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
WARRIOR [948]
3 years ago
15

This is a variation word problem.

Mathematics
1 answer:
poizon [28]3 years ago
4 0
Good luck that is a hard question
You might be interested in
What is the answer to 3 + (−5)
leonid [27]

Answer:

-2

Step-by-step explanation:

Simplify the expression

3 0
3 years ago
The area of a rectangle is 243.9 m2. If the length is 15 m, what is the perimeter of the rectangle?
patriot [66]

Step-by-step explanation:

Given

Area of rectangle (A) = 243.9 m²

Length (L) = 15 m

first calculating the breadth (b)

We know

L * b = A

15 * b = 243.9

b = 243.9/ 15

b = 16.26 m

Now

Perimeter (p)

= 2 ( L + b)

= 2 ( 15 + 16.29)

= 62.58 m

Hope it will help

3 0
3 years ago
Find the gradients of lines A and B.
pishuonlain [190]

Answer:

Gradient of line A = 4

Gradient of line B = -2

Step-by-step explanation:

To solve this question, we will use the formula for gradient passing through two points (x_1,y_1) and (x_2,y_2),

Gradient (m) = \frac{y_2-y_1}{x_2-x_1}

For line A,

Since, line A passes through (3, 6) and (4, 10)

Gradient of line A = \frac{10-6}{4-3}

                              = 4

For line B,

Since, line B passes through (1, 6) and (2, 4),

Gradient of line B = \frac{6-4}{1-2}

                             = -2

4 0
2 years ago
The compressive strength of concrete is normally distributed with mu = 2500 psi and sigma = 50 psi. A random sample of n = 8 spe
ipn [44]

Answer:

The standard error of the sample mean is _17.677_ psi.

Step-by-step explanation:

<u>Explanation</u>:-

A random sample of n = 8 specimens is collected.

Given sample size is n = 8

Given mean of the population 'μ' = 2500 psi

standard deviation 'σ' = 50 psi

Let x⁻ is the mean of the observed sample

Standard error of the sample mean = \frac{S.D}{\sqrt{n} }      ...(i)

Given Population of standard error (S.D) 'σ' = 50 psi

Now substitute all values in (i)

S.E = \frac{50}{\sqrt{8} } =17.677

<u>Conclusion</u>:-

The standard error of the sample mean is _17.677psi.

7 0
3 years ago
Rachel budget $76.50 for school clothes. This is 0.45 of her total budget. How much does Rachel have in her total budget?
enot [183]
If Rachel's total budget was n, then:
.45n=$76.5 divide both sides by .45
n=$76.5/.45
n=$170.00 Rachel's total budget.
Oct 23, 2015 12:21 AM

6 0
2 years ago
Read 2 more answers
Other questions:
  • What is the current value of a zero-coupon bond that pays a face value of $1,000 at maturity in 6 years if the appropriate disco
    12·1 answer
  • What is the volume of a cone with a diameter of 30 feet and a height of 60 feet use 3.14 for pie
    11·1 answer
  • Four of the same textbooks contain a total of 848 pages. Which represents the total number of pages, y, of any number of the sam
    10·2 answers
  • <img src="https://tex.z-dn.net/?f=6%20-%205x%20%2B%206%20%3D%204" id="TexFormula1" title="6 - 5x + 6 = 4" alt="6 - 5x + 6 = 4" a
    8·2 answers
  • Can someone help with this please and thank you
    13·2 answers
  • An actor gained 20 pounds for a part and then loses 15 pounds during the filming of the movie to go along with the story describ
    7·1 answer
  • GIVING 20 POINTS!!
    5·1 answer
  • Frank deposits his savings at the bank. After 3 years, it has earned $102 in interest, at a simple
    6·1 answer
  • Complete the table for the given rule. Rule: y=x-1/4
    15·1 answer
  • HAPPY B DAY TOO meeeeeee
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!