Let X be the first and second number.
X+X = 18
+ X-X = 2
2X = 20 (divide both sides by 2
X = 10
Substitute the values to get the second number
10+X = 18
X = 18 -10
X = 8
Therefore, the numbers are 10 and 8
Answer:
.30 cents
Step-by-step explanation:
11-5=6
6 divided by 20
Are three or more points which lie in the same plane. Recall that a plane is a flat surface which extends without end in all directions. It's usually shown in math textbooks as a 4-sided figure. You can see that points A, B, C and D are all coplanar points on a single plane:

A) 1:3. Add 16, 4, 20, and 8= 48. Then simplify 16:48 = 2:6 = 1:3 :)
Answer:
-25
Step-by-step explanation: the negative/ opposite of 25 is -25