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
Kazeer [188]
3 years ago
6

Which expression correctly represents eight times the difference of 4 and a number

Mathematics
1 answer:
expeople1 [14]3 years ago
6 0

Answer:

The expression for two times the difference of 4 and a number  is

8(4-d)

Step-by-step explanation:

To Find:

Write an expression for Eight times the difference of 4 and a number.

Solution:

Let the Unknown number be 'd'

Difference of 4 and d                        =      ( 4 - d )

So One Time Difference of 4 and d =  1× ( 4 - d )

∴   Two Times Difference of 4 and d = 2× ( 4 - d )

∴   Eight Times Difference of 4 and d = 8× ( 4 - d )

The expression for Eight times the difference of 4 and d. will be

8(4-d)

The expression for Eight times the difference of 4 and a number  is

8(4-d)

You might be interested in
Help i need help help
Margarita [4]

A is the right answer.

8 0
3 years ago
Read 2 more answers
Rose is making chocolate chip cookies for dessert the recipe for one batch of chocolate chip cookies calls for 2 1/2 cups of sug
lilavasa [31]

Answer:

8.75 cups

Step-by-step explanation:

3.5:1 (the ratio of batches to 1 batch)

x:2.5 (the ratio of cups of sugar used to the amount used for only 1 batch)


3.5/1=x/2.5 (proportion)


x= 8.75

3 0
3 years ago
The graphs of linear function f and g are shown on the grid. Which function is best represented by the graph of g
Serjik [45]
G- y = 1/3x F- y = x
7 0
2 years ago
Kayla wanted to buy a coat that cost £120. She saw the coat on sale in one shop at 1/5 off. She saw the same coat on sale in ano
den301095 [7]
At one shop the coat was £24 with the 1/5 off and £30 in the other shop where it was 25% off so therefore the first coat she saw is the cheapest I think

Note: sorry if I’m wrong
8 0
3 years ago
Rewa Delta Union Rugby CEO has become concerned about the slow pace of the rugby games played in the current union rugby, fearin
ozzi

Answer:

We conclude that the mean duration of 15-sided union rugby games has decreased after the meeting.

Step-by-step explanation:

We are given that Before the meeting, the mean duration of the 15-sided rugby game time was 3 hours, 5 minutes, that is, 185 minutes.

A random sample of 36 of the 15-sided rugby games after the meeting showed a mean of 179 minutes with a standard deviation of 12 minutes.

Let \mu = <em><u>mean duration of 15-sided union rugby games after the meeting.</u></em>

So, Null Hypothesis, H_0 : \mu \geq 185 minutes      {means that the mean duration of 15-sided union rugby games has increased or remained same after the meeting}

Alternate Hypothesis, H_A : \mu < 185 minutes     {means that the mean duration of 15-sided union rugby games has decreased after the meeting}

The test statistics that would be used here <u>One-sample t test statistics</u> as we don't know about the population standard deviation;

                            T.S. =  \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample mean duration of 15-sided union rugby games = 179 min

            s = sample standard deviation = 12 minutes

            n = sample of 15-sided rugby games = 36

So, <u><em>the test statistics</em></u>  =  \frac{179-185}{\frac{12}{\sqrt{36} } }  ~ t_3_5

                                       =  -3

The value of t test statistics is -3.

<u>Now, at 1% significance level the t table gives critical value of -2.437 at 35 degree of freedom for left-tailed test.</u>

Since our test statistic is less than the critical value of t as -3 < -2.437, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which <u>we reject our null hypothesis</u>.

Therefore, we conclude that the mean duration of 15-sided union rugby games has decreased after the meeting.

6 0
3 years ago
Other questions:
  • Luna observed that in the last 12 issues of "Rise Over Run Weekly," 384 of the 960 pages contained an advertisement.
    15·2 answers
  • Find the difference. k k2 − 9k + 20 − 5 k2 − 9k + 20
    8·1 answer
  • Tickets to the annual awards banquet for a club cost $58 each. Ticket sales for the banquet totaled $2436. Estimate the number o
    10·1 answer
  • A presidential candidate's aide estimates that, among all college students, the proportion who intend to vote in the upcoming el
    6·1 answer
  • Maria wants to cover the Box shown below with paper which of the following could be the dimensions of the paper so that Maria ha
    13·1 answer
  • What is the area of a rectangle with vertices
    7·1 answer
  • How many songs can you play on sound cloud before a ad comes on
    12·1 answer
  • 15. There are 240 stamps in Jerry
    13·1 answer
  • X<br> у<br> 5<br> -2<br> 7.<br> 4<br> 9<br> 10<br> 11<br> 16
    11·1 answer
  • 1. Tell whether the ordered pair (5,0) is the solution of the system. x + y = 5
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!