Answer:
Functions: y = -x + 11, y = 2x^2 - 6x + 4, y = 7
Not Functions: x = 3, x^2 + y^2 = 81, y^2 = -5x - 12
Solving a linear equation, we can conclude that each tin costs £0.75
<h3>How much does a tin of beans cost in pounds?</h3>
First, we know that Ed buys one box of eggs for £2.20.
Also two packs of bacon for £2.80 each.
And two tins of beans for X each.
Then the total cost is:
C = £2.20 + 2*£2.80 + 2*X
Now, we also know that when he pays with £10, he gets a change of £0.70.
Then we can solve the linear equation:
£10 - (£2.20 + 2*£2.80 + 2*X) = £0.70
£2.20 - 2*X = £0.70
£2.20 - £0.70 = 2*X
£1.50 = 2*X
£1.50/2 = X = £0.75
In this way, we can conclude that each tin costs £0.75
If you want to learn more about linear equations:
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Answer:
If it’s asking the cost per month it would be 4 dollars because 96 divided by 2 is 48 so that means he pays 48 dollars a year and so there is 12 months in a year so divide that by 12 and get 4 dollars a month but if it’s asking for cost per year it’s 48 dollars
Step-by-step explanation:
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