19) 20)
The expression would be:
3x+4x+5x
If x=8, the perimeter would be:
3(8)+4(8)+5(8)
24+32+40
=96 feet
21) 22)
The expression would be:
x+14+5+7+5.5+2x
If x=10.5, the perimeter would be:
10.5+14+5+7+5.5+2(10.5)
10.5+14+5+7+5.5+21
=63 feet
Hope this helps.
-Benjamin
Answer:
602.44
Step-by-step explanation:
13.5 times 10.5 equals 141.75 square feet
then 141.75 times 4.25
Answer:
6 cups
Step-by-step explanation:
24*1/4 (1 quarter=1/4)
24/4
6 cups
2x^2+7x-4=0
Δ=7^2-4*2*(-4)
Δ=49+32
Δ=81
x1=(-7+V81)/4=(-7+9)/4=2/4=1/2
x2=(-7-9)/4=-16/4=-4
the solutions: x1= 1/2 and x2= - 4
Answer:
1
Step-by-step explanation:
- 3/5 divided by 12/20 = 3/5 * 20/12 = 60/60 = 1
