First distribute 1/2 into (9-2x) which would give you:
4.5-1x= x+1
then you add 1x to each side and you will get:
4.5=2x+1
then you subtract 1 from each side and you will get:
3.5=2x
finally divide 3.5 by 2 and you will get:
x = 1.75
Hope this helps
12.5% of 140g is 17.5
add that to 140 and you get 157.5g
I am assuming that the cost of an oil change already includes the mark-up.
So, 18 is 175%. 18 ÷ 1.75 = 10.29 is the original cost.
10.29 * 3/4 = 30.87/4 = 7.71 mark-up
10.29 + 7.71 = 18
Or if 18 is the basis of the mark-up, then,
18 * 3/4 = 54/4 = 13.50 mark-up
18 + 13.50 = 31.50 new cost of an oil change
The difference between crystalline and amorphous polymers is that in crystalline polymers, the atoms are arranged in a regular pattern such that every part of the pattern is homogenous, while amorphous has irregular lattices.
Answer: 110°
<u>Step-by-step explanation:</u>
∠A ≅ ∠B
since ∠A = 35° (given), then ∠B = 35°
Use the Triangle Sum Theorem to find ∠C:
∠A + ∠B + ∠Q = 180°
35° + 35° + ∠Q = 180°
70° + ∠Q = 180°
∠Q = 110°
The central angle (∠AQB) ≅ arc AB
since ∠AQB = 110° (solved above), then arc AB = 110°
