400
Explanation:
1/3 of 600 is 200. That represents the boys.
Subtract 200 from 600, you get 400. That represents everybody else in the sample size (in this case, girls).
Answer:
B
Step-by-step explanation:
<em>y</em><em>=</em><em>kx</em><em>+</em><em>m</em>
<em>k</em><em>=</em><em>y2</em><em>+</em><em>y1</em><em> </em><em>/</em><em> </em><em>x2</em><em>+</em><em>x1</em><em> </em>
(3,5) and (7,9)
k=(9-5)/(7-3)=4/4=1
Now we want to find out what <em>m</em><em> </em>is. This is by inserting a point in the equation of the line y=kx+m.
so I'll pick (3,5)
5=1×3+m
m= 2
To check if it's correct we could try it with the other point, (7,9).
9=1×7+m
m=2
Therefor the equation would be. y=1x+2
Answer:
90
Step-by-step explanation:
Answer:
12 seconds
Step-by-step explanation:
