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Alina [70]
3 years ago
8

Ryan is opening up a bookstore, where he sells both new and old books. He

Mathematics
2 answers:
tigry1 [53]3 years ago
6 0

Answer:

Ryan earned $27500 selling books

Step-by-step explanation:

25×5.50=137.5

12.50×16=200

137.5+200=27500

Gennadij [26K]3 years ago
5 0

Step-by-step explanation:

x= new books

y= old books

(to help keep track)

12.50x + 5.50y or 12.50(16) + 5.50(25)

so 337.50 in revenue

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A school district transported a total of 409 students and teachers to a zoo in buses and vans.
valina [46]

Answer: There are 385 students and teachers who rode to the zoo in buses and 24 students and teachers who rode to the zoo in trains.

Step-by-step explanation:

Since we have given that

Total number of students and teachers = 409

Let the number of vans be x

Let the number of buses be x+5

Number of students and teachers each bus transported = 55

Number of students and teachers each van transported = 12

According to question,

55(x+5)+12x=409\\\\55x+275+12x=409\\\\67x=409-275\\\\67x=134\\\\x=\frac{134}{67}\\\\x=2

Total number of students and teachers who rode to the zoo in buses will be

55(x+5)\\\\=55(2+5)\\\\=55\times 7\\\\=385

Total number of students and teachers who rode to the zoo in vans will be

12x\\\\=12\times 2=24

Hence, there are 385 students and teachers who rode to the zoo in buses and 24 students and teachers who rode to the zoo in trains.

6 0
3 years ago
∆PQR has vertices P(5, –2), Q(1, –4), and R(3,3).Reflect ∆PQR about the y-axis, translate 4 units down, and reflect about the x-
JulsSmile [24]

Answer:

P(-5,6) Q(-1,8) R(-3,1)

3 0
3 years ago
Please help!!! i need this done by tonight!! 50 points!!
Vinil7 [7]

The equation of best fit is y = (-22/5)x + 10.

What is an equation of a line?

The equation of a line is given by:

y = mx + c where m is the slope of the line and c is the y-intercept.

Example:

The slope of the line y = 2x + 3 is 2.

The slope of a line that passes through (1, 2) and (2, 3) is 1.

We have,

The following coordinates are given:

Pick two coordinates.

(0, 10) and (25, -100)

The equation of best fit.

y = mx + c

Now,

m = (-100 - 10) / (25 - 0)

m = -110 / 25

m = -22/5

Now,

(0, 10) = (x, y)

10 = (-22/5) x 0 + c

c = 10

Now,

y = mx + c

y = (-22/5)x + 10

Thus,

Using the coordinates the equation of best fit is y = (-22/5)x + 10.

Learn more about equation of a line here:

brainly.com/question/23087740

#SPJ1

5 0
1 year ago
Anthony got a new iPhone. He needs to create a 4-digit passcode. How many passcodes can be created if REPETITION OF DIGITS IS AL
Snezhnost [94]
An infinite amount...since there ARE and infinite amount of number in the universe.

1111

2222

3333

4444

5555

6666

7777

8888

9999


1010

1234

4321

5432

2345

5678

8765

0987

7890

4509

9054

Etc
7 0
4 years ago
Given the hyperbola y = 1/x, find the area under the curve between x = 5 and x = 33 to 3 sig. dig. namely: integral subscript 5
Shtirlitz [24]

Answer:

(b) ln(33/5)

Step-by-step explanation:

\int\limits_{5}^{33}  \frac{1}{x} \, dx = \ln(x)  \Big|\limits_{5}^{33} = \ln(33) - \ln(5) \\\\= ln(33/5)

Remember that  in general

\ln(a) - \ln(b) = \ln(a/b)

4 0
3 years ago
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