There are 60 marbles in a leather bag. Some of the marbles are blue, some are green, some are clear, some are gold, and some are red. Based on experimental probability, there is a 1 in 5 chance of pulling out a blue marble. About how many blue marbles might be in the entire bag?
5 blue marbles
12 blue marbles
15 blue marbles
8 blue marbles

12 blue marbles

Step-by-step explanation:

I by 5 percent chance of blue marble

Let the number of blue marbles be x

X/60=1/5

5x=60

X=60/5

X=12

15

Step-by-step explanation:

TOOK THE TEST BRO SWEAR

d.) yes, because the volume of the cone is greater than the volume of the sphere

step-by-step explanation:

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.