If a ratio is 4:5, how many parts are there in
total?

15 is the main answer, and 12 isthe second answer.

Step-by-step explanation:

Brainliest?

 The required number of yellow jelly beans is 36.

Step-by-step explanation:  Given that the ratio of red jelly beans to yellow jelly beans in a dish is 3:4. If Greg eats 3 red jelly beans and six yellow ones, the ratio is 4:5.

We are to find the number of jelly beans that were originally on the dish.

Let 3x and 4x represents the number of red jelly beans and yellow jelly beans respectively.

Then, according to the given information, we have

So, the number of yellow jelly beans is given by

Thus, the required number of yellow jelly beans is 36.

Solution: Let us suppose there are m men and w women on bus.

Therefore, we have:

Also we know that after 4 women got off, the ratio of men to women becomes 4:5

We can write:

       (cross multiplication)

Therefore, there are 16 men on bus

15 is the main answer, and 12 isthe second answer.

Step-by-step explanation:

Brainliest?

300 girls were there in the gym.

Step-by-step explanation:

Given:

The ratio of the number of boys to the number of girls was 4:3, after 160 boys left the gym, the ratio became 4:5.

Now, to find the number of girls in the gym.

The girls in the gym does not left, their quantity is same before and after.

So, we multiply the both ratios to make the girls ratio same:

4:3 × 5 = 20:15

4:5 × 3 = 12:15

Now, we find the units of the ratio.

The ratio of boys dropped down by 160:

20 - 12 = 8 units.

160 = 8 units

Now, dividing both sides by 8 we get:

20 = 1 unit

So, 1 unit = 20.

Now, girls = 15 units

So, 15 × 20 = 300.

Therefore, 300 girls were there in the gym.

 The required number of yellow jelly beans is 36.

Step-by-step explanation:  Given that the ratio of red jelly beans to yellow jelly beans in a dish is 3:4. If Greg eats 3 red jelly beans and six yellow ones, the ratio is 4:5.

We are to find the number of jelly beans that were originally on the dish.

Let 3x and 4x represents the number of red jelly beans and yellow jelly beans respectively.

Then, according to the given information, we have

So, the number of yellow jelly beans is given by

Thus, the required number of yellow jelly beans is 36.