Given:
Total number of marbles in the bag = 150
There are 21 blue marbles for every 4 white marbles.
To find:
The number of blue marbles in the bag.
Solution:
Since, there are 21 blue marbles for every 4 white marbles, therefore the ratio of blue marble to white marbles is 21:4.
Let the number of blue marbles be 21x and white marbles be 4x.
Total number of marbles in the bag = 150


Divide both sides by 25.


Now,



Therefore, the number of blue marbles is 126.
Answer:
x=12
Step-by-step explanation:
put the x at one side and the numbers ar the other
5/2x-3/4x=14+7
10/4x-3/4x=21
7/4x=21
7x=84
x=12
Answer:
120 peas in 3 pings
Step-by-step explanation:
(5x8)3
Answer:
9^2
so it is (m+9)^2
Step-by-step explanation:
i guess that is the correct answer
Answer:
7
Step-by-step explanation:
7 x 4 = 28 - 5 = 23
7 + 16 = 23