Answer:
Susan is 3 years and Debbie is 8 years old. after 2 years Susan will be 5 Years and Debbie will be 10 years old
Step-by-step explanation:
let the present age of Susan be x years then Debbie is x+5 years
in 2 years
x +2 = x+5+2/2
x+2=x+7/2
2x +4 = x+7
x=3
magnitude = sqrt(6^2+4^2)
= sqrt ( 36+16)
=sqrt (52) = 7.2
angle = tan^-1(6/4) = 56 degrees
8
A. Delivery is $20. One cord is $120.
B. 1 1/2 cord costs $200. ($180 for the cord and $20 for the delivery)
(I can’t see the full problem for 9)
Answer:
Can I have a picture/image if possible?
Step-by-step explanation:
Answer:
Step-by-step explanation:
You are given the equation for the number of times, y, that she visits them by distance x. You need only substitute the given x=4 into the equation y(x)
y=-3.5x+20, using x=4
y=-3.5(4)+20
y=-14+20
y=6
So we would expect her to visit her friend four miles away six times a month.
