Full working out for this question please.
1 answer:
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A the slope of the line is 1
to calculate the slope m , use the ' gradient formula '
m = ( y₂ - y₁ ) /( x₂ - x₁ )
where (x₁, y₁ ) = 6, 3) and (x₂, y₂ ) = (9, 6)
m = =
= 1
Answer:
Cost of a package of celery = $20
Step-by-step explanation:
Let, x=carrots and y= celery.
So from the given data we get 2 equations
Equation 1]:-
------------(for 9 package carrot and 12 package celery)
Equation 2]:-
---------------(for 1 package carrot and 3 package celery)
After solving equation 2 we get,
------------------------(equation 3)
Now substituting equation 3 in equation 1,
∴
------------------(equation 4)
Therefore cost of a package of celery = $20