Answer:
10.55% probability
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
The order in which the CDs are chosen is not important. So we use the combinations formula to solve this question.
1 Bach CD, from a set of 4.
1 Beethoven CD, from a set of 6.
1 Brahms CD, from a set of 3.
1 Handel CD, from a set of 2.
So, D=144
4 CDs from a set of 4+6+3+2 = 15.
So, T= 1365
p= D/T= 144/1365 = 0.1055
10.55% probability that she will choose one by each composer
Answer:
where is angle D (inside your brain)
Answer -9
Step-by-step explanation:
-6 divided by 2/3 = -9 2/3 multiplied by -9= -6
4(x + 3)² = 25(x - 2)²
Square root both sides:
2(x+ 3) = 5(x - 2)
Distribute 2 and 5:
2x + 6 = 5x - 10
Take away 2x from both sides:
6 = 3x - 10
Add 10 to both sides:
16 = 3x
Switch sides:
3x = 6
Divide both sides by 3:
x = 2
Answer: x = 2
Answer: 4/5
Step-by-step explanation:
Step 1: Put the percent over 100
- 80/100
Simplify it by dividing both the numerator and denominator by a common factor, aka 10
- 80/10 - 8
100/10 - 10
- 8/10
Simplify it again by dividing both the numerator and denominator by a second common factor, aka 2
= 8/2 - 4
10/2 - 5
- 4/5
Cannot be simplified any further.
