Kyle spend 1/5 of his money on clothing. he had 120 remaining. what was the cost of the clothes kyle bought

30 is the cost of clothes Kyle bought.

Step-by-step explanation:

Given: Kyle spend 1/5 of his money on clothing.

          Remaining money is 120.

Lets assume the total money Kyle had be "x".

∴ Money spent on clothes =

Now, putting up value in the equation to find the total amount of money.

We know, money remaining is 120

Taking LCD subtract the fraction.

⇒

⇒

⇒

Multiplying 5 both side

⇒

dividing 4 on both side.

∴

∴ x= 150

Kyle has total 150 money to spend.

Kyle spent of his total money on clothing.

⇒ cost of clothes kyle bought=

Hence, Kyle spent 30, which was the cost of clothes kyle bought.

hello!

to begin with, we're given that on earth, a rock weighs 20 pounds, and while on jupiter, that same rock weighs 42 pounds. now, we're trying to find the weight of a rock that weighs 10.5 pounds on earth, on jupiter.

to solve this, first, set up a proportion, cross-multiply, and solve it algebraically.

setting up the proportion is the hardest and the most confusing part of the problem, but it's simple.

if on earth, the rock weighs 20 lbs, and on jupiter it weighs 42 lbs, our first part of our proportion is 20/42 lbs. the second part has to be equal to each other. this means that 10.5 has to be on the numerator of the fraction, and x, the value we're trying to find, has to be on the denominator. remember that the rock weighs 10.5 lbs on earth, and we're trying to find the weight of it on jupiter (which is x).

20/42 = 10.5/x

next, you would cross-multiply.

20x = 42(10.5)

20x = 441

now, solve it algebraically by using division.

x = 22.05 lbs

this can be rounded to 22.1 lbs.

therefore, the weight of the rock on jupiter is 22.1 lbs, the fourth choice.

step-by-step explanation: