Answer:
Shandra would pay $27.50 for 5 slices
Cost = 20+1.50x
Step-by-step explanation:
Given

per slice
Solving (a): Cost of 5 slices
Represent the total price with y and the number of slice with x.
So, we have:

This gives:

In this case: x = 5.
So, we have:



<em>Shandra would pay $27.50 for 5 slices</em>
<em></em>
Solving (b): Cost of x slices
This has been solved in (a).


Hence, the cost of x slices is 20+1.50x
Answer:

Step-by-step explanation:

Swap sides:

Multiply both sides by 5:


<u>Answer</u>:-
Simply you can google see :
Answer:
−x2+2x−1=0
Step-by-step explanation:
To write an equation in standard form, move each term to the left side of the equation and simplify.
ax2+bx+c=0
Move 1
to the left side of the equation by subtracting it from both sides.
2x−x2−1=0
Reorder the polynomial.
−x2+2x−1=0