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VLD [36.1K]
3 years ago
15

Desmond ordered his favourite pizza with 1 2 12 slices. Sadly, he could finish only 7 5 % 75% of the whole pizza. How many pizza

slices were left?
Mathematics
1 answer:
Gala2k [10]3 years ago
7 0

Answer:

3 pizza slices.

Step-by-step explanation:

We have been given that Desmond ordered his favorite pizza with 12 slices. Sadly, he could finish only 75% of the whole pizza.

As Desmond ate 75% of 12 slices, so left number of slices will be equal to 25% of 12 slices.

\text{Number of pizza slices left}=\frac{25}{100}\times 12

\text{Number of pizza slices left}=\frac{1}{4}\times 12

\text{Number of pizza slices left}=3

Therefore, 3 pizza slices were left.

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From a pile of 100 pennies(P), 100 nickels(N), and 100 dimes(D), select 21 coins which have a total value of exactly $1.00. In y
Murrr4er [49]
So, you need 10 penny, 4 nickles and 7 dimes
Lets, check it.
According to the question,
total coins = 21
7 + 4 + 10 = 21
21 = 21.........................................true
Now,
their value should equal $1.00 = 100 cents
Penny = 1 cent
nickle = 5 cent
dime = 10 cent,
So,
(10 *1) + (4 * 5) + (7 * 10) = 100
10 + 20 + 70 = 100
100 = 100......................................true

 
So, you need 10 penny, 4 nickle, and 7 dimes
4 0
3 years ago
Identify the mean, median, and mode for the dot plot below.01 2 3 4MathBits.comNumbers of Brothers and SistersMeanMedianMode =
telo118 [61]

The mean, median and mode is 2 of the given data from the dot plot.

Given, the table is :

Number of brothers and sisters  0,0,1,1,1,2,2,2,2,2,3,3,3,4,4

First the mean

Mean = average which = sum of data points / # of data points

Sum of data points = 0+0+1+1+1+2+2+2+2+2+3+3+3+4+4 = 30

# of data points ( count the number of dots ) = 15

So average (mean) = 30/15

= 2

Next lets find the median.  

The median is the middle value.

We can find the median by listing the values and then meeting at the middle of the values

So we have 0,0,1,1,1,2,2,2,2,2,3,3,3,4,4

the list is odd, so we use median = n+1/2

= 15+1/2

= 16/2

= 8th term

= 2

Mode is simply the value that appears most.

The value that appears the most is 2 as it appears five times which is the most out of any other value.

Hence we get the mean, median and mode.

Learn more about Statistics here:

brainly.com/question/26941429

#SPJ9

               

6 0
1 year ago
Lowest common multiple of 12,18,56
Ira Lisetskai [31]

Step-by-step explanation:

12 = 2 × 2 × 3

18 = 2 × 3 × 3

56 = 2 ×2 × 2 × 7

Now

Common factor = 2

Remaining factor = 2 × 3 × 2 × 3 × 7

LCM = RF × CF

= 504

hence the lCM of 12 , 18 and 56 is 504...

...

8 0
2 years ago
Read 2 more answers
Jikki sells a stereo set for $836.00 . His commission on the sale is 8%. How much does he earn?
kolezko [41]

Answer:

He earns a commission of $66.88.

Step-by-step explanation:

8% of the stereo sale price comes out to 0.08($836.00) = $66.88

He earns a commission of $66.88.

5 0
3 years ago
Read 2 more answers
Use the standard normal distribution or the​ t-distribution to construct a 99​% confidence interval for the population mean. Jus
vichka [17]

Answer:

(25.732,30.868)

Step-by-step explanation:

Given that in a random sample of 42 ​people, the mean body mass index​ (BMI) was 28.3 and the standard deviation was 6.09.

Since only sample std deviation is known we can use only t distribution

Std error = \frac{s}{\sqrt{n} } =\frac{6.09}{\sqrt{42} } \\=0.9397

df = 42-1 =41

t critical for 99% two tailed = 2.733

Margin of error= 2.733*0.9397=2.568

Confidence interval lower bound = 28.3-2.568=25.732

Upper bound = 28.3+2.568=30.868

3 0
3 years ago
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