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
Archy [21]
3 years ago
8

Can someone help please?

Mathematics
2 answers:
Afina-wow [57]3 years ago
7 0
What the person above me said
s344n2d4d5 [400]3 years ago
4 0

Answer: 19

Step-by-step explanation:

You might be interested in
Russells previous test scores are 70,74,87,85 what score does he need to get an average of 80
s344n2d4d5 [400]
70+74+87+85 = 316
For the 5th test score, an 80 average needs 400 as the total score.  So 400-316 = 84 on the next test.
8 0
3 years ago
Read 2 more answers
The cost price of a box and a pen is Rs 80 The box is sold at 10% profit and the pen is sold at 20% loss. If the selling price o
uysha [10]

Answer:

61.84%

Step-by-step explanation:

Let the cost of the box be x. Since the price of the box and the pen is Rs 80, the pen's price can be represented as 80 - x. The box is sold at a ten percent profit, and an added ten percent is equal to 1.1. Therefore, the price the box sells at is 1.1(x). A 20% loss is the same a keeping 80% or multiplying by 0.8. This means the pen sold at 0.8(80 - x). Now, we are given the box went for Rs 28 more than the pen, so we can create an equation:

1.1x = 0.8(80 - x) + 28

We can simplify and solve:

1.1x = 64 - 0.8x + 28

1.9x = 92

x = 92/1.9

x = 920/19

The cost of the box after the increase would be 1.1(920/19) and the pen would be 0.8(80 - 920/19).

The sum of these two can be written as a percent x of 80.

80x = 0.8(80 - 920/19) + 1.1(920/19)

80x = 64 - 0.8(920/19) + 1.1(920/9)

80x = 64 - 0.3(920/19)

80x = 64 - 276/19

80x = 940/19

x = 940/1520

x = 0.6184

This is 61.84%

4 0
3 years ago
If a hypothesis is not rejected at the 0.10 level of significance, it: a. may be rejected at the 0.05 level. b. must be rejected
mariarad [96]

Answer:

Option D - Will not be rejected at the 0.05 level.

Step-by-step explanation:

The significance level, which is denoted as "α", is a measure of the strength of the evidence that must be present in a sample before we can reject the null hypothesis and conclude that the effect is statistically significant. Now, this significance level must be determined before conducting an experiment.

Now, in the context of this question, the significance level is the probability of rejecting the null hypothesis when it is true. For example, a significance level of 0.05 means a 5% risk of concluding that a difference exists when there is no actual difference. Now, lower significance levels will indicate that we require stronger evidence before we can reject the null hypothesis.

Thus, if we don't reject at α = 0.1,we obviously will not reject at higher values.

Thus, looking at the options, we will not reject at 0.05 significance level.

4 0
3 years ago
What is...<br> 2 = -1/5c
amid [387]
C=65

If its wrong I’m really sorry:(
5 0
3 years ago
Cuál es primer número natural o entero positivo que conoces​
____ [38]

Answer:

Los números naturales incluyen solo enteros positivos y comienzan desde 1 hasta infinito

5 0
3 years ago
Other questions:
  • Please help! I really need help!
    8·1 answer
  • True or False: The cube root of a negative number will ALWAYS be negative?
    15·2 answers
  • Connie made 1 1/3 pounds of trail mix for a hike. is there a way Connie can break up the trail mix into four bags
    11·1 answer
  • The mean of 7 numbers is 15. When an 8th number is added the mean decreases to 12. What is the 8th number?
    5·1 answer
  • Without using a calculator, fill in the blanks with two consecutive integers to complete the following inequality.
    13·1 answer
  • Please help! Thank you​
    5·1 answer
  • 20 pts THIS IS LIMITED AND YOU WILL GET A BIG THANKS AND YOU WILL GET THE BRAINLIEST!!!
    5·2 answers
  • What is the value of x?<br> х<br> 6v2<br> 45°
    8·2 answers
  • PLEASE HELP WILL MARK BRAINLIEST PLZ PLZ PLZ!!
    7·2 answers
  • (d) 200 gm
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!