3 The equation $$ m=40 g $$ gives the distance in miles, $$ m $$, that a car can travel using $$ g $$ gallons of gas. (a) If the car has gone 140 miles, how much gas was used? gallons

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To determine how much gas was used when the car has traveled 140 miles, you can use the given equation:

$$
m = 40g
$$

where:
- $$ m $$ is the distance traveled in miles.
- $$ g $$ is the gallons of gas used.

Given:
$$
m = 140 \text{ miles}
$$

**Step 1: Plug the known value into the equation**

$$
140 = 40g
$$

**Step 2: Solve for $$ g $$**

$$
g = \frac{140}{40}
$$
$$
g = 3.5
$$

**Answer:**
The car used **3.5 gallons** of gas to travel 140 miles.
The car used 3.5 gallons of gas to travel 140 miles.

3 The equation gives the distance in miles, , that a car can travel using gallons of gas.
(a) If the car has gone 140 miles, how much gas was used?
gallons

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3 The equation gives the distance in miles, , that a car can travel using gallons of gas. (a) If the car has gone 140 miles, how much gas was used? gallons