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
Setler79 [48]
2 years ago
5

Scott has a container of ping pong balls and golf balls. The number of ping pong balls in the container is 8 times as many as th

e number of golf balls in the container. If there are 10 golf balls in the container, how many ping pong balls are in the container?
a.88
b.80
c.2
d.18​
Mathematics
1 answer:
Galina-37 [17]2 years ago
3 0

Answer:

b)

Step-by-step explanation:

Number of ping pong balls = 8 * number of golf balls

= 8*10

= 80

You might be interested in
What’s the difference between nine and twice a number,x, is one
coldgirl [10]
9/2x=1 is probably right
6 0
3 years ago
Need help fast!!!! Is it Q N
saw5 [17]
Coin 1 is Q, the very top coin is N and the one below that is Q. For the bottom coin 2 that's N and the very bottom is also N and the one on top of the very bottom is Q. I hope that helped!
<span />
8 0
3 years ago
Read 2 more answers
A piece of paper is to display ~128~ 128 space, 128, space square inches of text. If there are to be one-inch margins on both si
Grace [21]

Answer:

The dimensions of the smallest piece that can be used are: 10 by 20 and the area is 200 square inches

Step-by-step explanation:

We have that:

Area = 128

Let the dimension of the paper be x and y;

Such that:

Length = x

Width = y

So:

Area = x * y

Substitute 128 for Area

128 = x * y

Make x the subject

x = \frac{128}{y}

When 1 inch margin is at top and bottom

The length becomes:

Length = x + 1 + 1

Length = x + 2

When 2 inch margin is at both sides

The width becomes:

Width = y + 2 + 2

Width = y + 4

The New Area (A) is then calculated as:

A = (x + 2) * (y + 4)

Substitute \frac{128}{y} for x

A = (\frac{128}{y} + 2) * (y + 4)

Open Brackets

A = 128 + \frac{512}{y} + 2y + 8

Collect Like Terms

A = \frac{512}{y} + 2y + 8+128

A = \frac{512}{y} + 2y + 136

A= 512y^{-1} + 2y + 136

To calculate the smallest possible value of y, we have to apply calculus.

Different A with respect to y

A' = -512y^{-2} + 2

Set

A' = 0

This gives:

0 = -512y^{-2} + 2

Collect Like Terms

512y^{-2} = 2

Multiply through by y^2

y^2 * 512y^{-2} = 2 * y^2

512 = 2y^2

Divide through by 2

256=y^2

Take square roots of both sides

\sqrt{256=y^2

16=y

y = 16

Recall that:

x = \frac{128}{y}

x = \frac{128}{16}

x = 8

Recall that the new dimensions are:

Length = x + 2

Width = y + 4

So:

Length = 8 + 2

Length = 10

Width = 16 + 4

Width = 20

To double-check;

Differentiate A'

A' = -512y^{-2} + 2

A" = -2 * -512y^{-3}

A" = 1024y^{-3}

A" = \frac{1024}{y^3}

The above value is:

A" = \frac{1024}{y^3} > 0

This means that the calculated values are at minimum.

<em>Hence, the dimensions of the smallest piece that can be used are: 10 by 20 and the area is 200 square inches</em>

3 0
2 years ago
Simplify the following expression.<br> 2x + 3x3 - 5x2 + x2 +7x + 1+ 7x -3x3 - 4
denis-greek [22]

-4x^2+16x-3 is your answer

8 0
2 years ago
Read 2 more answers
Is the function increasing or decreasing over the interval [-3, -1)? Explain.
olga nikolaevna [1]

Answer:I actually don’t know

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Jessica is selling books during the summer to earn money for college. She earns a commission on each sale but has to pay for her
    14·2 answers
  • How do I divide up this large shape?
    10·1 answer
  • If f(x) = 5x, what is f–1(x)?
    6·1 answer
  • How many unit cubes are in the bottom layer of this prism?
    6·2 answers
  • Brian bought x apples and some oranges. Brian bought 3 more oranges than apples.
    7·1 answer
  • Which shows the number subsets to which the number<br> - v144 belongs?
    6·1 answer
  • I’ve done the first two I just need the last two.
    12·1 answer
  • Can you guys help me plz
    7·1 answer
  • Find the value of x in the given
    10·1 answer
  • How does the graph of the function g(x) = 5x + 1 differ from the graph of f(x) = 5*?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!