$27.00x.15=4.05
27.00+4.05=$31.05
$31.05/3= 10.35
Each person will pay $10.35
Answer:
Step-by-step explanation:
let 25 % copper=x kg
75 % copper=(100-x) kg
0.25 x+(100-x)*0.75=100*0.61
25x+7500-75 x=6100
-50 x=-1400
50 x=1400
5x=140
x=28
25 % of Copper=28 kg
75 % of Copper=100-28=72 kg
Answer:
16.4
Step-by-step explanation:
3(5x−80)3=3x−20
Answer:
AE = 70
Step-by-step explanation:
since triangle BDF bisects each side of triangle AEC, then triangle BDF is a medial triangle and the result is the following:
all four triangles are congruent (their sides are proportional)
sides that measure 25: BA, BC, DF
sides that measure 30: CD, DE, FB
sides that measure 35: FA, FE, BD
if FA = 35 and FE = 35 then AE = 70
Answer: 4
Since we need to find the y, we're going to substitute the x's with the numbers in the x column.
Let's try to find the first y box.
We're going to substitute all of the x's with -0.5.
y = 4(-0.5)^2 - 8(-0.5) + 4
Now, we're just going to solve that.
-2^2 - 4 + 4
-2 squared is 4. It's a positive 4 because a negative times a negative is a positive.
4 - 4 + 4
= 4
