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
Sedbober [7]
3 years ago
15

4m - 9= 31 I can’t remember how to work this out. Can someone help?

Mathematics
2 answers:
Schach [20]3 years ago
8 0

Answer:

4m - 9 = 31   4m= 40 because m=10 10 times 4 = 40

Step-by-step explanation:

lianna [129]3 years ago
5 0

Answer:

10

Step-by-step explanation:

4m=40

m=10

You might be interested in
A shipping container is in the shape of a right rectangular prism with a length of 13.5 feet, a width of 4 feet, and a height of
podryga [215]

Answer: 227 pounds.

Step-by-step explanation:

By definition, the volume of a rectangular prism can be calculated with the following formula:

V=lwh

Where "w" is the width of the rectangular prism, "l" is the length and "h" is the height of the rectangular prism.

In this case you know that:

l=13.5\ ft\\\\w=4\ ft\\\\h= 7.5 ft

Substituting values into the formula, you get that the volume of the shipping container is:

V=(13.5\ ft)(4\ ft)( 7.5 ft)\\\\V=405\ ft^3

You know that it was completely filled with  contents that weigh 0.56 pound per cubic foot, approximately. Then, its density is:

d=0.56\ \frac{lb}{ft^3}

Since:

d=\frac{m}{V}

Where "m" is mass and "V" is volume, you can susbstitute values and solve for "m":

0.56\ \frac{lb}{ft^3}=\frac{m}{405\ ft^3}\\\\(0.56\ \frac{lb}{ft^3})(405\ ft^3)=m\\\\m\approx227\ lb

8 0
4 years ago
Which number follows the three rules below?
gregori [183]

Answer: 3. 199.751

rounded to nearest tenth is 199.8

rounded to nearest hundredth is 199.75

rounded to nearest whole number is 200.

Hope it helps!

5 0
2 years ago
Read 2 more answers
A restaurant chain wants to change their oil from peanut oil to canola oil in order to save money. However, the restaurant wants
yulyashka [42]

Answer:

yes

Step-by-step explanation:

3 0
3 years ago
A manufacturer considers his production process to be out of control when defects exceed 3%. In a random sample of 100 items, th
pochemuha

Answer:

The p-value of the test is of 0.2776 > 0.01, which means that the we accept the null hypothesis, that is, the manager's claim that this is only a sample fluctuation and production is not really out of control.

Step-by-step explanation:

A manufacturer considers his production process to be out of control when defects exceed 3%.

At the null hypothesis, we test if the production process is in control, that is, the defective proportion is of 3% or less. So

H_0: p \leq 0.03

At the alternate hypothesis, we test if the production process is out of control, that is, the defective proportion exceeds 3%. So

H_1: p > 0.03

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

0.03 is tested at the null hypothesis

This means that \mu = 0.03, \sigma = \sqrt{0.03*0.97}

In a random sample of 100 items, the defect rate is 4%.

This means that n = 100, X = 0.04

Value of the test statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{0.04 - 0.03}{\frac{\sqrt{0.03*0.97}}{\sqrt{100}}}

z = 0.59

P-value of the test

The p-value of the test is the probability of finding a sample proportion above 0.04, which is 1 subtracted by the p-value of z = 0.59.

Looking at the z-table, z = 0.59 has a p-value of 0.7224

1 - 0.7224 = 0.2776

The p-value of the test is of 0.2776 > 0.01, which means that the we accept the null hypothesis, that is, the manager's claim that this is only a sample fluctuation and production is not really out of control.

4 0
3 years ago
What is the equation to find area of a parallelogram
olchik [2.2K]

A=BH


Area = Base x the Hight

6 0
3 years ago
Other questions:
  • Question 2
    11·1 answer
  • In a class of 100 students, 25 students have hardcover and 75 students have paperback textbooks for the course. If you randomly
    6·1 answer
  • How do you divide a negative number and a positive number?
    6·1 answer
  • If you have 1/1 yall always say 2 it is...................................1
    15·1 answer
  • 3.75x - 5 - 8.75x + 4.5 + 0.5
    7·1 answer
  • Enter the degree of the polynomial below.<br> 6x6 + 9x3 + 3x2 - 4x10 - 985 - 5x6
    8·2 answers
  • Find the missing side, x, rounded to the<br> nearest whole number.
    14·1 answer
  • What is the value of <br> 2021<br> −<br> 2223<br> +<br> 2425<br> ?<br> ?
    7·1 answer
  • Convert 3.5 into fraction​
    9·1 answer
  • Multiply and divide rational expressions and simplify the answer
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!