Answer:
Step-by-step explanation:
so let’s say x is the length. Then the width will be 3x-4. You add them together and multiply by two. The perimeter is 72 so the equation equala 72.
Equation:
(x+3x-4)*2=72
(4x-4)*2=72
8x-8=72
8x=80
x=10
length:10
width:26
Answer: $554,190
Step-by-step explanation:
637,000 x .13= 82,810
637,000- 82,810= 554,190
So distributive property of multiplication says
a(b+c)=(ab)+(ac)
so 2/3(6x+12)=((2/3)6x)+((2/3)12)=12/3x+24/3=4x+8=4(x+2)
Answer:
first one is simnple cross multiply and divide
12*7=4x
84=4x
x=21
2nd same process but more steps
7x=5(x+8)
7x=5x+40
7x-5x=40
2x=40
x=20
Step-by-step explanation:
Answer:
（-1,-1）（2,0）（4,-20）
Step-by-step explanation:
（-1,-1） = -5 › -6 √
（0,-9） = -9 › -6 ×
（2,0） = 8 › -6 √
（-3,6） = -6 › -6 ×
（4,20） = -4 › -6 √
