4D+5P=$25

3D+4P=$26

Find the Value of D and P

P= $-7 and D = $15

Step-by-step explanation:

4D + 5P = $25

5P = $25 - 4D

P = ($25 - 4D)/5            equation(i)

Noe substitute the value of P

3D + 4P = $26

3D + 4($25 -4D)/5 = $26

3D*5 + $100 -16D =$26*5

15D + $100 - 13D =$130

2D = $130 - $100

D = $30/2

D = $15

Again substitute the vale of D in equation(i)

P = ($25 -4D)/5

=$25 -4*$15/5

=$25 -$60/5

=-$35/5

=-$7

what i would say the best answer is a. 40.5