Question

The number of candy bars Sarah can eat is 3 times the amount her dog can eat. On a Monday in the month of January, Sarah and her dog ate a total of 40 bars! How many did Sarah eat?

Answer 1

lets call "x" to the number of candy bars Sarah can eat and "y" to the amount the dog can eat, our first equation would be:
"The number of candy bars Sarah can eat is 3 times the amount her dog can eat"
translate it to X and y language:
"X is 3 times Y"
and to equations:
\[x=3y\]
it is your turn to write the second one:
"Sarah and her dog ate a total of 40 bars"