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erma4kov [3.2K]
3 years ago
8

HOw do I find proportions?

Mathematics
1 answer:
Rudiy273 years ago
3 0

Answer: A proportion is simply a statement that two ratios are equal.

Example: 2:6 = 1:3

To get that you do this: 2:6 ÷ 2:2 = 1:3

-----------------------------------------------------------

Example 2: 5:10 = 1:2

To get that you do this: 5:10 ÷ 2:2 = 1:2

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Michael wants to take French or Spanish, or both. But classes are closed, and he must apply and get accepted to be allowed to en
Brums [2.3K]

Answer:

80%.

Step-by-step explanation:

Given the following probabilities:

  • P(Micheal Being admitted to French), P(F)=50%
  • P(Micheal Being admitted to Spanish), P(S)=50%

In Probability Theory, when we have BOTH , we mean the intersection of the probabilities. Therefore:

  • P(Micheal Being admitted to BOTH French and Spanish), P(F \cap S)=20\%

We want to determine the probability that he will be enrolled in either French or Spanish (or possibly both).

Probability of either A OR B =P(F \cup S)

From Probability Theory:

P(F \cup S) = P(F)+P(S)-P(F \cap S)\\P(F \cup S) =50+50-20\\P(F \cup S) =80

The probability that he will be enrolled in either French or Spanish (or possibly both) is 80%.

3 0
3 years ago
If the ratio of star shaped cookies to circular cookies is 5: 6 and the ratio of circular cookies to triangular cookies is 3: 10
SCORPION-xisa [38]

Answer:

1:4

Step-by-step explanation:

Without loss of generality, let there be 5 star shaped cookies. Following the proportions given, there will be 6 circular cookies. We can set up the following proportion to find out how many triangular cookies there would be:

\frac{3}{10}=\frac{6}{x},\\3x=60,\\x=20.

Therefore, for every 5 star shaped cookies there will be 20 triangular cookies.

Simplifying this ratio we have 5:20 \implies \boxed{1:4}.

6 0
3 years ago
Need help what does m
Nadya [2.5K]
What does m? I believe that stands for measurement I might be wrong
7 0
3 years ago
Which is greater 0.21 or 0.12 and why?
tatuchka [14]
0.21 is greater than 0.12 because it in the 20s
6 0
3 years ago
X=7 <br><br> X=4<br><br> Please someone help ?
Katarina [22]

Step-by-step explanation:

×=4 is the answer thank you

6 0
3 years ago
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