First semester: 2:7
Second semester: 5:4
5*15 = 75
15*4 = 60
75:60 (art class - gym class)
2:7
2*15 = 30
7*15 = 105
There were 30 students in art class and 105 students in gym class second semester.
-7/4
Because where the next point meets is 7 across and 4 down. And since the line is going down then the slope is negative
When Determining positive and negative I like to think of it like I’m writing my name on the line, if my name goes down the line then it’s negative, but if my name is going up then it’s positive.
I hope this helps
1. 3(p+q)=p
3p+3q=p; 3p-p=3q; 2p=q so p=q/2
2. 4a=2b-7
2b=4a+7 so b=(4a+7)/2
when a=3 , b=(12+7)/2=19/2=9.5
3. d=rt; r=d/t
4.( 2x15)+(2xwidth)=90
2x width=90-30
width =60/2=30
The median and mode of the given data is 30 and 32 respectively.
Step-by-step explanation:
Given,
The number of stories in 11 buildings are 17,19,20,21,24,30,33,37,38,40,40
To find the median and mode of the data.
Formula
Mean = sum of the data ÷ number of terms
If the number of term is odd, the median = 
th term
Mode = 3 Median - 2 mean
Now,
Mean = (17+19+20+21+24+30+33+37+38+40+40)÷11 = 29
Median = 
th term = 6th term = 30
Hence,
Mode = 3×30-2×29
= 90-58 = 32
