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Read the description of a proportional relationship:

Every few years, Franco's entire family gets together for a family reunion. This year, Franco's parents are hosting, and they have to cook a lot of food to feed the crowd. Franco has volunteered to do the most tedious job: shelling peas. There is a proportional relationship between the amount of time (in minutes) Franco spends shelling peas, [tex] x [/tex], and the weight (in pounds) of the peas he has shelled, [tex] y [/tex].

The equation that models this relationship is [tex] y = 0.4x [/tex].

How long does it take Franco to shell 18 pounds of peas? Write your answer as a whole number or decimal.

[tex] \square [/tex] minutes

Answer :

Sure! Let's solve this step-by-step:

We have a proportional relationship between the time Franco spends shelling peas (in minutes) and the weight of the peas in pounds. The relationship is described by the equation:

[tex]\[ y = 0.4x \][/tex]

Here, [tex]\( y \)[/tex] is the weight of the peas in pounds, and [tex]\( x \)[/tex] is the time in minutes.

The problem asks us to find out how long it takes Franco to shell 18 pounds of peas. So, we need to determine the value of [tex]\( x \)[/tex] when [tex]\( y = 18 \)[/tex].

We can use the equation to solve for [tex]\( x \)[/tex]:

1. Start with the equation:
[tex]\[ y = 0.4x \][/tex]

2. Substitute the given [tex]\( y \)[/tex] value (18 pounds) into the equation:
[tex]\[ 18 = 0.4x \][/tex]

3. To isolate [tex]\( x \)[/tex], divide both sides of the equation by 0.4:
[tex]\[ x = \frac{18}{0.4} \][/tex]

4. Calculate [tex]\( x \)[/tex]:
[tex]\[ x = 45.0 \][/tex]

So, it takes Franco 45.0 minutes to shell 18 pounds of peas.

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