Question

E) Use the formula 3p + 5q = r to find the value of p when q = 2 and r = 25.6

[3]
1
Note: Identify your final answer clearly by writing p = ...

Answer 1

P = 5.2

Explanation:

5q = 5 x 2

= 10

r - 5q =

25.6 - 10

= 15.6

3p = 15.6/3

P = 5.2

Answer 2

P=6.53
Explanation: 3p+3(2)=25.6
3p+6= 25.6
-6. -6.0
3p=19.6
3p/3=19.6/3
P=6.53