Advertisements
Advertisements
Question
Find the value of 2p − 3q + 4r − 8s, when p = 10, q = 8, r = 6, and s = 2
Sum
Advertisements
Solution
2p − 3q + 4r −8s
= 2 × 10 − 3 × 8 + 4 × 6 − 8 × 2
= 20 − 24 + 24 − 16
= 20 − 16
= 4
shaalaa.com
Is there an error in this question or solution?
RELATED QUESTIONS
Fill in the blank, when:
x = 3, y = 6, z = 18, a = 2, b = 8, c = 32 and d = 0.
xy − bd = ..............
State true and false:
`(2"x"-4)/("x"+1)` = − 1, when x = 1
If x = 2, y = 5 and z = 4, find the value of the following:
`"x"/(2"x"^2)`
Evaluate:
(3y + 8y) – 5y
Simplify:
12x − (5x + 2x)
Simplify:
x − (x − y) − (− x + y)
Simplify:
`5"x"^2-(3"x"-overline("x"^2-4))`
Simplify:
− (y − x) − (x + y − `overline(2"x"+"y")`)
If P = − 12x2 – 10xy + 5y2, Q = 7x2 + 6xy + 2y2, and R = 5x2 + 2xy + 4y2 ; find P + Q + R
Substitute m = 3 into 5 + \[\frac{m}{2}\]:
