1. Use the FOIL (first, outside, inside, last) method:
F: x*x=x^2
O: x*-2=-2x
I: 3*x=3x
L: 3*-2=-6
x^2-2x+3x-6
<em>*Combine like terms*</em>
x^2+x-6
2. Look for the greatest common factor (GCF) of 15 and 5. It is 5 (15/5=3 and 5/5=1)
5(3x+1)
3. You want to find two numbers whose product is 6 and whose sum is -5. -3 and -2 complete these requirements.
(x-3)(x-2)
4. Solve for x:
<em>*Add x to both sides*</em>
y+x=ab
<em>*Subtract y from both sides*</em>
x=ab-y
8. Plug in 0.5 for x and solve:
10-8(0.5)
10-4
6
10. <em>*Multiply both sides by 5*</em>
2x-3=20
<em>*Add 3 to both sides*</em>
2x=23
<em>*Divide both sides by 2*</em>
x=23/2
I did what I could. Hope I could help!!
Answer: x=16
Step-by-step explanation:
1. 3/4x = x/8+10
2. 3/4(2)= 6/8
3. 6/8x= 1/8x+10
4. 5/8x=10 ÷ 5/8 both sides
5. 5/8= .625 so 10÷ .625= 16
6. x=16
B
subtract 100,000 from 580,000 then divide by 800
Answer:
168
Step-by-step explanation:
24 times 3 is 72 then also 24 times 4 is 96 add that and get 168
Total length = 111.6 metres
(12.3x7) + 15 + 10.5 = total length
