1) 2x + 9 = 2x -5
9 ≠ -5 ; No solution
2) 2x- 1 = x + 3
x = 4; One solution x = 4
3) x + 2 = x + 2
0 = 0; Identity (or all real numbers)
Answer:
73 mph during the second hour!
Step-by-step explanation:
Hour 1=54 mph
Hour 2=? mph
Hour 3=82 mph
Total=209 mph
this means that 209=82+54+?
Simplify it and you will get 73
73 mph
Answer:
4
Step-by-step explanation:
-3+4+2+1=4
Answer:
11 / 24
Step-by-step explanation:
i'm assuming you mean 1/6
We have to calculate the fraction of Paula`s allowance that she spent on other items if she already had spent 3/8 on clothes and 1/6 on entertainment. First we have to add: 3 / 8 + 1 / 6 = ( LCD is 24 ) = 9 / 24 + 4 / 24 = 13 / 24. Then : 1 - 13 / 24 = 24 / 24 - 13 / 24 = 11 / 24. Answer: She has spent 11 / 24 of her allowance on other items.
