1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Debora [2.8K]
3 years ago
11

Plz ans asap i havd limited time ill give brainliest

Mathematics
2 answers:
GarryVolchara [31]3 years ago
6 0
C) $128.

50% off of 320 is 160. And then there is an additional 20% off; 20% off of 160 is 160*0.8=128.
Artemon [7]3 years ago
5 0

Answer:

C. $128

Step-by-step explanation:

320 x 0.5 = 160

320 - 160 = 160

160 x 0.20 = 32

160 - 32 = 128

You might be interested in
Write an exponential function in the form y = ab^x that goes through points (0,20) and (2,320).
ExtremeBDS [4]

Answer:

y = 20*4^x

Step-by-step explanation:

to find the value of the constants a and b, we just need to use the points given in the equation and solve the system of equations:

point (0,20): x = 0 and y = 20:

20 = a*b^0 = a*1 = a

a = 20

point (2,320): x = 2 and y = 320

320 = 20 * b^2

b^2 = 16

|b| = 4

b = 4 or b = -4

So we have two exponencial equations that pass through these points:

y = 20*4^x and y = 20*(-4)^x

As the questions asks for just one equation, we can answer y = 20*4^x

8 0
3 years ago
Read 2 more answers
What is 372 rounded to the nearest 100
Xelga [282]
372

The number 3 is in the hundreds place.

Look to the number immediately to the right.

We know that 7 is bigger than 3.

So, we add 1 to 3 and the rest become 0.

Answer: 400
7 0
3 years ago
Read 2 more answers
Solve: 3a - 2.4 = 5.1 a = _____
Delicious77 [7]

Answer:

a=2.5

Step-by-step explanation:

3a-2.4=5.1   Add the like terms ( plus 2.4 cancels out -2.4)

   +2.4  +2.4

3a=7.5  Now divide by 3

/3     /3

a=2.5

7 0
3 years ago
A pair of AirPods cost $120 at the store. A
timofeeve [1]

Answer:

20 is the correct answer

7 0
3 years ago
Read 2 more answers
The height 'h' (in feet) of a ball in a baseball game can be modeled by h = -16t² + 28t + 8 , where 't' is the time (in seconds)
lidiya [134]

Answer:

  a)  No. t < 0 is not part of the useful domain of the function

  b) 2.0 seconds

Step-by-step explanation:

a) A graph of the function is shown below. It shows t-intercepts at t=-0.25 and t=2.0. We presume that t is measured forward from some event such as the ball being thrown or hit. The model's predicted ball location has no meaning prior to that event, when values of t are negative.

__

b) It is convenient to use a graphing calculator to find the t-intercepts. Or, the equation can be solved for h=0 any of several ways algebraically. One is by factoring.

  h = 0 = -16t² +28t +8 . . . . . . . . . . . . the ball hits the ground when h = 0

  0 = -4(4t² -7t -2) = -4(4t +1)(t -2)

This has t-intercepts where the factors are zero, at t=-1/4 and t=2.

The ball will hit the ground after 2 seconds.

4 0
3 years ago
Other questions:
  • It takes 78 days to create a custom motorcycle. Write an algebraic expression to describe the number of days it takes to create
    11·1 answer
  • Solve for x <br><br>2x + 5 equals 33
    12·2 answers
  • 9. A jewelry maker use 48 purple beads and 64 pink beads to make special bracelets. Each bracelet
    12·1 answer
  • Solve 3= -2v - v solve for v
    12·2 answers
  • Solve the following problem:<br> 2 6/10 = 91/x
    12·2 answers
  • The hypotenuse of a right triangle is 15cm long. One of the triangle’s legs is two times the length of the other leg. Find the l
    13·1 answer
  • Simplify the expression 2(x+4)−3(x+2).
    13·1 answer
  • Eiko is wearing a magic ring that increases the power of her healing spell by 30%. Without the ring, her
    13·2 answers
  • S
    9·1 answer
  • Clara surveyed 12 elementary school students in a regional spelling bee.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!