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denis-greek [22]
3 years ago
7

Which of the following choices translates the sentence “the difference of three times a number and 20 is 13”?

Mathematics
2 answers:
evablogger [386]3 years ago
8 0

Answer:

3x - 20 = 13

Step-by-step explanation:

1. The word is signals the equal sign.

The difference of three times a number and 20 = 13

2. The word difference signals subtraction.

3. The phrase a number sigals that the number is unknown, so a variable should be used. In this case, I'll use x.

4. Three times that number = 3x.

The difference = subtraction.

3x-20=13

bonufazy [111]3 years ago
7 0

Answer:  the number is 11

3  times a number becomes 3x. is becomes an = sign rhen the given amount, 13

3x - 20 = 13

Step-by-step explanation:

3x - 20 =13

3x = 13 + 20

3x =33

x= 11

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