Answer:
in table data from a survey about the amount of time students spend doing homework each week. The students were either in college or in high school: High Low Q1 Q3 IQR Median Mean σ
College 50 5 7.5 15 7.5 11 13.8 6.4
High School16 0 9.5 14.5 5 13 10.7 5.3 Both spreads are best described with the standard deviation.
Step-by-step explanation:
Answer:
Part A - the independant variable is the monthly allowance, and the dependent amount is the one that he has to get As for in order to receive it.
Part B - y = 30x + 20
Step-by-step explanation:
Answer:
Opposites are basically the negative and positive of a number. I cannot think of something for a real world situation though.
Step-by-step explanation:
8 + 7 = 15, so 6 + 9 = 15
Answer: 
<u>Step-by-step explanation:</u>
3(3 + x) = 7x - 9
9 + 3x = 7x - 9 <em>distributed 3 on the left side</em>
<u> -3x</u> <u> -3x </u>
9 = 4x - 9
<u>+9 </u> <u> +9 </u>
18 = 4x
<u>÷4 </u> <u>÷4 </u>
= x
