what is the question pls.
can you pls tell me
Answer: she reduced the area by 10
Answer:
Step-by-step explanation:
So when you use an equation like this, you use the PS2 method. P means you find the product of the first and last numbers in the equation, so in your problem it would be -20. S means the number in front of the 2nd number, and in your problem it would be 1 because anything times 1 is itself. The 2 means that you need to find two numbers that multiply to your product: -20, and the sum which is 1. And the two numbers are -4 and 5. And since it’s equal to zero, it’s x=-5 and x=4. Your welcome
Y=mx+b
x=number of newspapers
37.5 earned for 5 newspapers
37.5=5m+b
earned 75 and deliverd 20 newpapers
75=20m+b
we have
37.5=5m+b and
75=20m+b
multiply first equaiton by -1 and add to other equaiton
-37.5=-5m-b
<u>75=20m+b +</u>
37.5=15m+0b
37.5=15m
divide both sides by 15
2.5=m
sub back to find b
75=2.5(20)+b
75=50+b
minsu 50 both sides
25=b
y=2.5x+25 is lnear funtion