The ratio of cherry tomatoes to people in a toasted salad is 7:15 if Waldo wants to serve 105 people how many cherry tomatoes will Waldo use?

The ratio of pineapples to people for a chocolate fondue dessert is 1 to 5 if deb wants to serve 80 people how many pineapples will deb use?

The ratio of hot dogs to people at a cookout is 7/3. if Kenny wants to serve 27 people how many hot dogs will kenny use?

The ratio of people to Pizza for a party is 13/3. how many people will be served if deb is using 30 pizzas?

Please help

I'll do the first one.

7/15 = x/105
15x = 735
x = 49

Do the others the same way.

1/5 = x/80

Cross multiply,

5x = 80

Divide both sides by 5.

x = 16

She needs 16 pineapples.

The ratio of hot dogs to people at a cookout is 7/3. If Kenny wants to serve 27 people how many hot dogs will Kenny use

What is the answer

To solve these questions, we will use ratios and proportions.

1. For the first question, the ratio of cherry tomatoes to people is 7:15. This means that for every 7 cherry tomatoes, there are 15 people.
To find out how many cherry tomatoes Waldo will use to serve 105 people, we set up the proportion:

7/15 = x/105

By cross-multiplying, we get:
15x = 7 * 105

To solve for x, divide both sides of the equation by 15:
x = (7 * 105) / 15

Therefore, Waldo will use approximately 49 cherry tomatoes.

2. For the second question, the ratio of pineapples to people is 1:5. This means that for every 1 pineapple, there are 5 people.
To find out how many pineapples Deb will use to serve 80 people, we set up the proportion:

1/5 = x/80

By cross-multiplying, we get:
5x = 1 * 80

To solve for x, divide both sides of the equation by 5:
x = (1 * 80) / 5

Therefore, Deb will use approximately 16 pineapples.

3. For the third question, the ratio of hot dogs to people is 7/3. This means that for every 7 hot dogs, there are 3 people.
To find out how many hot dogs Kenny will use to serve 27 people, we set up the proportion:

7/3 = x/27

By cross-multiplying, we get:
3x = 7 * 27

To solve for x, divide both sides of the equation by 3:
x = (7 * 27) / 3

Therefore, Kenny will use approximately 63 hot dogs.

4. For the fourth question, the ratio of people to pizza is 13/3. This means that for every 13 people, there are 3 pizzas.
To find out how many people Deb will serve if she is using 30 pizzas, we set up the proportion:

13/3 = x/30

By cross-multiplying, we get:
3x = 13 * 30

To solve for x, divide both sides of the equation by 3:
x = (13 * 30) / 3

Therefore, Deb will serve approximately 130 people.

Thanks but i just dont understand them please help me with the others

on 3. What is the answer