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lara [203]
3 years ago
5

13. Model with mathematics. Three friends went to lunch. They all

Mathematics
1 answer:
zaharov [31]3 years ago
3 0

Answer:

A. 3x + 12

B. US$ 34.50

Correct question and statement: Three friends went to lunch. They all ordered the same meal. At the end of lunch they gave the waiter a $12 tip.  

A. Write a algebraic expression to represent the situation.  

B. How much total money was spent if each meal cost $7.50?

Source: Previous question found at brainly

Step-by-step explanation:

A. If the three friends ordered the same meal, we have then:

x = Cost of the meal

Tip = US$ 12

<u>3x + 12 </u>

Total of the meal would be three times the cost of the individual meal, x, plus the tip.

B. Given that x = 7.50, how much was the total cost?

Let's use the equation we wrote in part A.

3x + 12

3 (7.50) + 12

<u>22.50 + 12 = 34.50</u>

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