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allsm [11]
3 years ago
14

The price of a laptop was marked 80 percent off because it had a cracked screen.

Mathematics
3 answers:
Lelu [443]3 years ago
7 0

Answer:

20%

Step-by-step explanation:

just took test plz mark as brainliest

Finger [1]3 years ago
4 0

Answer:yes its 20%

Step-by-step explanation:i did the test and the other guy was right!tysm

Tj And Tay Daddy2 years ago
0 0

The price of a laptop was marked 80 percent off because it had a cracked screen.

Percents
Total
80%
20%
100%
x

$150


If this resulted in a savings of $600, what is the value of x in the table above?
15 %
20 %
25 %
40 %

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PLEASE HELPPPPP
dsp73

Answer:

see explanation

Step-by-step explanation:

the equation of parabola in vertex form is

y = a(x - h)² + k

where (h, k ) are the coordinates of the vertex and a is a multiplier.

here (h, k ) = (3, 1 ) , then

y = a(x - 3)² + 1

to find a substitute any other point on the graph into the equation.

using (0, 7 )

7 = a(0 - 3)² + 1 ( subtract 1 from both sides )

6 = a(- 3)² = 9a ( divide both sides by 9 )

\frac{6}{9} = \frac{2}{3} = a

y = \frac{2}{3} (x - 3)² + 1 ← in vertex form

------------------------------------------------------

the equation of a parabola in factored form is

y = a(x - a)(x - b)

where a, b are the zeros and a is a multiplier

here zeros are - 1 and 3 , the factors are

(x - (- 1) ) and (x - 3), that is (x + 1) and (x - 3)

y = a(x + 1)(x - 3)

to find a substitute any other point that lies on the graph into the equation.

using (0, - 3 )

- 3 = a(0 + 1)(0 - 3) = a(1)(- 3) = - 3a ( divide both sides by - 3 )

1 = a

y = (x + 1)(x - 3) ← in factored form

3 0
2 years ago
How many times dose 12 go into 41
jonny [76]

Answer:

3.42

Step-by-step explanation:

41/12 is 3.42

3 0
3 years ago
Read 2 more answers
Bob's age is 4 times greater than Susanne's age. Dakota is three years younger than Susanne. The sum of Bob's, Susanne's, and Da
belka [17]
Susanne is 16 years old.

b = Bob's age

s = Susanne's age

d = Dakota's age

Bob's age is 4 times greater than Susanne's age:

b = 4s

Dakota is three years younger than Susanne:

d = s - 3

The sum of Bob's, Susanne's, and Dakota's ages is 93:

b + s + d = 93


 solve these equations:

b = 4s

d = s - 3

b + s + d = 93


and get:

b = 64 years

s = 16 years

(remember that s = Susanne) 

d = 13 years
5 0
3 years ago
What is 15% of 60?? Can someone plz tell me how to calculate this as well??? Thanks!!!
earnstyle [38]
To convert a percentage to a decimal you move the decimal two places to the left. Therefore:

15.% becomes .15

You then multiply this decimal to the number you are trying to find the percentage of.

.15 × 60 = 9.

9 is 15% of 60.
4 0
3 years ago
I have 3 questions.
mote1985 [20]
Similar triangles are scales drawing of one another is true, what is the slope of this equations is undefined, to what line equation does the points are solution of sets are,35 the answer
8 0
2 years ago
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