Step-by-step explanation:
Let E be the event of drawing a disc from the box of discs numbered from 1 to 90
Two digit numbers from 1 to 90=10,11,12,.....,90
No. of favorable outcomes=81
Total no. of possible outcomes =90
We know that, Probability P(E) =(Total no.of possible outcomes)(No.of favorable outcomes)=9081=109
Therefore, the probability of a two digit numbered disc from the box of discs numbered from 1 to 90=109
hope it helps !
I think the answer is 51.2135. (Original is 51.21348 but I rounded it to the 6th digit)
Answer:
The solutions to the system of the equations are:
Step-by-step explanation:
Given the equations
solving the system of equation
Arrange equation variables for elimination
solving for x
Divide both sides by 15
Add 2 to both sides
Therefore, the solutions to the system of the equations are:
Answer:
a total of 56 atoms
Step-by-step explanation:
Aluminum carbonate is the compound
Yes, you multiply what is inside the parentheses times 4 and also times 3. That is:
8 atoms of Al
36 atoms of Oxygen
and
12 atoms of Carbon
giving a total of 56 atoms