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
8090 [49]
3 years ago
7

Solve the problem.

Mathematics
1 answer:
zmey [24]3 years ago
6 0

Answer:

the percent of increase is 24%

Step-by-step explanation:

The percent of increase in general could be calculate as:

\frac{Vf - Vi}{Vi} *100

where Vf is final value and Vi is initial value.

From the question we know that Vi is equal to 25 and Vf is equal to 31. Replacing this values on the equation we get:

\frac{31-25}{25} *100=24%

That's mean that at second attempt the percent of increase is 24%, taking into account that at the first attempt a student get 25 questions correct.

You might be interested in
Sami cut 6 and three fourth inches off a long roll of paper if the row 36 and one third inches long how long was the original ro
cestrela7 [59]

Answer:

43 1 ÷12

Step-by-step explanation:

The computation of the length of the original roll of papers is shown below:

36 1 ÷3 and 6 3 ÷ 4 together

Now convert the above fractions into a number

36 1 ÷ 3 = 109 ÷3

And,

6 3 ÷4 = 27 ÷ 4

Now add these two numbers i.e.

109 ÷3  + 27 ÷ 4

= 436 + 81 ÷ 12

= 517 ÷12

= 43 1 ÷12

6 0
3 years ago
Plz explain how to do this!!!
cestrela7 [59]

Answer:

Step-by-step explanation:

You are trying to find the value of K, so to do that you need to get k by itself (example : K= 3-5 instead of K+5= 3)

So in 1a i would simplify 7k-3k= 4k

then 4k=11

now to get rid of the 4 and get the k alone- you DIVIDE 4k by 4 and divide 11 by 4 cause you need to do it on both sides of the equation, it should look like this.

4k= 11

-   =  -

4      4

(4k over 4 and 11 over four)

so the answer is k = 2.75  cause 11/4 = 2.75

8 0
3 years ago
Find the unknown measures. Round lengths to the nearest hundredth and angle measures to the nearest degree.
MatroZZZ [7]
The answer is AB= 4.62; mA= 22; mB=68
You could quickly find the answer by just using Pythagorean theorem to find AB.
4.3^2 +1.7^2 = AB^2
5 0
3 years ago
A farmer pumps water from an irrigation well to water his field. the time it takes to water the field varies inversely with the
Mila [183]
In order to answer this question, we use the concept of ratio and proportion wherein we use the equation,
                                 R1 / T2 = R2 / T1
where R is for rate and T is for time. Substituting the known values to the equation,
                                 (600)/x = (400)/ 20
The value of x from the equation is 30. Thus, it will take 30 hours if the rate was adjusted to 400 gallons per minute. 
8 0
3 years ago
Write the quadratic equation in standard form x squared + 3x = 8​
Volgvan

Answer:

x^{2} + 3x - 8 = 0

Step-by-step explanation:

ax² + bx + c = 0 (standard form)

3 0
3 years ago
Read 2 more answers
Other questions:
  • An element with mass 640 grams decays by 7.3% per minute. How much of the element is remaining after 8 minutes, to the nearest 1
    15·2 answers
  • 3/2,0.25,-3/4,-1.0 least to greatest. Thanks.
    13·2 answers
  • Can someone tell me this?): thank u
    10·1 answer
  • If P(x) = 0.35, find the complement
    6·1 answer
  • Int var1 = 0b0001; int var2 = 0b1111; int results1 = var1 & var2; int results2 = var1 | var2; int results3 = var1 ^ var2; in
    6·1 answer
  • Find the value of x. Given: ∠SRT≅∠STR, m∠SRT=20, m∠STU=4x​
    14·1 answer
  • in 2004 about $38 out of every $100 spent on advertising was spent on television advertising. The amount spent on radio advertis
    10·1 answer
  • Read the excerpt from Immigrant Kids, and then answer the question.
    8·2 answers
  • Solve for x. 2x - 9 I - 2 16<br>i need how yo solve <br>​
    8·1 answer
  • T
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!