18 is the answer because eighteenth has nth in the ending
Answer:
a fixed sum of money paid to someone each year, typically for the rest of their life.
<span>Shortest side = x, Longest Side = 4x-1, third side = 18
Equation is x + (4x-1) + 18 = 42 so 5x-1 = 42-18=24 and 5x=25 so x = 5, longest side = 4(5)-1=19, third side=18
Add all 3 (5+19+18) to get 42</span>
Answer:
-10x + 28
Step-by-step explanation:
Step 1: Write expression
3 - 5(2x - 5)
Step 2: Distribute -5
3 - 10x + 25
Step 3: Combine like terms
-10x + 28
Step-by-step explanation:
let the numbers x and y
so x + y =13
x - y = 5
add two equations together
2x = 18
divide both side by 2
x = 9
sub in any equation
9 + y =13
y = 4
the numbers are 9 and 4
