price - (1/4)×price = price×(1 - 1/4) = (3/4)×price
... = (3/4)×5.90 = 4.425 ≈ 4.43 . . . . . sale price
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The sale price could be 4.42 if the discount is rounded up, rather than the price being rounded up. If you first compute the discount as (1/4)×5.90 = 1.475 ≈ 1.48, then the half-penny goes to the customer, not the shop-keeper.
Answer:
y = (-1/4)*x+2
Step-by-step explanation:
The equation is written this way : y= mx+c
- m is the slope and c is a constant
- m = (f(4)-f(-4))/(4-(-4))= (1-3)/8 = -1/4
- y = (-1/4)*x + c
- replace x and y by the coordinates of a point to get c
- 1 = -1/4*4+c
- 1= -1+c
- c= 2
y = -1/4*x+2
Anything in absolute value signs like this |-1| is positive so it would be positive 1 instead of negative. For instead question one is -1. Hope this helps you!
Answer:
Step-by-step explanation:
<u>Solving Equations Using Successive Approximations</u>
We need to find the solution to the equation
where
The approximation has been already started and reached a state for x=2.5 where
The difference between the results is 0.25, we need further steps to reach a good solution (to the nearest tenth)
Let's test for x=2.4
The new difference is -0.2+0.24=0.04
It's accurate enough, thus the solution is
