# The formula for average is average sum of all values

• No School
• NONE 0
• Notes
• 19
• 100% (8) 8 out of 8 people found this document helpful

This preview shows page 16 - 19 out of 19 pages.

The formula for average is: Average = (sum of all values given)the number of all values given(sum of all values given)the number of all values given Let "S" be the score Cindy needs to guarantee herself an average of 94. Use the formula above: 94=(90+92+98+96+94+S)6 94x6=470+S
564=470+S S=564-470=94 Term: A waiter earns \$11.00 an hour and approximately 10% of what he serves in a shift. If he works a 6 hour shift and takes \$425.00 in orders, his total earnings for the six hours would be Definition: \$106.50 \$42.50 \$108.50 \$66.00 The waiter earns by adding his wage for 6 hours and his tip.
wage earned for 6 hours = 6 x \$11.00 = \$66.00 tip earned from orders = 10% x \$425.00 = 0.10 x \$425.00 = \$42.50 total earnings of the waiter = \$66.00 + \$42.50 = \$108.50
Term: How many square feet of tile is needed for a 24 foot x 24 foot room? Definition:
Term: John is going to waterproof his carpeting which is 18 feet x 24 feet. The rate is \$.57 cents per square foot to apply the waterproofing solution. John's total cost will be: Definition: \$200.04 \$244.24 \$239.94 \$246.24 First, compute for the area of the surface: A = Length x Width A = 18 ft x 24 ft = 432 square feet Next, compute for the cost of waterproofing the area at the given rate: cost = 432 square feet x \$.57 per square foot cost = \$246.24