Alma borrows money from her mom to buy a $150 bike. She gives her mom $40 at the time of purchase and continues to pay her $10 each month until the bike is paid for in full. Alma wrote this equation to represent the amount y that she will have paid her mom after x months. Equation:y 5 40x 1 10Is her equation correct? How did she get that equation? If it is not correct, write a correct equation.

Given:

Total amount of bike = $150

Alma gives her mom $40 at the time of purchase and continues to pay her $10 each month until the bike is paid for in full.

Alma's equation:

To find:

Whether her equation is correct or not.

Solution:

Let y be the amount that she will have paid her mom after x months.

She pays $10 each month.

She will $10x in x months.

Initially she gives $40 to her mom at the time of purchase. So, total amount she pays after x months is

Total amount

Since, y represents the amount that she will have paid her mom after x months, therefore

Alma multiply the variable x with 40 instead of 10.

Hence, Alma is incorrect and the correct equation is .

hi

step-by-step explanation:

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.