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
Karo-lina-s [1.5K]
3 years ago
5

last year my math book cost $126,and i was told the price would increase 9% each year. If the cost continues to increase at this

rate,what will my math book cost two years from now when i graduate? show your work.
Mathematics
2 answers:
siniylev [52]3 years ago
7 0
It's a geometric sequence.
an=a1*r^(n-1)
a1=126
r=109%

an=126*(109%)^(n-1)

substitute n with 3 ( because in year 0 n will be 1, in year 1 n will be 2, and so on)

a3=126*(109%)^(3-1)
a3=149.7$
mrs_skeptik [129]3 years ago
3 0
2,268 because u have to add the 2 years with 126
You might be interested in
A square number and a multiple of 3 have a total of 90 what r the 2 numbers
Alecsey [184]

Hello,

Let's x² the square number

and 3*y the multiple of 3.

x^2+3y=90\\\\\boxed{y=-\dfrac{1}{3} x^2+30}\\\\

2 solutions : for (x,y) as integers : (-6,18) and (6,18)

but one solution for (x²,3y) as integers :<u> (36,54) </u>

7 0
3 years ago
The table represents an exponential function.
Stels [109]

The exponential function is given in the form

y= a (b)^{x}

where a is the initial value and b is the multiplicative rate of change

So lets plug the first two values of the table in this function , we get

2= a(b)^1

or

2= ab............................(eqn 1)

Now plug second

2/5 = a(b)^2 .............................( eqn2)

Divide equation 2 by equation 1

\frac{2=ab}{\frac{2}{5}=ab^2}

On simplifying we get

5= \frac{1}{b}

or

b=\frac{1}{5}

So the multiplicative rate of change of the function is

a) \frac{1}{5}

8 0
3 years ago
Read 2 more answers
How many different ways can you write a fraction that has a numerator of 2 as a sum of fractions
Rzqust [24]
At least you can write it as the sum of half of it twice, that is:
2/x = 1/x + 1/x
whatever x number you have, for example:
2/5 = 1/5 + 1/5

But then, you can express a fraction in many different ways, for example again:
2/5 = <span>1/5 + 1/5 = 2/10 + 2/10
</span>= 1/10 + 1/10 + 1/10 + 1/10
so there are an infinite ways of expressing such a fraction.
7 0
3 years ago
I need help on question 2 please
Romashka-Z-Leto [24]

Answer is 148,847,750

3 0
3 years ago
Read 2 more answers
Im confused on #6...help anyone?
nikdorinn [45]

Answer:

Step-by-step explanation:

Using elimination means you either add the two equations together or subtract them. You can first multiply the second equation by 2, so you get 4x - 6y = 24. Then you add the two equations together to get 9x = 42. Then you solve for x and then you can solve for y.

6 0
3 years ago
Other questions:
  • Solve each compound inequality<br> -3 &lt; x -1 &lt; 4
    13·2 answers
  • Electronics Unlimited sells TVs. There are 110110110 TVs on display in the showroom, and each TV is turned on to a random channe
    14·2 answers
  • The length of a rectangle is 4 ya more than twice the width x. The area is 510 yd^2. Find the dimensions of the given shape
    9·1 answer
  • Carter wants to buy a new movie for $25 he already has $11 dollars saved and his mom will give him $2 for each chore he does wha
    8·2 answers
  • Who ever makes it good I'll pay$ through PayPal I just need help by the end of today
    14·1 answer
  • Does anyone know how to do this?
    14·1 answer
  • A new cookbook is becoming popular. The local bookstore ordered 4 copies in October, 6
    5·1 answer
  • A farmer has 100 acres of available land that he wishes to plant with a mixture of potatoes, corn, and cabbage. It costs him $40
    9·1 answer
  • Please help me please thank you sm in advance
    14·2 answers
  • 10) If two angles in a triangle measure 53 degrees and 45 degrees, what is the value of the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!