A shade of green paint is made by mixing blue paint and yellow paint in the ratio of 4 to 3. How many pints of blue paint and ye
llow paint are needed to make 21 pints of the green paint?
A.
12 pints of blue paint and 3 pints of yellow paint
B.
9 pints of blue paint and 12 pints of yellow paint
C.
16 pints of blue paint and 9 pints of yellow paint
D.
12 pints of blue paint and 9 pints of yellow paint
A.
12 pints of blue paint and 3 pints of yellow paint
B.
9 pints of blue paint and 12 pints of yellow paint
C.
16 pints of blue paint and 9 pints of yellow paint
D.
12 pints of blue paint and 9 pints of yellow paint
2 answers:
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Answer:
The frequency of oranges is the classroom is 47.37%.
Step-by-step explanation:
The relative frequency of oranges is the number of oranges divided by the total number of fruits.
We have that:
8 students brought 2 apples each. So there are 8*2 = 16 apples
4 students brought an apple and an orange each. So there are 16 + 4*1 = 20 apples and 4*1 = 4 oranges.
7 students brough 2 oranges each. So there are 4 + 2*7 = 18 oranges.
There are 18 oranges, and 20+18 = 38 fruits in total.
So the frequency of oranges in the classrom is