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
andrew11 [14]
3 years ago
9

Krutika was thinking of a number. Krutika doubles it and gets an answer of 26.5. What was the original number?

Mathematics
2 answers:
Mrrafil [7]3 years ago
6 0

Answer:

13.25

Step-by-step explanation:

scoundrel [369]3 years ago
4 0

Answer:

2x + 8.7 = 64.9

Step-by-step explanation:

You might be interested in
Point (-5,2) is reflected over the y axis. Where is the new point located?
umka21 [38]
The new point is (5,2)
8 0
3 years ago
The weight of a rock sample is measured to be 2.5 pounds. What is the percent of error in the measurement? 2% 5% 10%
elixir [45]

Answer:

The percent of error in the measurement is 2%

Step-by-step explanation:

The percent of error associated with a reported measurement is calculate using the formula;

percenterror=\frac{error}{measurement}*100

The error associated with a measurement is defined as half of the smallest unit of measurement used. The measurement reported was 2.5. The smallest unit of measurement for this reading is 0.1. The error is thus;

error = 0.1/2 = 0.05

The percent of error is thus;

\frac{0.05}{2.5}*100=2

 

6 0
3 years ago
Please Help!!!!!
Natalija [7]
The answer to #1 is 9 to 30
the answer to #2 is 4 to 3
6 0
3 years ago
Read 2 more answers
Suppose the national mean SAT score in mathematics was 510. In a random sample of 60 graduates from Stevens High, the mean SAT s
zalisa [80]

Answer:

We accept the alternate hypothesis and conclude that mean SAT score for Stevens High graduates is not the same as the national average.

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = 510

Sample mean, \bar{x} = 502

Sample size, n = 60

Sample standard deviation, s = 30

Alpha, α = 0.05

First, we design the null and the alternate hypothesis

H_{0}: \mu = 510\\H_A: \mu \neq 510

We use Two-tailed t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n-1}} } Putting all the values, we have

t_{stat} = \displaystyle\frac{502- 510}{\frac{30}{\sqrt{60}} } = -2.0655

Now,

t_{critical} \text{ at 0.05 level of significance, 59 degree of freedom } = \pm 1.671

Since,              

|t_{stat}| < |t_{critical}|

We reject the null hypothesis and fail to accept it.

We accept the alternate hypothesis and conclude that mean SAT score for Stevens High graduates is not the same as the national average.

7 0
3 years ago
Plz plz help me on math.proplem 9
Ulleksa [173]
There are 10 shaded tiles. 30% of that is 3 There are 30 total tiles. 3/30=.10 or 10%. The fraction is 3/30. 3/30 needs to be simplified. 3/3=1 and 30/3 equals 10. 1/10 is the simplified version of the fraction and the answer
8 0
3 years ago
Read 2 more answers
Other questions:
  • This is question What value does the 6 represent in the number 976.14?
    5·2 answers
  • J scored 80% on a test. He missed 4 problems. How many problems were on the test?
    9·2 answers
  • Explain ways on how to divide 52 from 8
    5·1 answer
  • the area of maddies square garden is 450 square feet. she has purchased 92 feet of fence. is this the right amount of fence for
    13·1 answer
  • Please answer quickly!!!
    9·1 answer
  • Hunter earns $16 per hour tutoring students after school, If Hunter tutored for 12 hours
    11·2 answers
  • -1.424-(-2.9)-0.576<br>plz show work​
    10·2 answers
  • WILL GIVE BRAINLIEST
    7·1 answer
  • Mason has 6 more marbles than Kasie has. Write an algebraic expression that represents the amount of marbles that Mason has
    13·1 answer
  • You want to create a piece of pottery at an art studio. The total cost is the cost of the piece plus an hourly studio fee. The c
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!