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
nalin [4]
3 years ago
13

James spent $(2y2 + 6). He bought notebooks that each cost $(y2 − 1). The expression to find the number of notebooks James bough

t is . If y = 3, James bought notebooks. NextReset
Mathematics
1 answer:
navik [9.2K]3 years ago
5 0
The first thing you should do is to<span> divide the total cost by the unit cost you have got: </span><span>(2y^2 + 6) / (y^2 - 1) </span>
Then just use simple math by plugging in the value y=3
(2*3²+6): (3²-1)=  24:8 = 3 which is the nubmer of the bought notebooks. 

<span>In total he spent $24 on notebooks that cost $8.</span>
You might be interested in
Which type of data in an Enterprise System occasionally changes?
Otrada [13]

Answer:

the correct answer is master data

Step-by-step explanation:

Enterprise system is a information system which provides a company with a wide integration and coordination regarding the important business processes  and also helps in providing seamless flow of information through out the company.

Master data  is a type of data in the enterprise system which is changed only occasionally , as this data includes all the information related to the customers like name, contact etc which helps a firm in analyzing their behavior and conduct high level research.

5 0
3 years ago
A certain number is multiplied by 4 and then 7 is added to the result then final answer is 39 find the number
Len [333]

4x + 7 = 39

    -7     -7

4x = 32

/4      /4


x = 8

The answer is 8.

7 0
3 years ago
Please help me with this math
lawyer [7]

Answer:

20

Step-by-step explanation:

2(3p+4)

Let p=2

2(3*2+4)

Multiply inside the parentheses

2(6+4)

Add inside the parentheses

2(10)

Multiply

20

7 0
3 years ago
Read 2 more answers
Plz help! It’s not hard I just don’t properly understand
jonny [76]

Answer:

a_{13}=2(13)+13=39

39 is the 13th term

Step-by-step explanation:

Okay so essentially the a_n is just a substitute for x.

See how in the equation they put n into the x spot:

y=mx+b\\a_n=mn+b\\a_n=2n+13

They changed the variable names:

y=a_n\\m=2\\n=x\\b=13

Now we know what the n actually means, plus when they ask about the terms youre trying to find it's based off of that n:

When they say, 13 term, they mean a_{13} which would be the 13th answer in the series.  So the first term would be based off of a_1

a_1=2(1)+13\\a_1=15

So whatever number is in the n position by a is what you'll be plugging into the x spot.

y=mx+b\\a_n=2n+13\\a_1=2(1)+13=15\\a_2=2(2)+13=17\\a_3=2(3)+13=19\\a_4=2(4)+13=21\\a_5=2(5) +13=23\\a_6=2(6)+13=25\\a_7=2(7)+13=27\\a_8=2(8) +13=29\\a_9=2(9)+13=31\\a_{10}=2(10)+13=33\\a_{11}=2(11)+13=35\\a_{12}=2(12)+13=37\\a_{13}=2(13)+13=39

These are all the answers leading up to the 13th term they asked for, and you can continue thus same equation with whatever number you can put into the n space.

7 0
2 years ago
Andre is waiting for the schoo! bus. He knows that 2 out of 6 cars in his town are white. He wants to determine the probability
Nezavi [6.7K]

Answer:

2 x 6 =12

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • The pyrotechnic team for Fist Bump’s tour want to know how high the arena is to 2 decimal places. The arena is 61.3786 metres hi
    14·1 answer
  • Which property is demonstrated? 8 • 6 • 4 = 4 • 6 • 8
    7·1 answer
  • Solving systems of equations using substitution p=q+2<br> 4p+3q= -27
    14·1 answer
  • One of the major reasons to use statistics is to transform data into information.
    13·1 answer
  • X^2-2x-15=0<br><br> x^2-7x=18<br><br> 4n^2=4n+36=0
    8·1 answer
  • Solve the following Absolute Value Equation. Type the 2 solutions in the
    9·1 answer
  • What is the value of h? g = -7.1 h = 3 - 10g
    5·1 answer
  • Y<br> 10<br> 3<br> 1<br> 6.<br> 1<br> 19<br> 3<br> linear or non linear
    13·1 answer
  • The box plots show the weights, in pounds, of the dogs in two different animal shelters.
    14·2 answers
  • What is the real distance from the<br> youth center to the school?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!