John sells book bags.he sells a leather bag for $69.80,and the sales tax is 6%
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Answer:
Step-by-step explanation:
→ First understand what Pythagoras theorem is
Pythagoras is a theorem used to find the hypotenuse (the side opposite to the right-angle) of a triangle. We would need the base lengths as well the height in order to use Pythagoras.
→ State the formula and identify the letters
a² + b² = c² ⇒ where 'a' is 380cm, 'b' is 290cm and 'c' is what we are trying to work out
→ Substitute in the values into the formula
380² + 290² = c²
⇒ Simplify
144400 + 84100 = c²
⇒ Collect the numbers together
228500 = c²
⇒ Square root both sides to find 'c'
478.0167361 = c
→ The length of the diagonal is 478.02
Divide the silver present in the bar by the total weight of the bar to find the percentage of silver in the bar.
Multiply this decimal by 100 for the percentage.
Rounded to the nearest tenth, 71.4% of the weight of the bar is silver.
Multiply this decimal by 100 for the percentage.
Rounded to the nearest tenth, 71.4% of the weight of the bar is silver.