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Lelechka [254]
3 years ago
7

Twice a number increased by 11 is equal to 32 less than three times the number. What is the number?

Mathematics
1 answer:
MariettaO [177]3 years ago
6 0

Answer:

21/5 or 4.2

Step-by-step explanation:

2x+11=32-3x

5x+11=32

5x=21

x=21/5

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Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-response question.
weqwewe [10]

Answer:

8(15-m)

Step-by-step explanation:

By looking at the options, we can understand that the right one is 8(15-m), since we need to multiply the time by the number of question.

Also, we can check that result by arranging an equations usint the total time.

55 = 3m - 8(15-m)

55 = 3m - 120 + 8m

55 = 11m - 120

55 + 120 = 11m

175 = 11m

m = 175/11 = 15.91

55 = 3*15.91 - 8(15-15.91) = 47.73 - 120 + 127.28 = 55.01 ≈ 55

6 0
2 years ago
CAN SOMEONE PLEASE HELP
Allushta [10]
4 is the right answer
4 0
2 years ago
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Paula's Flowers sells 39 arrangements per week. The flower shop down the street sells
Eddi Din [679]

Answer:

50:39

Step-by-step explanation:

The first number in the context always goes first!

4 0
3 years ago
The price of one share of stock in BadInvestment.com plunged 14 points in 4 weeks. Find the average change in the stock price pe
kiruha [24]
4 weeks at 7 days per week = (4 x 7) = 28 days

28/-14 = - 2....so the average change is -2 per day
3 0
3 years ago
Point B has coordinates ​(2​,1​). The​ x-coordinate of point A is negative 1. The distance between point A and point B is 5 unit
Gwar [14]

Answer:

A = (-1,5) or  (-1,-3)

Step-by-step explanation:

A = (-1,y)    B = (2,1)

 

(Distance from A to B) = √[(-1-2)² + (y-1)²] = 5

                                    =√[9 + y² - 2y + 1] = 5

Squaring on both sides

                                     =  y² - 2y + 10 = 25

                                       =y² - 2y -15 = 0

                                      = (y-5)(y+3) = 0

                                         y = 5 or -3

Therefore, A = (-1,5) or  (-1,-3)

6 0
3 years ago
Read 2 more answers
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