I have a difficulty in ratio and I'd rather need help to fail in my exam . Can @Brainly.com help me in ratio ?
Answers
hey there!!
Answer:
In mathematics, a ratio indicates how many times one number contains another. For example, if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six. Similarly, the ratio of lemons to oranges is 6∶8 and the ratio of oranges to the total amount of fruit is 8∶14.
Step-by-step explanation:
Olivia wants to make pancakes for nine friends, but her recipe only makes enough pancakes for three friends (the recipe is shown below). What quantity of the ingredients will she need to use?
Pancake recipe (serves 3)
- 100g flour
- 300ml milk
- 2 large eggs
To solve this question, you must first identify the ratio. This is a three-part ratio, whereby:
- 100g flour
- 300ml milk
- 2 large eggs
= 100:300:2
Next, you need to work out how much you need to scale the recipe by.
This recipe is for three people, but Olivia needs a recipe for nine.
As 9/3 = 3, the ratio needs to be scaled by three (this is sometimes expressed as by a factor of 3).
You then need to multiply each part of the ratio by 3:
- 100 x 3 = 300
- 300 x 3 = 900
- 2 x 3 = 6
Therefore, to make enough pancakes for nine people, Olivia will need to use 300g flour, 900ml milk and 6 large eggs.
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