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
navik [9.2K]
3 years ago
10

On a math test, 30 students earned a B. This number is exactly 40% of the total number of students in the class. How many studen

ts are in the class
Mathematics
1 answer:
Tju [1.3M]3 years ago
4 0
There are 75 students in the class. 30*100/40=75
You might be interested in
Write the equation....
BaLLatris [955]
1-0/-1-0 = -1
Y- 0 = -(x-0)
Y=-x
Y - 1 = -(x+1)
Y-1= -x-1
Y = -x
5 0
3 years ago
I really need help with these questions
Alona [7]

Answer:

£10.91

Step-by-step explanation:

72p is 1kg of potatoes

1kg of carrots is 62p

10kg of potatoes is £7.20 add 3 extra kg's

which is £2.16

add £2.16 with £7.20 = £9.36

2kg of carrots is £1.24 add an extra half of kg an you get £1.55

4 0
3 years ago
HELP WILL GIVE BRAINLIST PLSSSSS I WILL GIVE YOU 79 POINTS IF YOU GET IT RIGHT JUST PLSS HELP ME
erica [24]

Answer:

Step-by-step explanation:

the bottom one on the right

6 0
3 years ago
Read 2 more answers
Hello! can someone tell me the answer for 4/5 x (- 5/7) please? ty <3
lesya692 [45]

Answer:

0.8*​x*​(‑5)/​7

Step-by-step explanation:on the qraph

3 0
3 years ago
Suppose you solved a second-order equation by rewriting it as a system and found two scalar solutions: y = e^5x and z = e^2x. Th
xenn [34]

Answer:

The solutions are linearly independent because the Wronskian is not equal to 0 for all x.

The value of the Wronskian is \bold{W=-3e^{7x}}

Step-by-step explanation:

We can calculate the Wronskian using the fundamental solutions that we are provided and their corresponding the derivatives, since the Wroskian is defined as the following determinant.

W = \left|\begin{array}{cc}y&z\\y'&z'\end{array}\right|

Thus replacing the functions of the exercise we get:

W = \left|\begin{array}{cc}e^{5x}&e^{2x}\\5e^{5x}&2e^{2x}\end{array}\right|

Working with the determinant we get

W = 2e^{7x}-5e^{7x}\\W=-3e^{7x}

Thus we have found that the Wronskian is not 0, so the solutions are linearly independent.

3 0
3 years ago
Other questions:
  • Errol's bike ride from home to school can be modeled by the equation d(t) = - 1/4 * t + 2 where d(t) is his distance from school
    11·1 answer
  • A ball is made of a plastic sphere covered with a layer of rubber. The plastic sphere has a radius of 18 in., and the ball itsel
    9·1 answer
  • Which numbers are a distance of 6 units from 2 on the number line? PLZ HELP 
    10·2 answers
  • A train travels 240 miles at a speed of 80 miles per hour. on the way back the train slows to 40 miles per hour. what is the ove
    12·1 answer
  • Please help me, i really don't understand this ​
    14·1 answer
  • Solve the system of equations.
    13·2 answers
  • Consider a sampling distribution with p equals 0.12 and samples of size n each. Using the appropriate​ formulas, find the mean a
    14·1 answer
  • Please help answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!
    11·2 answers
  • Determine the area of the composite figure below
    9·1 answer
  • A well-mixed cookie dough will produce cookies with a mean of 6 chocolate chips apiece. What is the probability of getting a coo
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!