There are three consecutive multiples of five. The sum of the first two numbers is 1,945. What are the integers?
There are three consecutive multiples of five. The sum of the first two numbers is 1,945.
What are the integers?
\(\begin{array}{rcll} x~ \text{is the multiply of}~ 5 \\ \text{First} &=& x \\ 2\text{nd} &=& x+5 \\ 3\text{rd} &=& (x+5)+5 \\ \end{array} \)
\(\begin{array}{|rcll|} \hline x+x+5 &=& 1945 \\ 2x+5 &=& 1945 \\ 2x &=& 1945-5 \\ 2x &=& 1940 \\ \mathbf{x} &=& \mathbf{970} \\ \hline \end{array}\)
\(\begin{array}{rcll} \text{First} &=& 970 \\ 2\text{nd} &=& 970+5 \\ &=& 975 \\ 3\text{rd} &=& 975+5 \\ &=& 980 \\ \end{array}\)