1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Whitepunk [10]
3 years ago
14

A used bookstore sells hardback books and paperback books.A hardback book costs $11, including tax.A paperback book costs $5, in

cluding tax.Jamal bought 3 more paperback books than hardback books.Jamal spent $47. How many paperback books did Jamal buy? A.2 B.3 C.4 D.5
Mathematics
1 answer:
Ket [755]3 years ago
6 0

Answer:

D.5

Step-by-step explanation:

You can write the following equations from the information given:

y=x+3 (1)

11x+5y=47 (2)

x is the number of hardback books

y is the number of paperback books

You can replace (1) in (2):

11x+5(x+3)=47

11x+5x+15=47

16x=47-15

16x=32

x=32/16

x=2

Then, you can replace the value of x in (1) to find the value of y:

y=2+3

y=5

According to this, the answer is that Jamal bought 5 paperback books.

You might be interested in
Assume the sample is a random sample from a distribution that is reasonably normally distributed and we are doing inference for
e-lub [12.9K]

Answer:

a) Hence the endpoints of a t-distribution with 5% beyond them in each tail if the sample has size n=12 is ± 1.796.

b) Hence the endpoints of a t-distribution with 1% beyond them in each tail if the sample has size n=20 is ± 2.539.

Step-by-step explanation:

Here the answer is given as follows,

5 0
3 years ago
2/18 +15/18 =17/18?
NeX [460]

Answer:

17/18

Step-by-step explanation:

2 /18  +  15 /18

=  2 /18  +  15/ 18

=  2+15 /18

=  17 /18

4 0
3 years ago
HELP PLSSS, 20 POINTSSS
ruslelena [56]

Answer:

m1=43

Step-by-step explanation:

78-35=43

8 0
3 years ago
Read 2 more answers
What is the gcf for 13 and 17
Yanka [14]

Answer:  GCF of 13 and 17 is 1. 2.

Step-by-step explanation: Greatest common factor (GCF) of 13 and 17 is 1. We will now calculate the prime factors of 13 and 17, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13 and 17.

8 0
3 years ago
Read 2 more answers
for a field trip 4 students rode in cars and the rest filled nine buses. how many students were in each bus if 472 students were
Lemur [1.5K]
The answer is 52

x - the number of students in a bus

4 + 9x = 472
9x = 472 - 4
9x = 468
x = 468 / 9
x = 52
4 0
3 years ago
Read 2 more answers
Other questions:
  • Alexandra purchases two doughnuts and three cookies at a doughnut shop and is charged $3.30. Brianna purchases five doughnuts an
    13·1 answer
  • What is the slope of the graph?
    8·1 answer
  • Complete the table for the equation Then use the table to graph the equation
    6·1 answer
  • PLEASE HELP I GIVE THANKS
    6·1 answer
  • 3.6 (5 x 4) ÷ 3 + 5.0
    10·2 answers
  • You roll a die 100 times interested in finding the number of rules that come up even. Which of the following reasons is needed t
    13·2 answers
  • Water level in a well was 20m below ground level. During rainy season, rainwater collected in different water tanks was drained
    15·1 answer
  • The designer wants to determine how much water is covered on the surface once the pond is filled up, she claims that the Area wo
    12·1 answer
  • A survey of birds in Forests A and B counted the number of robins and sparrows. Use the resulting frequency table to find each p
    15·1 answer
  • Every day in gym class, the fourth graders warm up and play a game. Today, the class warmed up for 8 minutes. Then, they played
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!