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
neonofarm [45]
3 years ago
6

X - 0.25x = 0.75x

Mathematics
1 answer:
MrRissso [65]3 years ago
3 0
I have no idea myself
You might be interested in
0.5b+4=2(b+2)<br> I need help on this question?
mafiozo [28]

Answer: b=0

Step-by-step explanation:

0.5b+4=2(b+2)

0.5b+4=2b+4

4=1.5b+4

0=1.5b

b=0

8 0
3 years ago
Read 2 more answers
26. Students who take a statistics course are given a pre-test on the concepts and skills for the first chapter of a statistics
hjlf

The test statistic value lies to the right of the critical value. So we have sufficient evidence to reject the null hypothesis.

<h3>What are null hypotheses and alternative hypotheses?</h3>

In null hypotheses, there is no relationship between the two phenomenons under the assumption or it is not associated with the group. And in alternative hypotheses, there is a relationship between the two chosen unknowns.

Students who take a statistics course are given a pre-test on the concepts and skills for the first chapter of a statistics course.

Then they are given a post-test once the professor has concluded lecturing on the material.

Pre-test and post-test scores for 4 students in an elementary statistics class are given below.

Then we have

\mu _d = \mu _{post} - \mu _{pre}

Then the null hypotheses and alternative hypotheses will be

H₀: \mu _d = 0

Hₐ: \mu _d > 0

Then the test statistic will be

\rm \overline{x} _d = \dfrac{\Sigma x_d}{n} = \dfrac{15+12+10+1}{4}\\\\\overline{x} _d = 9.5

Then

\rm S_d = 6.02

The test statistic value is given by

\rm t = \dfrac{\overline{x} _d }{\dfrac{S_d}{\sqrtn}} \\\\t = \dfrac{9.5}{\dfrac{6.02}{\sqrt4}}\\\\t = 3.16

Since this is a right-tailed test, so the critical value is given by

\rm t_{n-1}(\alpha ) = t_3 (0.05) = 2.353

Since the test statistic value lies to the right of the critical value. So we have sufficient evidence to reject the null hypothesis.

Hence, we can conclude that \mu _d > 0 that is test scores have improved.

More about the null hypotheses and alternative hypotheses link is given below.

brainly.com/question/9504281

#SPJ1

7 0
2 years ago
Please answer this question now in two minutes
Igoryamba

Answer: x=6, y=20

Step-by-step explanation:

Since ΔBCD and ΔTUS are congruent triangles, we can set the sides equal to each other.

y=2y-20                           [subtract both sides by 2y]

-y=-20                              [divide both sides by -1]

y=20

--------------------------------------------------------------------------------------

3x+32=9x-4                    [add both sides by 4, and subtract both sides by 3x]

36=6x                              [divide both sides by 6]

x=6

7 0
3 years ago
Due in 5 mins!! FIND THE MISSING LENGTHS!!!!!
meriva
Since the shape is a square the sides are equal. Then we need to find x such that x * x = 169.
Sqrt(169) = 13
So x = 13
8 0
3 years ago
Tiffany buys a basket of watermelons on sale for \$9$9 before tax. The sales tax is 9\%9%. What is the total price Tiffany pays
meriva

Answer:  $9.81

Step-by-step explanation:

Here, Tiffany buys a basket of watermelons on sale for $9 before tax.

Therefore, Initial cost of a basket of watermelons =  $9

And, he sales tax is 9%.

Therefore tax on a basket of watermelons,

9% of 9 = \frac{9\times 9}{100} = 0.81

But, The total cost of a basket of watermelons = initial cost + tax

= 9+0.81=9.81

Therefore, Tiffany pays $9.81  for the basket of watermelons.



8 0
3 years ago
Read 2 more answers
Other questions:
  • Leilani practiced piano for 3/5 of an hour. Sarah practiced piano for 7/8 of an hour.
    12·1 answer
  • Three minus seventeen= A. Negative B. Positive
    15·2 answers
  • The base of the figure shown is a cube with sides that are 12 inches long. The total height of the figure is 20 inches. The slan
    9·2 answers
  • &gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;
    14·1 answer
  • Describe how to transform (^6 sqrt x^5)^7 into an expression with a rational exponent.
    14·1 answer
  • Solve the equation.<br> Z<br> -7=<br> 3<br> 12<br> 7<br> Oz=<br> 3<br> Oz=2<br> Oz=-21<br> Oz=21
    11·1 answer
  • What is the solution to the equation 4x-6= 10x-3?
    12·2 answers
  • Yossi used to have a square garage with 286 ft of floor space. He recently built an addition to it. The garage is still a​ squar
    14·2 answers
  • PLEASE HELP ILL GIVE U 50 points plz answer fast
    8·1 answer
  • Find the missing side.<br><br> Can someone help???
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!