A bag initially contains red marbles and blue marbles only, with more blue than red. Red marbles are added to the bag until only 1/4 of the marbles in the bag are blue. Then yellow marbles are added to the bag until only 1/7 of the marbles in the bag are blue. Finally, the number of yellow marbles in the bag is
doubled. What fraction of the marbles now in the bag are yellow?
(A) 1/5
(B) 1/4
(C) 1/3 (D) 3/5 (E) 1/2

answer: a

step-by-step explanation:

10.2 units

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

step-by-step explanation:

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