Answer:
Discounted amount = $10
Sales price = $40
Step-by-step explanation:
Given:
Phone cost = $50
Discount rate = 20%
Find:
Discounted amount and sales price
Computation:
Discounted amount = Phone cost x Discount rate
Discounted amount = 50 x 20%
Discounted amount = $10
Sales price = Phone cost - Discounted amount
Sales price = $50 - $10
Sales price = $40
Answer:
Height of the building that cast a shadow of 45 meters is 27 meters
Step-by-step explanation:
This is a direct variation and let height of the object represent H and shadow represent S
Hence H∝S
H = KS, where K=constant of proportionality
K = H/S
K = 6/10 = 0.6
Hence height of a building that cast a shadow of 45 meters
H = KS
H = 0.6 × 45 = 27 meters
Answer:
9
Step-by-step explanation:
Nine multiplied by 6 vice versa will give you 54 which is closest to 56.
The function is a sine function and, the height of the ball at equilibrium is a feet
<h3>How to determine the height at equilibrium?</h3>
The function of the height is given as:
h = a sin(b (t - h)) k
The above function is a sine function, and the amplitude of the function is the variable a
The amplitude is the height of the ball at equilibrium
Hence, the height of the ball at equilibrium is a feet
Read more about sine functions at:
brainly.com/question/9565966
#SPJ4
Answer:
Therefore he should sell 25 units of tacos to minimize his cost .
The minimum cost is $240.
Step-by-step explanation:
Given function,
where C is the cost in dollar to sell x units of tacos.
We know that,
If a function y(x)= ax²+bx+c,
then the function is minimum at 
Here a= 1 , b= -50 and c= 865.
Therefore
Therefore he should sell 25 units of tacos to minimize his cost .
putting the value of x in the given function
C(25)=25²-(50×25)+865
=240
The minimum cost is $240.
