![durham953](/avatars/9711.jpg)
durham953
15.01.2020 •
Mathematics
13. model with mathematics. three friends went to lunch. they all
ordered the same meal. at the end of lunch, they gave the waiter a
$12 tip.
Solved
Show answers
More tips
- H Health and Medicine Hangover: How to Get Rid of It Quickly?...
- A Auto and Moto How to Start a Diesel Engine in Cold Weather?...
- A Auto and Moto Which alarm system to choose?...
- P Photography and Videography What is lens calibration and why is it needed?...
- S Science and Technology How to Choose a Picture Frame: Tips and Recommendations...
- P Photography and Videography Understanding HDR: How It Works and Why You Need It...
- P Photography and Videography How to Choose the Perfect Photo Paper for Your Images?...
- C Computers and Internet How to Choose an Uninterruptible Power Supply (UPS) for Your Computer: Expert Tips...
- S Science and Technology How to choose a home theater system?...
- A Auto and Moto How to Choose a Car Wash? Tips and Recommendations...
Answers on questions: Mathematics
- M Mathematics What is the value of a if a equals to axaxa=a+a+a...
- M Mathematics In market E the utility is U(x)=3+5x-0.2x^2. In market N the utility is 20% more than in market E. What is the utility function of consumers in market N?...
- M Mathematics Rani rai sold two typewriters at Rs 1980 each . if the gained 10% in one and lost 10% in other find the gain or loss percentage she made....
- M Mathematics A nonprofit bank that provides loans to small entrepreneurs in developing countries is considering organizing a mandatory training on good financial practices for...
- M Mathematics A newspaper reported on the results of an opinion poll in which adults were asked what one thing they are most likely to do when they are home sick with a cold...
- M Mathematics Pls help i dont know what to do...
- M Mathematics A tv bought at Rs 30000 is sold at again of 15%. find the Sp of Tv...
- M Mathematics Diego and Bradley began arguing about who did better on their tests, but they couldn t decide who did better given that they took different tests. Diego took a...
- M Mathematics What fraction is exactly midway between 1/5 and 1/7...
- M Mathematics A researcher wanted to determine if there was a relationship between new home sales (X) and appliance sales (Y) so data were gathered from 12 cities from the previous...
Ответ:
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 $7.50?
Source: Previous question found at
Step-by-step explanation:
A. If the three friends ordered the same meal, we have then:
x = Cost of the meal
Tip = US$ 12
3x + 12
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
22.50 + 12 = 34.50
Ответ:
-44 4/9
Step-by-step explanation: