Answer:
Step-by-step explanation:
2x-5y=20
Making y the subject
-5y = -2x + 20
Dividing by -5
y = -2/-5x + 20/-5
y = 2/5x - 4
So comparing with y = mx + c
Slope m = 2/5
Intercept c = -4
5/18 and the decimal form for that is 0.27777...
Answer:
153.86 
Step-by-step explanation:
Formula for the area of a circle is 
where 
= 3.14 and 
is radius times radius, which in this case is 7 since radius is 1/2 diameter.
So 7 multiplied by 7 = 49 then 49 multiplied by 3.14 = 153.86
Answer:
There are 6 more girls than boys
Step-by-step explanation:
boys :girls : total
2 3 2+3 = 5
There are 30 total students
30/5 = 6
Multiply each number by 6
boys :girls : total
2*6 3*6 5*6
12 18 30
There are 18 girls and 12 boys
18-12 = 6
There are 6 more girls than boys
