She would need 17 pizzas to feed everyone if there is 50 and 14 if there is there is 40. it would cost her 195.50 dollars for 50 people and 161 for 30
In summary. The graph of each equation is a straight line, m is the gradient of the line and c is the y-intercept. Conversely, if a straight line has gradient m and y-intercept c it has equation y = mx + c.
Answer:
Exact Form: x
= 194
/45
Decimal Form:
x
=
4.3 1
Mixed Number Form:
x
=
4 14
/45
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