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
PIT_PIT [208]
3 years ago
15

greg plans to buy a book for $5.00 and some music CDs for $4.00 each. the greatest total amount o money that greg plans to spend

on buying the book and music CDs is $29.00. what is the number of music CDs, x, that Greg can buy?
Mathematics
1 answer:
-Dominant- [34]3 years ago
7 0
Greg can buy 6 music CDs.

$4.00 X $6.00 = $24

$24 + 5 = $29
You might be interested in
Find the quadratic function that fits the following data. which one function fits.
Oksana_A [137]

Answer:

C

Step-by-step explanation:

The general rule for the quadratic function is

y=ax^2+bx+c

Use the data from the table:

y(50)=130\Rightarrow 130=a\cdot 50^2+b\cdot 50+c\\ \\y(70)=130\Rightarrow 130=a\cdot 70^2+b\cdot 70+c\\ \\y(90)=200\Rightarrow 200=a\cdot 90^2+b\cdot 90+c

We get the system of three equations:

\left\{\begin{array}{l}2500a+50b+c=130\\ \\4900a+70b+c=130\\ \\8100a+90b+c=200\end{array}\right.

Subtract these equations:

\left\{\begin{array}{l}4900a+70b+c-2500a-50b-c=130-130\\ \\8100a+90b+c-2500a-50b-c=200-130\end{array}\right.\Rightarrow \left\{\begin{array}{l}2400a+20b=0\\ \\5600a+40b=70\end{array}\right.

From the first equation

b=-120a

Substitute it into the second equation:

5600a+40\cdot (-120a)=70\Rightarrow 800a=70,\\ \\ a=\dfrac{7}{80},\\ \\ b=-120\cdot \dfrac{7}{80}=-\dfrac{21}{2}=-10.5

So,

2500\cdot \dfrac{7}{80}+50\cdot (-10.5)+c=130\Rightarrow 218.75-525+c=130\\ \\c=130-218.75+525=436.25

The quadratic function is

y=\dfrac{7}{80}x^2-10.5x+436.25\\ \\y=0.0875x^2-10.5x+436.25

4 0
3 years ago
Martinez and grouse swimming pool is finally finished and all this left to do is fill it with water. Martinez family decides to
svet-max [94.6K]

Answer:

the answer ia true

Step-by-step explanation:

hope this helps

6 0
1 year ago
Alex wants to paint one side of his skateboard ramp with glow-in-the-dark paint, but he needs to know how much area he is painti
ivanzaharov [21]

Answer:

200ft squared

Step-by-step explanation:

7 0
3 years ago
Find the inverse of the function and then determine whether the inverse is a function.
nirvana33 [79]
The inverse of this function is not a function and this function isn’t inversable because it’s not one to one
5 0
3 years ago
What is the constants and coefficients for 2m+3m-m
galben [10]
Coefficients are 2 and 3
Constant is M
6 0
2 years ago
Other questions:
  • Andrew believes the honor roll students at his school have an unfair advantage in being assigned to the math class they request.
    9·1 answer
  • What is 30 divided by 50
    5·1 answer
  • Small dot placed between ones and tenths
    5·2 answers
  • Work out the area of this shape. ? cm2<br><br> 4 cm<br> 9 cm<br> 6 cm<br> 12 cm<br><br> Help!!!
    13·1 answer
  • Find the variation constant and an equation of variation where y varies directly as x and y=24 when x=3.
    11·1 answer
  • Is -9.1234567 rational
    8·2 answers
  • an eraser company needs to ship erasers in bags of 780 plus or minus 9 erasers. what is the minimum and maximum erasers that cou
    10·1 answer
  • 3(2x+3) -4x=1-4(x-5)
    5·1 answer
  • Please answer this question ASAP
    14·1 answer
  • Need help please!!!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!