Part A: To find the amount of the discount multiply the regular price by the amount of the discount:
80 x 20% = 80 x 0.20 = 16
The discount is $16
Part B:
20% off means she would be paying 80% of the original price ( 100% - 20% = 80%)
Multiply the regular price by 80%:
120 x 80% = 120 x 0.80 = 96
She will pay $96
The answer is 2990.8 yd
Formula for SA of cylinder: 2*pi*r*h+2*pi*r^2
Formula for radius: diameter/2
Plug the radius, 17, height, 11, and pi, 3.14, into the formula above.
= 2990.8 yd
Answer:
y = - 0.5x - 1
Step-by-step explanation:
The equation is of the form
y = mx + c ( m is the slope and c the y- intercept )
m = - 0.5 is already given as y = - 0.5x
Using the ordered pair (0, - 1 ) ⇒ c = - 1
Thus
y = - 0.5x - 1 ← is the equation
Answer:
A.
Step-by-step explanation:
The total amount Akash paid in those 3 months for his cell phone bill.
Answer:
There are 14 4-point questions and 26 2-point questions.
Step-by-step explanation:
m = number of 4-point questions
n = number of 2-point questions
m+n =40
4m + 2n =108
You can solve system by elimination:
Multiply the 1st equation by -4 and keep the 2nd equation the same.
−4(m+n=40) → -4m -4n= -160
4m+2n=108 add them up
-2n = -52 divide both sides by -2
n = 26
plug it back in to solve for m
m + n = 40 →m + 26 =40 subtract 26 to both sides
m = 14