KimikoBojanowski381
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Demarco wrote two correct variable expressions to represent the phrase “the product of a number and 7.” Which of these variable expressions could Demarco have written? Choose exactly two answers that are correct. Question 1 options:
a. n x 7
b. 7n
c. n/7
d. 7/n

Respuesta :

Kytten
a and b because the "product" is the answer to multiplication, and those are the only answers where 7 and n are being multiplied. Answer b is technically more correct than a is because the coefficient should come before the variable.

Using multiplication concepts, it is found that the correct options are:

a. n x 7

b. 7n

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  • The number is unknown, so we are going to call it n.
  • The product of 1 and 2 is [tex]1 \times 2 = 2[/tex], of 2 and 3 is [tex]2 \times 3 = 6[/tex], and so on...
  • Thus, the product of a number n and 7 is: [tex]n(7)[/tex]
  • The multiplication is comutative, thus [tex]n(7) = 7n[/tex], which means that option b is correct.
  • Another symbol for the multiplication is [tex]\times[/tex], thus [tex]n \times 7 = 7 \times n[/tex] are possible options, which means that option a is correct.

A similar problem is given at https://brainly.com/question/20742606

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