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shutvik [7]
3 years ago
7

If 20 articles cost ? 90, then the cost of 9 articles is ? ? 45 ? 4.50 ? 40.50 ? 42

Mathematics
1 answer:
lapo4ka [179]3 years ago
5 0

Answer:

40.50 is correct answer according to me

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What is the solution of 3x + y = 9 and 3x − 5y = 15?
erma4kov [3.2K]

Answer:

Multiply the first equation by five to yield, 15x + 5y = 45. Add this equation to the second equation from the given,

                                      15x + 5y = 45

                            +         3x - 5y = 15

The answer would be 18x = 60. The value of x is 10/3. Therefore, the answer to this item is letter A.

Read more on Brainly.com - brainly.com/question/1504559#readmore

Step-by-step explanation:

5 0
4 years ago
Max bought twice the amount of apples that Jenna bought. Together they bought 18 pounds of apples. How many pounds of apples did
Natali5045456 [20]
2x+x=18

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6 0
3 years ago
A company has to buy computers and printers. Each computer, x, costs $525 and each printer, y, costs $315. If the company spends
777dan777 [17]
I think it is the answer b because I think it the right choice I think you should choose B ok have a great day.
8 0
3 years ago
Solve for g. <br> 5.1g = 35.7 <br> Enter your answer in the space below. <br><br> g =
telo118 [61]
5.1g = 35.7

5.1g/5.1 = 35.7/5.1

g = 35.7/5/1

g = 7

hope this helps
4 0
3 years ago
Six groups of students sell 162 balloons at the school carnival. there are 3 students in each group. if each student sells the s
Marina CMI [18]
Since there are six groups of student and each group consists of 3 students, therefore, the total number of students is 18. All of them sold 162 balloons. In order to know how many balloons each student sold, we just have to divide 162 by 18 and the answer is 9. Hope this answers your question.
4 0
3 years ago
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