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WINSTONCH [101]
3 years ago
8

A library is having a used book sale. All hardcover books

Mathematics
2 answers:
PIT_PIT [208]3 years ago
6 0
You have 4 hardcovers and 2 soft covers... soo the equation would be 4x+2y=$24
for the friend the equation would be 3x+3y=$21
KATRIN_1 [288]3 years ago
5 0

Answer:  It should cost $5

Step-by-step explanation:

First you have 4 hardcover and 2 softcover, so 4x+2y= $24 and for your friend it would be 3x+3y= $21.

You have

(3x+3y)2  = 72

(4x+2y)3  = 42

Then subtract them which is 30 you would divide by 6 since 3x2=6

Which gets you to 5.

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Andrew has a cell phone plan that provides 300 free minutes each month for a flat rate of $19
stich3 [128]

Is that the entire question. If you're looking to find the unit price (how much you are being charged for on unit) you can divide 300 by 19 and you get 15.79, which I rounded to the nearest tenth


5 0
4 years ago
in a certain clothing store, the ratio of the number of full-time employees to the number of employees who are not full-time is
gtnhenbr [62]

Answer: Total number of employees are employed by the store = 15 employees.

Step-by-step explanation:

The ratio of Full time employees to Not Full time employees would be 1 to 4.

Let, Full time employees F =1      

Not Full time employees N =4

We can write:

                                F/N = ¼

Cross multiply to get:

                                 N=4F

If 5 more Full time employees were hired, then the ratio would be 2 to 3.

This would be mean there are no (F+5) Full time employees.

Also there are still Not Full time employees.

We can write:

                             (F+5) / N = 2/3

Cross multiply to get:

                              3(F+5) =2N

Expand to get:

                               3F+15=2N

Replace N with 4F to get:      

                               3F+15=2(4F)

Solve to get:

                              3F+15=8F

                              15=8F-3F

                              15=5F

                                F=3

So, there are presently 3 Full time employees.

How many employees does the store have?

Since           F=3,

we can use the equation N=4F

To help find the value of N Replace F with 3 to get:

                              N = 4(3)

Solve to get:

                               N=12

So, Full time employees F=3    

Not Full time employees N=12

Then, Total number of employees = F+N

                                                         = 3+12

                                                         = 15.

Hence, Total number of employees = 15 employees.

Learn more about event correlation here: brainly.in/question/15910549

#21179

8 0
2 years ago
MARKING BRAINLIEST!!! Please help..
iragen [17]

1. 12 mph, 24 miles

2. m=4, y=22

3.15/1, $1500

4. x=30 y=60, k cheaper, j cheaper

6 0
3 years ago
Mickey's bowling score is 16 less
Tpy6a [65]

Mickey's bowling score is 167 and Minnie's bowling score is 61

Step-by-step explanation:

The given is:

1. Mickey's bowling score is 16 less  than 3 times Minnie's score

2. The  sum of their scores is 228

We need to find the score of each one

Assume that the score of Minnie is x

∵ Minnie's score = x

∵ Mickey's score is 16 less  than 3 times Minnie's score

- That means subtract 16 from 3 times Minnie's score

∴ Mickey's score = 3 x - 16

∵ The sum of their scores is 228

- Add their scores and equate the sum by 228

∴ x + 3 x - 16 = 228

- Add like terms in the left hand side

∴ 4 x - 16 = 228

- Add 16 for both sides

∴ 4 x = 244

- Divide both sides by 4

∴ x = 61

Substitute the value of x to find their scores

∵ Minnie's score is x

∴ Minnie's score = 61

∵ Mickey's score is 3 x - 16

∴ Mickey's score = 3(61) - 16 = 167

Mickey's bowling score is 167 and Minnie's bowling score is 61

Learn more:

You can learn more about word problems in brainly.com/question/5248692

#LearnwithBrainly

7 0
4 years ago
Find the value of x!!!!!!
nevsk [136]

Answer:

Sum of 3 angles in a triangle=180

x+55+72= 180

x+ 127=180

x= 180-127

x= 53

5 0
3 years ago
Read 2 more answers
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