Question

ann drove her go - kart around a track 5 times. she drove a total of 8.5 kilometers.
(a) let d be the distance around the track (in kilometers). write an equation that can be used to find d. first choose an appropriate form. then fill in the blanks with the letter d and the numbers 5 and 8.5.
there are four operation - form options:
□+□ = □
□ - □ = □
□×□ = □
□÷□ = □
(b) solve your equation for d to find the distance around the track.
□ kilometers

Explanation:

Part (a)

Step1: Identify the relationship

Ann drove around the track 5 times, and each time the distance is \( d \) kilometers. So total distance is 5 times \( d \), which equals 8.5 km. So the operation is multiplication.

Step2: Form the equation

The multiplication form \( \square \times \square=\square \) is appropriate. Substituting, we get \( 5 \times d = 8.5 \) (or \( d \times 5 = 8.5 \)).

Part (b)

Step1: Start with the equation

We have \( 5d = 8.5 \).

Step2: Solve for \( d \)

Divide both sides by 5: \( d=\frac{8.5}{5} \).

Step3: Calculate the value

\( \frac{8.5}{5}=1.7 \).

Answer:

s:
(a) The equation is \( \boldsymbol{5 \times d = 8.5} \) (or \( \boldsymbol{d \times 5 = 8.5} \)) using the \( \square \times \square=\square \) form.
(b) \( \boldsymbol{1.7} \) kilometers.