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3 years ago

What is £300 divided into a ratio of 3:7

2 answers:

7 0

First you add the ratio together 3+7=10 Then you do £300 divided by 10 = £30
Then you do £30 X 3 (from the ratio in the beginning) which equals £90 
Then you do £30 X 7 (also from the ratio in the beginning) which equals £210 
The ratio is £90:£210 
Also you can add the ratios up so that it equals £300 the number you started with 
£90+£210=£300 
Hope I helped :)

3241004551 [841]3 years ago

5 0

A) sum 3 + 7 =10
b) divide £300 ÷ 10 = £30
c) multiply:
3 x 30 = £90
7 x 30 = £210

Values are: £90 and £210

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State the domain and range of the following relation x^2+y^2=16

Vlada [557]

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<h3 /><h3>What is Domain and range?</h3>

The domain of a function is the set of values that we are allowed to plug into our function.

The range of a function is the set of values that the function assumes.

x² + y² = 16

y = √16 - x²

For domain under root should not be negative quantity,

16 - x²≥0

16≥x²

So, x≤4 or x≥4

Thus, the domain is [-4, 4]

Range:

y is maximum at x=0, y=4

y is minimum at x=4, y=0

Thus, range = [0, 4]

Learn more about domain and range here:

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cluponka [151]

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For this case we have the following expression:
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