The expression [tex]$1.5t + 20$[/tex] predicts the height, in centimeters, of a plant [tex]t[/tex] days from today. What is the predicted height, in centimeters, of the plant 5 days from today?



Answer :

To determine the predicted height of the plant 5 days from today using the expression \( 1.5t + 20 \), we can follow these steps:

1. Identify the expression and the variable:
- The expression given to predict the plant's height is \( 1.5t + 20 \), where \( t \) represents the number of days from today.

2. Substitute the value of \( t \) with the given number of days:
- We need to find the height of the plant 5 days from today. Hence, \( t = 5 \).

3. Substitute \( t \) with 5 in the expression:
[tex]\[ 1.5(5) + 20 \][/tex]

4. Calculate the multiplication first:
[tex]\[ 1.5 \times 5 = 7.5 \][/tex]

5. Add the constant value to the result of the multiplication:
[tex]\[ 7.5 + 20 = 27.5 \][/tex]

6. State the final result:
- The predicted height of the plant 5 days from today is \( 27.5 \) centimeters.

Therefore, the predicted height of the plant 5 days from today is 27.5 centimeters.