4s + 3p = 85.50......multiply by 3
3s + 5p = 115.........multiply by -4
----------------
12s + 9p = 256.50 (result of multiplying by 3)
-12s - 20p = -460 (result of multiplying by -4)
---------------add
-11p = - 203.50
p = -203.50 / -11
p = 18.50 <=== the cost of a pair of pants
3s + 5p = 115
3s + 5(18.5) = 115
3s + 92.50 = 115
3s = 115 - 92.50
3s = 22.50
s = 22.50/3
s = 7.50 <=== the cost of each shirt
The area is 645504 square feet
Answer:
Number 2: -3/10 (I think)
Number 4: 10a-5b-4
Number 6: x=5/2
Number 8: x=6
Step-by-step explanation:
Number 2:
3ysquared/2y-4x2
3(-1)squared/2(-1)-4x2
3x1/2(-1)-4x2
3x1/-10
-3/10
(I might be wrong with this one though)
Number 4:
10a-3b-4-2b
10a-5b-4
Number 6:
2(-3x+8)=4x-9
-6x+16=4x-9
-6x+16-16=4x-9-16
-6x=4x-25
-6x-4x=4x-25-4x
-10x=-25
-10x/-10=-25/-10
x=5/2
Number 8:
1(4x-8)/4=-x+10
4x-8/4=-x+10
4x-8/4+x=-x+10+x
8x-8/4=10
4x8x-8/4=4x10
8x-8=4x10
8x-8=40
8x-8+8=40+8
8x=48
8x/8=48/8
x=6
The answer is 20
Step-by-step explanation:
what is double of 10
20
10 times 2 equals 20
Https://www.youtube.com/watch?v=zsEC8A_3QXw