KimikoBojanowski381
Answered

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:

An x 7
B7n
Cn/7
D7/n

Verified Answer :

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 \(1 \times 2 = 2\), of 2 and 3 is \(2 \times 3 = 6\), and so on...
  • Thus, the product of a number n and 7 is: \(n(7)\)
  • The multiplication is comutative, thus \(n(7) = 7n\), which means that option b is correct.
  • Another symbol for the multiplication is \(\times\), thus \(n \times 7 = 7 \times n\) 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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