What is a way that i can get 3x and 2x to cancel out in this problem? i need to get - 5y = -13 and + 15y = -3 alone. problem:
3x + 5y = -13
2x + 15y= 3

For 3x + 5y = -13 the answer is x= -13/3 + 5y/3

and for 2x + 15y=3 the answer x= 1.5 + (-15y/2)

Step-by-step:

For 3x+5y=-13 you have to add 5y on both sides. Then you have to divide by 3 on both sides and cancel out the common factor of 3. Then you would get x= 13/3 + 5y/3.

For 2x + 15y=3 you have to subtract 15y on both sides of the equation. You should have 2x=3 + (-15y). Then divide by 2 on both sides. 3 divided by 2 is 1.5 and -15y divided by 2 is -15y/2 since 2 doesn't have the same variable. so the answer should be x= 1.5 + (-15y/2).

3

Step-by-step explanation:

The interquartile range (IQR), represents the middle 50 percent of a data set. To calculate it, first order your data points from least to greatest, then determine your first and third quartile positions.

You have 1, 1, 1, 3, and then 5.

The formula is Quartile 3 (Q3) - Quartile 1 (Q1)

Q1 has numbers 1 and 1. Q2 (the middle) is also 1. Then Q3 is 3 and 5.

You take the biggest value and subtract it from the first two. so 5-2 = 3