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kodGreya [7K]
3 years ago
9

Martina got a prepaid debit card with $20 on it. For her first purchase with the card, she bought some bulk ribbon at a craft st

ore. The price of the ribbon was 19 cents per yard. If after that purchase there was $15.63 left on the card, how many yards of ribbon did Martina buy?
Mathematics
1 answer:
Daniel [21]3 years ago
4 0

Phone card = $20  

You need to minus 17.92 from 20 = $2.08  

$2.08 / 0.13 = how many minutes  

= 16

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-1/3(6x-15)+6x>8x-11 solve.
arsen [322]

In this question, you're solving the inequality for x.

Solve:

-1/3(6x - 15) + 6x > 8x - 11

Distribute the -1/3 to the variables in the parenthesis.

-2x + 5 + 6x > 8x - 11

Combine like terms

4x + 5 > 8x - 11

Subtract 8x from both sides

-4x + 5 > - 11

Subtract 5 from both sides

-4x > -16

Divide both sides by -4, while also flipping the inequality, since you're dividing by a negative.

x < 4

Answer:

x < 4

7 0
3 years ago
A theatre group sold a total of 440 tickets for a show, making a total of $3940. Each regular ticket cost $5, each premium ticke
valentina_108 [34]

Answer: 330 regular tickets, 46 premium tickets and 64 elite tickets were sold.

Step-by-step explanation:

Let x represent the number of regular tickets that were sold.

Let y represent the number of premium tickets that were sold.

Let z represent the number of elite tickets that were sold.

The theatre group sold a total of 440 tickets for the show. It means that

x + y + z = 440- - - - - - - - - -1

Each regular ticket cost $5, each premium ticket cost $15, and each elite ticket cost $25. The total amount made from the show was $3940. It means that

5x + 15y + 25z = 3940- - - - - - - - - 2

The number of regular tickets was three times the number of premium and elite tickets combined. It means that

x = 3(y + z)

x = 3y + 3z

Substituting x = 3y + 3z into equation 1 and equation 2, it becomes

3y + 3z + y + z = 440

4y + 4z = 440- - - - - - - - - - - - -3

5(3y + 3z) + 15y + 25z = 3940

15y + 15z + 15y + 25z = 3940

30y + 40z = 3940 - - - - - - - - - - 4

Multiplying equation 3 by 10 and equation 4 by 1, it becomes

40y + 40z = 4400

30y + 40z = 3940

Subtracting, it becomes

10y = 460

y = 460/10

y = 46

Substituting y = 46 into equation 3, it becomes

4 × 46 + 4z = 440

184 + 4z = 440

4z = 440 - 184

4z = 256

z = 256/4

z = 64

x = 3(y + z) = 3(46 + 64)

x = 330

4 0
3 years ago
Giselle made 24 1/8 ounces of lemonade. She sampled 1 1/2 ounces to make sure it is not too sour. How much lemonade is left? Exp
vivado [14]

step.1 turn both of the numbers into fraction

24x8=192, because 8 out of 8 is 1. Plus one equals to 193/8

1x2=2 plus 1 equals to 3. 3/2

step.2 turn the bottom numver the same

because 2x4 is 8 from the bottom

3x4 is 12 so the lemonade she sampled is 12/8

step.3 substract

193/8-12/8you keep the bottom the same substract the top.

193-12

the answer is : 181/8

8 0
3 years ago
Two ways to write 15-b
GaryK [48]
The Answer: (-b + 15) (15 - b)
7 0
3 years ago
1,995,298 rounded to the nearest ten thousand
ss7ja [257]
200,000,000 that your answer

6 0
3 years ago
Read 2 more answers
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