Advertisements
Advertisements
Question
Find x if `5 x/5 xx 3 3/4` = 21
Sum
Advertisements
Solution
`5 x/5 xx 3 3/4` = 21
`(25 + x)/5 xx 15/4` = 21
`(25 + x)/5 = 21 ÷ 15/4`
`(25 + x)/5 = 21 xx 4/15`
`(25 + x)/5 = 28/5`
25 + x = `(28 xx 5)/5`
25 + x = 28
x = 28 – 25
x = 3
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Express the following as a product of prime factors only in exponential form:
270
Simplify:
`("P"/5)^3 xx ("P"/5)^7`
Solve: (-3)2 × (-3)3.
Solve: `((-2)/5)^2 xx ((-2)/5)^3`
Express the following in exponential form.
5 × 5 × 7 × 7 × 7
Simplify the following.
72 × 34
x is a non-zero rational number. Product of the square of x with the cube of x is equal to the ______.
`(-2)^31 xx (-2)^13 = (-2)^-`.
`a^6 xx a^5 xx a^0 = a^-`
If 2n+2 – 2n+1 + 2n = c × 2n, find the value of c.
