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
Andrei [34K]
2 years ago
9

20m length of rope costs $12.40. Calucualte the cost of 12m of rope.

Mathematics
1 answer:
atroni [7]2 years ago
6 0

Answer:

$ 7.44

Step-by-step explanation:

20m rope costs $12.40

So, 12m costs = 12.40 x 3/5

= $ 7.44

You might be interested in
Amy ran 3/4 a mile. Write the distance Amy ran as a decimal.
dem82 [27]
0.75 of a mile Amy ran
6 0
3 years ago
Read 2 more answers
What did the teenage yardstick say to its parents
NeX [460]

Answer:

I want to stand on my own three feet

Step-by-step explanation:

7 0
3 years ago
PLEASE HELP SOMEONE!!!
evablogger [386]

Answer:

y = -2x

Step-by-step explanation:

For direct variation:  y = kx, where k is the constant of proportionality.

Given that Y equals -12 when x equals 6, we have -12 = k(6).  Solve this for k by dividing both sides by 6:

k = -12/6 => k = -2

Then the "direct variation equation" here is y = -2x.

3 0
3 years ago
Suppose Burger King has run a major advertising campaign in the hopes of increasing monthly sales. To investigate the effectiven
Alexxandr [17]

Answer:

The right answer is:

a.H0: μd = 0; H1: μd > 0

Step-by-step explanation:

The claim that want to be tested is that the sales were significantly increased after the commercial, indicanting that the advertisement campaign was effective.

This claim is usually expressed in the alternative hypothesis as it has to have enough evidence to prove that it is true.

Then, the alternative hypothesis H1 should state that the difference (sales after - sales before) is higher than 0.

The null hypothesis would state that the difference is not significantly different from 0, or, in other words, that the sales are the same before and after and that the variation is due to pure chance.

Then, the null hypothesis H0 would state that the difference is equal to 0.

The right answer is:

a.H0: μd = 0; H1: μd > 0

4 0
3 years ago
Given that an intercepted arc has length 6pi inches and a central angle is pi/3, find the radius
MA_775_DIABLO [31]
\bf \textit{arc's length}\\\\
s=r\theta \quad 
\begin{cases}
r=radius\\
\theta =angle~in\\
\qquad radians\\
------\\
s=6\pi \\
\theta =\frac{\pi }{3}
\end{cases}\implies 6\pi =r\left( \frac{\pi }{3} \right)\implies \cfrac{6\pi }{\frac{\pi }{3}}=r
\\\\\\
\cfrac{6\pi }{1}\cdot \cfrac{3}{\pi }=r\implies 18=r
5 0
3 years ago
Other questions:
  • How to find the slope of a line when given two points?
    15·1 answer
  • A manufacturer claims that fewer than 6% of its fax machines are defective. to test this claim, he selects a random sample of 97
    10·1 answer
  • Will the ball clear the crossbar of the goal post, which is 10 feer off the fround.
    10·1 answer
  • Which linear function has the steepest slope? On a coordinate plane, a line goes through points (0, 1) and (1, negative 2). A 2-
    10·2 answers
  • What are the two values of 16 squared
    9·1 answer
  • Please show how to solve!<br> 3(x+2)^3/5 +3=27
    13·1 answer
  • 68 - 4 × (6 - 4)4<br><br> pls help o-o
    6·2 answers
  • Hue is arranging chairs. She can form 2 rows of a given length with 2 chairs left over, or 6 rows of that same length if she get
    15·1 answer
  • Including a 6% sales tax, an inn charges $155.82 per night. Find the inn's nightly cost before tax is added.
    14·1 answer
  • Consider the triangle below. Determine the angle measure for the bottom two angles in order for the triangle to be classified as
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!