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2 years ago

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

Mathematics

3 answers:

Lelu [443]2 years ago

7 0

Answer:

20%

Step-by-step explanation:

just took test plz mark as brainliest

Finger [1]2 years ago

4 0

Answer:yes its 20%

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

Guest1 year 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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Stephanie is a very good soccer player. She can kick a soccer ball with an initial velocity of

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H(x)=−4.9x2+21.3x? we want to know what x is when the ball hits the ground well when the ball hits the ground the height between the ball and the ground is 0 so you want to solve for x when h(x)=0

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2 years ago

Which quadratic equation is equivalent to (x2 – 1)2 – 11(x2 – 1) + 24 = 0? u2 – 11u + 24 = 0 where u = (x2 – 1) (u2)2 – 11(u2) +

Vinvika [58]

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2 years ago

Read 2 more answers

You are still debating about the two different computers. If you are paid $10.00/hour and your deductions are FICA (7.65%), fede

sattari [20]

Answer:

89 hours

Step-by-step explanation:

First solve all the deductions.

For each multiply the $10, which you are paid, and the percentage.

For FICA: $10 x 0.0765 = $0.77 per hr

For Fed tax: $10 x 0.12 = $1.2 per hr

For State tax: $10 x 0.08 = $0.8 per hr

Now subtract the remaining pay:

10 – 0.77 – 1.2 – 0.8 = $7.23

Time required = $640 / $7.23 per hr

Time required = 89 hrs

Final answer:

89 hours

8 0

2 years ago

In a 3M Privacy Filters poll, 806 adults were asked to identify their favorite seat when they fly, and 492 of them chose a windo

Snowcat [4.5K]

Answer:

Step-by-step explanation:

If majority of adults prefer a window seat when they fly, it means that more than half or more than 0.5 of the population prefer a window seat when they fly.

We would set up the hypothesis test.

For the null hypothesis,

p = 0.45

For the alternative hypothesis,

p > 0.5

Considering the population proportion, probability of success, p = 0.5

q = probability of failure = 1 - p

q = 1 - 0.5 = 0.5

Considering the sample,

Sample proportion, P = x/n

Where

x = number of success = 492

n = number of samples = 806

P = 492/806 = 0.61

We would determine the test statistic which is the z score

z = (P - p)/√pq/n

z = (0.61 - 0.5)/√(0.5 × 0.5)/806 = 6.24

From the normal distribution table, the p value < 0.00001

Since alpha, 0.01 < than the p value, then we would reject the null hypothesis. Therefore, at a 1% significance level, we can conclude that the majority of adults prefer a window seat when they fly.

8 0

2 years ago

Joe bought a box of laundry detergent that contains 195 scoops. Each load of laundry uses 2 1/2 scoops. How many loads of laundr

Crank

Answer:

a) Number of laundry he can do with this box = 78 laundries.

b) Price he paying for each load = 0.256 $

Explanation:

Total scoop contained in detergent box = 195 scoops.

Scoops used by each load of laundry = $2\frac{1}{2} =\frac{2*2+1}{2} =\frac{5}{2}$ scoops = 2.5 scoops

Number of laundry he can do with this box = 195/2.5 = 78 laundries.

Price of detergent box = 19.99 $

Price he paying for each load = Total price/ Number of loads

= 19.99/78

= 0.256 $

5 0

1 year ago