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
trasher [3.6K]
3 years ago
9

You can rent time on computers at the local copy center for a ​$6 setup charge and an additional ​$5.50 for every 10 minutes. Ho

w much time can be rented for ​$21​?
Mathematics
1 answer:
Roman55 [17]3 years ago
3 0

21$ is the start.

You need to take 6$ off because of the setup charge.

21-6= 15$ left

Every 10 minutes costs $5.50 so you need to divide 5.50 from 15 and multiply that answer by 10. 20 minutes can be rented. with 4$ left

You might be interested in
the diameter of a bike wheel is 25 inches. If the wheelmakes 20 Complete rotations, how far does the bike travel?
Iteru [2.4K]

Answer:

1571 in

Step-by-step explanation:

Given data

Diamter= 25 in

radius= 25/2= 12.5in

Circumference= 2πr

substitute

C=2*3.142*12.5

C=78.55in

In 1 revolution the bike will travel 78.55in

in 20 revolutions the bike will travel

=78.55*20

=1571 in

4 0
2 years ago
Solve for x. 3x/2 = 15 x = 22 1/2 x = 10 1/2 x = 10 x = 1/10
Leokris [45]

Answer:

x = 10

Step-by-step explanation:

(3x)/2 = 15 is your question.

Isolate the variable (x). Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS (Parenthesis, Exponent (& roots), Multiplication, Division, Addition, Subtraction).

First, multiply 2 to both sides

((3x)/2) = (15)(2)

3x = (15)(2)

3x = 30

Next, to isolate the variable (x), divide 3 from both sides

(3x)/3 = (30)/3

x = 30/3

x = 10

x = 10 is your answer

~

8 0
3 years ago
Read 2 more answers
What is the quotient of 75.42 and 0.1
Rufina [12.5K]

Answer:

754.2

Step-by-step explanation:

First of all, we cannot solve the question the way it is. We need to make 0.1 into a whole number. If we move the decimal to the right, once, then it will become the number one.

Of course, what we do to one, we have to do to the other. We move the decimal to 75.42 to the right one. Now it is 754.2

That looks like the answer. The reason is because we are now dividing by one. Something divided by one, will always be itself.

Now we have the answer of 754.2.

4 0
3 years ago
Read 2 more answers
Does anybody know the answer?
maw [93]

Answer:

y=140°

Step-by-step explanation:

Method 1.

The exterior angle theorem tells us that y=20+120=140

Method 2.

Solve for x first., then use that to solve for y.

The sum of the interior angles of a triangle is 180, so we can get x by doing 180-20-120=40.

y and x make a straight angle which is 180°, so we can get y by doing 180-40=140

4 0
3 years ago
Suppose C and D represent two different school populations where C > D and C and D must be greater than 0. Whitch of the foll
In-s [12.5K]

Answer:

<em>A. (C+D)^2  is the largest expression</em>

Step-by-step explanation:

<u>Squaring Properties </u>

The square of a number N is shown as N^2 and is the product of N by itself, i.e.  

N^2=N*N

If N is positive and less than one, its square is less than N, i.e.

N^2

If N is greater than one, its square is greater than N

N^2>N, \ for\ N>1

We have the following information: C and D represent two different school populations, C > D, and C and D must be positive. We can safely assume C and D are also greater or equal than 1. Let's evaluate the following expressions to find out which is the largest

A. (C+D)^2

Expanding  

(C+D)^2=C^2+2CD+D^2

Is the sum of three positive quantities. This is the largest of all as we'll prove later

B. 2(C+D)

The extreme case is when C=2 and D=1 (recall C>D). It results:

2(C+D)=2(3)=6

The first expression will be

(3)^2=9

Any other combination of C and D will result smaller than the first option

C. C^2 + D^2

By comparing this with the first option, we see there are two equal terms, but A. has one additional term 2CD that makes it greater than C.

D. C^2 - D^2

The expression can be written as

(C+D)(C-D)

Comparing with A.

(C+D)^2=(C+D)(C+D)

The subtracting factor (C-D) makes this product smaller than A which has two adding factors.

Thus A. is the largest expression

7 0
3 years ago
Other questions:
  • ​On the directed line segment from R to S on the coordinate plane ​above, what are the coordinates of the point that partitions
    7·1 answer
  • The equation of the graphed line is x + 2y = 5. What is the x-intercept
    10·1 answer
  • Simplify 90/105. show work.
    7·1 answer
  • Really quick and ill be out of your hair.....unless your bald LOL
    12·2 answers
  • A straight line passes through the origin and has a gradient of 4. Find the equation
    5·1 answer
  • Find the rate of the changes the first two hours of use after unplugging her laptop ​
    13·1 answer
  • What is the best estimate for the mass of a bicycle
    14·2 answers
  • Select the correct answer.
    7·1 answer
  • Pls help im confused D:
    8·1 answer
  • Pam has ridden her new bike 7.2 miles. Dale has ridden his new bike 12.5 times as far as Pam.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!