Answer:
1,4.7
Step-by-step explanation:
x + y = 179
2/3x + 3/4y = 128
^ these are the equations
x + y = 179 -multiply by 3
2/3x + 3/4y = 128-multiply by -4
--
3x + 3y = 537 (result of multiplying by 3)
-8/3x - 3y = -512 (result of multiplying by -4)
--add
1/3x = 25
x = 25 * 3
x = 75
--
x + y = 179
75 + y = 179
y = 179 - 75
y = 104
(is this better?)
Answer:
I couldn't see the picture it is black
Step-by-step explanation:
the formula for the area of a trapezoid is:
insert 7 for b1, 13 for b2, and 10 for h
100
Hope that helps
Isolate x on one side of the equation.
15+4x=3x-7
15+4x-4x=3x-7-4x
15=-7-x
15+7=-7+7-x
22=-x
x=-22
A. 15
0 +0=0
0 +1 = 1
1+2=3
3+3=6
6+4=10
10+5 = 15
1/5 is 2% or 0.2, therefor 2/5 is 4% or 0.4
