Step-by-step explanation:
A mixed number consists of an integer and a proper fraction:
where the numerator is less than the denominator (b < c).
A terminating decimal is a decimal that ends. For example, 1/2 = 0.5.
A repeating decimal is a decimal that repeats forever. For example, 1/3 = 0.33333...
You must use 2, 3, and 4 exactly once. Try different combinations and see which ones result in a terminating decimal, and which one results in a repeating decimal.
Answer:
see below
m = males = 50
e = females = 25
a = adults = 7
Step-by-step explanation:
Givens
Let the adults = a
let the males students = m
lef the female students = e
Equations
a + m + e = 82
m = 7*a + 1
e = 1/2 * (7a + 1)
Solution
a + 7a + 1 + 1/2(7a + 1) = 82 Remove the brackets on the left.
a + 7a + 1 + 3.5*a + 1/2 = 82 Combine the like terms on the left.
11.5a + 1.5 = 82 Subtract 1.5 from both sides.
11.5a + 1.5 - 1.5 = 82 - 1.5 Combine
11.5a = 80.5 Divide by 11.5
a = 80.5/11.5
a = 7
The number of adults = 7
===============================
m = 7a + 1
m = 7*7 + 1
m = 50
===============================
e = 1/2 m
e = 1/2 * 50
e = 25
Answer:
Number of Questions =3
Probability of giving a correct answer
Probability of giving two correct answers
Probability of giving all correct answers
Probability that at least one of them is correct
Probability that two of them is correct
Probability that all of them is correct
So, Required probability
1. 9 5/185 or 9 1/37
2. 25 6/406 or 25 3/203
Answer:
c = 5
Step-by-step explanation:
Order of Operations: BPEMDAS
Step 1: Define
Step 2: Solve for <em>c</em>
- <u>Cross multiply:</u>
- <u>Distribute:</u>
- <u>Subtract 4c on both sides:</u>
- <u>Add 7 to both sides:</u>
- <u>Divide both sides by 3:</u>
Step 3: Check
<em>Plug in c to verify it's a solution.</em>
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