Answer:
b is the answer
Step-by-step explanation:
It depends on the total number of marbles in the bag and the number of yellow marbles in the bag
First you want to get x by it’s self so you need to get ride of your 5 so you subtract 5 on both sides leaving you with -2 and -5 on the same side then you combine those two number to get -7 now to get your x all you have to do is divide both sides by -7 since your x is -7 once once your x is now by its self but on the other side -7 divided by -7 equals 1 bc 7 goes into 7 once and it turns positive because anytime you divide an negative number by a negative number it turns into a positive number so your answer over all is 1=x
Triangle ABC is a right triangle, meaning we can use the Pythagorean Theorem to find x.
The formula for the Pythagorean Theorem is:

where a is the hypotenuse, and b and c are the legs.
In this problem, we have the vertical leg as 16, the horizontal leg as x, and the hypotenuse as 20. Therefore, we can say that

Therefore, we can plug into the formula to find x:

We first change the variable c to x and square both sides of the equation. Then we subtract b^2 from both sides.

We square root each side to find the variable answer for x. Then we plug in the numbers:

We find that x = 12. The answer is A. 12.
Answer:
5:7
Step-by-step explanation: