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
Vikki [24]
3 years ago
5

9. There are 40 minutes to solve a test of 60 questions. A student completes 20 questions in 20 minutes

Mathematics
1 answer:
svp [43]3 years ago
4 0
He solved 30 questions.
He solved one question in one minute.
This if he continued at the speed and there are 40 minutes to solve the test and he leaves 10 minutes earlier. He is left with 30 minutes and one minutes per question . Therefore, he solved 30 question.
You might be interested in
F(x)=2x/3x^2-3 what is the domain of the function?
konstantin123 [22]

Answer:

Step-by-step explanation:

f(x) = \frac{2x}{3x^2 - 3} \\\\ Domain: \\ 3x^2 - 3 ≠ 0 \\ 3x^2 ≠ 3 \\ x^2 ≠ 1 \\ x ≠ \pm 1

D = {x E R/ x ≠ 1 and x ≠ - 1}

I Hope I've helped you.

5 0
3 years ago
(See Attachment)
vesna_86 [32]
The solution would be the coordinates of (3a,a).
8 0
3 years ago
Use substitution to solve the following system of equations.<br> y=3x +8<br> 5x+ 2y = 5
Shkiper50 [21]

Answer:

5x+2(3x+8)

5x+6x+16

11x+16

11x=-16

X=16/11

6 0
3 years ago
Maddie has $50 she worked for five days and now she has 270 what integer represents the average increase in value per day
OlgaM077 [116]

Answer:

44 dollars

Step-by-step explanation:

If you subtract 50 from 270 you get 220. Then you would divide 220 by 5 and get 44 dollars per day.

5 0
3 years ago
What goes in the green box and what is 6 * 28 ​
Y_Kistochka [10]
6*28= 168
You put 168 in the green box
7 0
3 years ago
Other questions:
  • The bacteria starts at 2million.The doctor prescribes an antibiotic that reduces the bacteria population to 1/4 of its size each
    14·1 answer
  • What is the area of this parallelogram? ​
    9·1 answer
  • Find the unit rate. Calvin scored 36 points in 6 games.
    14·1 answer
  • Estimate the quotient by rounding the equation to relate to a one-digit fact 5134 / 721
    7·1 answer
  • One angle of a right triangle measures 15°. What is the measure of the other acute angle?
    8·1 answer
  • Explain why it would be silly to write y is directly proportional to 3x
    11·1 answer
  • Is 1/3 bigger than 33.3%
    6·2 answers
  • Erika write the following word expression on the board: The quotient of 24 and k. Write an algebraic expression for the word exp
    5·1 answer
  • The quantity of an element is decaying over time such that the amount of material at
    8·1 answer
  • Estimates by first rounding each number to the place value 1.8×3.62
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!