** Word Question Help :c
Jared is on a new exercise regimen. To begin, his trainer does not want him to complete more than a total of 17 lunges and sit-ups. For every lunge that he completes, Jacob burns 30 calories. He burns an additional 20 calories for every sit-up. His goal is to burn at least 420 calories during a workout session. Which is a combination of lunges and sit-ups that Jacob can complete in a session?

11 lunges and 5 sit-ups

12 lunges and 6 sit-ups

9 lunges and 7 sit-ups

10 lunges and 4 sit-ups

Question

** Word Question Help :c
Jared is on a new exercise regimen. To begin, his trainer does not want him to complete more than a total of 17 lunges and sit-ups. For every lunge that he completes, Jacob burns 30 calories. He burns an additional 20 calories for every sit-up. His goal is to burn at least 420 calories during a workout session. Which is a combination of lunges and sit-ups that Jacob can complete in a session?

 11 lunges and 5 sit-ups

 12 lunges and 6 sit-ups

 9 lunges and 7 sit-ups

 10 lunges and 4 sit-ups

whpalmer4 · Answer

Okay, he can't do more than 17 lunges and situps.  Go through the list and strike any possibility that have more than 17 exercises.

For the rest of the list, make a table showing how many calories are burned.  Eliminate the ones that don't produce at least 420 calories.  Hopefully, you'll have exactly one choice left.

whpalmer4 · Answer

calories burned = 30L + 20S if L is number of lunges and S is number of situps

anonymous · Answer

30(10)+20(4)=380 <---- @whpalmer4