Alicia runs a small business mowing yards in the summer. For every yard she mows, she earns $40. However, she spends part of this money on gasoline for her lawnmower. Each gallon of gasoline costs $3. Write an expression for the amount of money that Alicia earns in a day, where y is the number of yards she mows and g is the number of gallons of gasoline she buys.

$40g + $3y

$40y + $3g

$3g − $40y

$40y − $3g

Respuesta :

Answer:

$40y - $3g

Step-by-step explanation:

it wouldn't be c because the 3 and 40 are on the wrong side. and it wouldn't be a because the y and g are on the wrong number. you should realise that the variables y and g need to go to the corresponding amount and $40 is how much she get by mowing lawns (y) and $3 is how much gasoline costs to take away from her total amount. so its now between b and d. it is d because you are subtracting 3 from 40 because that how much she spent and it takes away from her total.

Option D : $40y − $3g  is correct.

We have the following information about Alicia -

For every yard she mows, she earns $40

She spends part of this money on gasoline which costs $3

We have to find expression for the amount of money that Alicia earns in a day.

What is a linear equation in two variables?

An equation of the form ax + by + c=0, where a, b are the coefficients of x and y and are non -zero and all a, b, and c are real in nature.

Let the amount of money she earns in a day = x

Number of yards she mows in a day = y

Money earned on mowing ' y ' yards in a day = $40 y

Number of gallons of gasoline she buys = g

Amount spent in gasoline in a day = $3 g

Total money earned  = Money earned - money spent on gasoline

x = $40y - $3g

Hence, Option D is correct

To solve more questions on finding the net money earned, visit the link below -

https://brainly.com/question/10237540

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