All categories

3 years ago

12 is 40% of what number?

Mathematics

2 answers:

bezimeni [28]3 years ago

7 0

Answer:

the correct answer is 30

Step-by-step explanation:

divide 12 by .4 to get the correct asnwer

balandron [24]3 years ago

3 0

Answer:

Step-by-step explanation:

You might be interested in

PLEASE HELP ASAP!!!!!

Gelneren [198K]

Answer:

The correct answer is 5

3 0

3 years ago

Read 2 more answers

I NEED HELP ASAP!!! PLEASE HELP ME!!!

mars1129 [50]

Answer:

X = 75

Step-by-step explanation:

Angle F and angle X are corresponding angles so they are congruent (equal)

Angle F and 105 form a straight line so they are supplementary angles, which means they add to 180

F+ 105 = 180

F = 180-105

F = 75

F = X = 75

5 0

3 years ago

When a water-cooled nuclear power plant is in operation, oxygen in the water is transmuted to nitrogen-17. After the reactor is

wolverine [178]

Answer:

The differential equation is $\frac{dR}{dt} = -kR$

Step-by-step explanation:

Differential equation for the rate of change in radiation level:

Radiation level is R.

Rate of change indicates that the radiation level R varies in function of time t, which mathematically means that we have:

$\frac{dR}{dt}$

After the reactor is shut down, the radiation from the nitrogen-17 decreases in such a way that the rate of change in the radiation level is directly proportional to the radiation level.

Rate of change is k. Decreases means that k is negative. Proportional to the radiation level of R means that -k multiplies R. So the differential equation is:

$\frac{dR}{dt} = -kR$

7 0

3 years ago

How much should be added to 58.4 to makes 400?

Ket [755]

Answer:

341.6

Step-by-step explanation:

400-58.4=341.6

6 0

3 years ago

Special right triangles

telo118 [61]

Answer: please find the attached files

Step-by-step explanation:

A unit circle formula and special triangle of 45, 30 and 60 degrees can be used to solve the problem.

Please find the attached files for the solution

6 0

3 years ago