Answer:
DF = 7.5
Step-by-step explanation:
Since the 3 sides are congruent, then
EF = DE , that is
4.5m - 42 = 1.5m - 9 ( subtract 1.5m from both sides )
3m - 42 = - 9 ( add 42 to both sides )
3m = 33 ( divide both sides by 3 )
m = 11
Thus
DE = 1.5m - 9 = 1.5(11) - 9 = 16.5 - 9 = 7.5
Then
DF = 7.5
It will take Sue 7 weeks to catch up with melanie... if you make a chart putting in how much they make each week it is an easier way to solve the problem.
So first you will need to multiply 9 by 4. You get 36. Now you need to add the 10 percent and you get 39.6! That's the answer!
1) Slope equals -0.667/2.000=-0.333
x-intercept =12/1=12.00000
y-intercept =12/3=4
x+3y=12
Answer: 4
2) Slope equals 2
x-intercept=5/2=2.5000
y-intercept=5/-1=-5.00000
Answer: -5.00000
