Advertisements
Advertisements
प्रश्न
Make m the subject of the formula x = `"my"/(14 - "mt")`. Find m, when x = 6, y = 10 and t = 3.
Advertisements
उत्तर
x = `"my"/(14 - "mt")`
⇒ (14 - mt) x = my
⇒ 14x - mtx = my
⇒ -mtx - my = -14x
⇒ m(tx + y) = 14x
⇒ m = `(14x)/("tx" + y)`
Substituting x = 6, y = 10 and t = 3
m = `(14 xx 6)/(3 xx 6 +10)`
= `(14 xx 6)/(28)`
= 3.
APPEARS IN
संबंधित प्रश्न
A man bought 25a articles at 30p paisa each and sold them at 20q paisa each. Find his profit in rupees.
Apple cost x rupees per dozen and mangoes cost y rupees per score. Write a formula to find the total cost C in rupees of 20 apples and 30 mangoes.
Make R the subject of formula A = `"P"(1 + "R"/100)^"N"`
Make a the subject of formula S = `"ut" + (1)/(2)"at"^2`
Make a the subject of formula S = `("a"("r"^"n" - 1))/("r" - 1)`
Make V the subject of formula K = `(1)/(2)"MV"^2`
Make h the subject of the formula K = `sqrt("hg"/"d"^2 - "a"^2`. Find h, when k = -2, a = -3, d = 8 and g = 32.
Make y the subject of the formula `x/"a" + y/"b" `= 1. Find y, when a = 2, b = 8 and x = 5.
Make I the subject of the following M = `"L" /"F"(1/2"N" - "C") xx "I"`. Find I, If M = 44, L = 20, F = 15, N = 50 and C = 13.
"The volume of a cone V is equal to the product of one third of π and square of radius r of the base and the height h". Express this statement as a formula. Make r the subject formula. Find r, when V = 1232cm3, π = `(22)/(7)`, h = 24cm.
