X.3 Evaluate two-variable equations: word problems

Question

YJT
This equation shows how the amount of jam Jen has jarred is related to the number of days she has spent making jam.

j = 8d

The variable d represents the number of days spent making jam, and the variable j represents the amount of jam jarred. How much jam did Jen jar if she spent 2 days making jam?

liters

Answer 1

To find out how much jam Jen jarred after spending 2 days making jam, you can use the equation given:

\[ j = 8d \]

where \( j \) is the amount of jam jarred and \( d \) is the number of days spent making jam.

Substitute \( d = 2 \) into the equation:

\[ j = 8(2) \]

Now, calculate:

\[ j = 16 \]

Therefore, Jen jarred 16 liters of jam after spending 2 days making jam.