + 4s = 98

r = (98-4s) / 10

Second equation 9r + 9s = 126

Substituting

9 (98-4s) / 10 + 9s = 126

9(49-2s) / 5 + 9s = 126

(441-18s) / 5 + 9s = 126

441 - 18s + 45s = 630

441+ 27s = 630

27s = 630 - 441

s = 189 / 27 = 7

Cost of shrub = 7

Cost of rose = (98 - 4s) / 10

= 98-28 = 70 / 10 = 7