Question
X.3 Evaluate two-variable equations: word problems
YJT
This equation shows how the total number of postcards Lara buys is related to the number of days she spends on vacation.
p = 2d
The variable d represents the number of days she spends on vacation, and the variable p represents the total number of postcards she buys. After 3 days of vacation, how many total postcards will Lara have bought?
postcards
YJT
This equation shows how the total number of postcards Lara buys is related to the number of days she spends on vacation.
p = 2d
The variable d represents the number of days she spends on vacation, and the variable p represents the total number of postcards she buys. After 3 days of vacation, how many total postcards will Lara have bought?
postcards
Answers
GPT-4o mini
To find the total number of postcards Lara buys after 3 days of vacation, we can substitute \( d = 3 \) into the equation \( p = 2d \).
Plugging in the value:
\[
p = 2(3)
\]
\[
p = 6
\]
Therefore, after 3 days of vacation, Lara will have bought a total of **6 postcards**.
Plugging in the value:
\[
p = 2(3)
\]
\[
p = 6
\]
Therefore, after 3 days of vacation, Lara will have bought a total of **6 postcards**.