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laiz [17]
4 years ago
9

A store decreases the price of an item from 120$ to 96$ what is the percent decrease

Mathematics
2 answers:
a_sh-v [17]4 years ago
8 0
Answer should be a 20% decrease
Paul [167]4 years ago
6 0
The percent of decrease formula is percent of decrease divided by original value. So the equation would be 24/120, which is 20 percent decrease
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6 + −28 − x = -2<br> -------------<br> x
nexus9112 [7]
The answer is x=-20.
6+ -28 -x =-2
You first add 28 to each side=6+-x=26 then you minus 6 from each side=-x=20.
Then you divide 20 by -x resulting in x=-20
3 0
4 years ago
Read 2 more answers
[6+4=10 points] Problem 2. Suppose that there are k people in a party with the following PMF: • k = 5 with probability 1 4 • k =
kirza4 [7]

Answer:

1). 0.903547

2). 0.275617

Step-by-step explanation:

It is given :

K people in a party with the following :

i). k = 5 with the probability of $\frac{1}{4}$

ii). k = 10 with the probability of $\frac{1}{4}$

iii). k = 10 with the probability $\frac{1}{2}$

So the probability of at least two person out of the 'n' born people in same month is  = 1 - P (none of the n born in the same month)

= 1 - P (choosing the n different months out of 365 days) = 1-\frac{_{n}^{12}\textrm{P}}{12^2}

1). Hence P(at least 2 born in the same month)=P(k=5 and at least 2 born in the same month)+P(k=10 and at least 2 born in the same month)+P(k=15 and at least 2 born in the same month)

= \frac{1}{4}\times (1-\frac{_{5}^{12}\textrm{P}}{12^5})+\frac{1}{4}\times (1-\frac{_{10}^{12}\textrm{P}}{12^{10}})+\frac{1}{2}\times (1-\frac{_{15}^{12}\textrm{P}}{12^{15}})

= 0.25 \times 0.618056 + 0.25 \times 0.996132 + 0.5 \times 1

= 0.903547

2).P( k = 10|at least 2 share their birthday in same month)

=P(k=10 and at least 2 born in the same month)/P(at least 2 share their birthday in same month)

= $0.25 \times \frac{0.996132}{0.903547}$

= 0.0.275617

6 0
3 years ago
Someone help me with culinary math?
iragen [17]

Answer:

Step-by-step explanation:

sugar: half - 1/6 cup , double - 2/3 cup

mirin: half - 1/8 cup , double - 1/2 cup

shoyu: half - 6 Tbsp , double 1 1/2 cup

flour: half - 5/8 pound , double 2 1/2 pounds

chicken: half - 1 1/4 pounds , double: 5 pounds

6 0
3 years ago
You are driving on a highway and are about 55 miles from a state border. You set your cruise control at 60 miles per hour and pl
kumpel [21]

Based on your distance from the state border and the cruise control speed, the minimum and maximum hours you will have cruise control on is:

  • Minimum - 1/3 hours
  • Maximum - 1.5 hours

<h3>How long will cruise control be on?</h3>

You are 55 miles from the state border. You want to put the cruise control off within 35 miles of the border on either side.

This means that you might put it off in:

= 55 - 35

= 20 miles

The time to 20 miles is the minimum time the cruise control will be on:

= 20 miles / 60 miles per hour

= 1/3 hours

If you put it off 35 miles after the border, the distance is:

= 55 + 35

= 90 miles

The maximum time is:

= 90 / 60

= 1.5 hours

Find out more on time and distance at brainly.com/question/17146782

#SPJ1

4 0
2 years ago
Bring the fraction a/a-4 to a denominator of 16-a^2
Dmitry_Shevchenko [17]

Answer:

a / (a - 4) = a(a + 4) / ((a - 4)(a + 4)) = (a^2 + 4a) / (a^2 - 16) = -(a^2 + 4a) / (16 - a^2)


3 0
4 years ago
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