A bookstore sells 3 books for $42. Which table represents the relationship between number of books and the total price?
1 answer:
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Answer:
See explanation and attachment
Step-by-step explanation:
SOH CAH TOA is a mnemonic.
SOH means
CAH means
TOA means
Given an angle and a side of a right angle triangle, you can use the appropriate ratio to find the missing side.
For instance, find x in the diagram in the attachment.
In this case the best ratio to use is TOA.
All the other ratio also follow the same pattern
NB: Your calculator in degree should give
Answer:
Step-by-step explanation:
Probability tells us how likely something is to occur. It is found by dividing the favorable outcomes by the total outcomes.
In this question, a favorable outcome is selecting a green dye. The total outcomes are all the dyes.
- Favorable outcomes (green dye): 14
- Total outcomes (all dyes): 20 blue+ 6 red+14 green=40
Reduce the fraction. Both the numerator and denominator can be divided by 2.
This is the probabilty as a fraction. It can also be written as a percent. Divide the fraction, then multiply by 100.
The probablity of selecting a green dye is <u>7/20 or 35%</u>