Step 1: Simplify both sides of the inequality.
10x+20<40
Step 2: Subtract 20 from both sides.
10x+20−20<40−20
10x<20
Step 3: Divide both sides by 10.
<
x<2
To evaluate, we need to follow the order of operations. Below are the steps taken in order:
16 * 3 + [(17 - 3) / 2] - 43
16 * 3 + [14 / 2] - 43
16 * 3 + 7 - 43
48 + 7 - 43
55 - 43
12
Therefore the answer is 12.
I can't solve #2 without numbers
If you would like to solve the system of equations 2r + 2s = 50 and 2r - s = 17, you can do this using the following steps:
<span>2r + 2s = 50
2r - s = 17 ... 2r = 17 + s
</span>____________
<span>2r + 2s = 50
</span>17 + s + 2s = 50
17 + 3s = 50
3s = 50 - 17
3s = 33
s = 33/3
s = 11
<span>2r = 17 + s = 17 + 11 = 28
</span>2r = 28
r = 28/2
r = 14
(r, s) = (14, 11)
The correct result would be <span>d. r = 14, s = 11.</span>
Answer:
it's option addition property of equality