A grocery clerk put only packages of flour tortillas and packages of corn tortillas on a shelf . The ratio of the number of packages of corn tortillas to the total number of packages on the shelf was 7 to 16. Which number could be the number of packages of flour tortillas the clerk put on the shelf

Respuesta :

Answer:

The number of packages of flour tortillas is a 9 multiple.

Step-by-step explanation:

Given there are only packages of flour tortillas and packages of corn tortillas on the shelf.

Let the number of flour tortillas be x and the number of corn tortillas be y

therefore the total number of packages are x+y.

Given the ratio of the number of packages of corn tortillas to the total number of packages on the shelf was 7 to 16.

which means [tex]\frac{y}{x+y} = \frac{7}{16}[/tex]

[tex]16y = 7x+7y[/tex]

[tex]7x=9y[/tex]

[tex]x=\frac{9y}{7}[/tex]

since both x and y are integers y is in the form of 7k where k∈N.

[tex]x=9k[/tex]

Therefore x is a 9 multiple.

The number of packages of flour tortillas the clerk put on the shelf is multiple of 9.

Given that:

  • Clerk put packages of corn tortillas and flour tortillas on the shelf.
  • The ratio of the number of packages of corn tortillas to the total number of packages on the shelf is  7:16

Calculations:

Let there are x number of corn tortilla packages

Let there are y number of flour tortilla packages.

Total number of packages on the shelf = x + y

Then, by given data, we have:

[tex]\dfrac{7}{16} = \dfrac{x}{x+y}\\\\7x + 7y = 16x\\\\7y = 9x\\\\y = \dfrac{9}{7}x\\[/tex]

Since y is the count of number of flour tortilla packages, thus its integer and as 9 and 7 are relative primes, thus we have x as multiple of 7 and y as multiple of 9.

Thus, number of packages of flour tortillas the clerk put on the shelf is multiple of 9.

Learn more about ratio related problems here:

https://brainly.com/question/1504221