Since each student must take at least 2 courses, if no student took all three courses, the sum of the percentages would total 200% (counting each student twice). Therefore, the proportion of students taking all three courses is the difference between the sum of all percentages and 200%:

$P(3) = 60\%+80\%+70\%-200\%\\P(3) = 10\%$

0.10 or 10% of the students take all 3 courses.

4 0

3 years ago

Store Unit Rates Project Which store did you "shop" at? Unit Rate Item Original Rate Example: Eggs (store brand) $1.80 12 30.12

ohaa [14]

Answer:

price per cookie) Lender's Plain Bagels (price per bagel) Ben and Jerry's Chunky Monkey Ice Cream (price per cup) Kraft Sliced Cheese (price per slice) Sargento Shredded Cheddar Cheese (price per cup) Pop-Tarts (price per pop-tart) Coca-Cola Cans (price per can) Red Delicious Apples 5 lb. Bag (price per pound) Chewy Granola Bar (price per bar) Juicy Juice Juice

6 0

2 years ago

Evaluate the function.<br> f(x) = -4x2 + 5x<br> Find f(6)

erastovalidia [21]

Answer:

f(6) = -114

Step-by-step explanation:

f(x) = -4x² + 5x

f(6) = -4(6)² + 5(6)

f(6) = -4(36) + 30

f(6) = -114 + 30

f(6) = -114

7 0

2 years ago

Read 2 more answers

A muffin recipe calls for 3 times as much flour as sugar. Use your expression to find the amount of flour needed when 3/4 cup of

balandron [24]

Answer:

f=3•3/4

Step-by-step explanation:

flour equals 3 sugar or 3 times 3/4

3 0

3 years ago