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3 years ago

Kathy buys a bicycle after a 30% markdown. The original price was $490.00. What did she pay?

Mathematics

1 answer:

Umnica [9.8K]3 years ago

4 0

Answer:

$343

Step-by-step explanation:

To get 30% of 490 we divide 30% by 1

30% ÷ 1 = 147

Now, we subtract 490 by 147

490 - 147 = 343

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In a certain constituency, there are 8 500 voters and

babymother [125]

First let's find how much is 15% of 8500 voters.

To do that, we can multiply 15 by 8500 and then divide by 100.

Work: 15 x 8500 = 127500

127500/100 = 1275

Therefore 15 percent of 8500 is 1275.

Then, we subtract 1275 from 8500 to find the amount of people who did vote.

8500 - 1275 = 7,225

Thus, 7,225 people voted while 1,275 people did not.

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3 years ago

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Antonio finds a pair of skis that cost $350 before tax. Sales tax is 6%. What is the total cost Antonio will have to pay for the

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Answer:

$371

Step-by-step explanation:

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3 years ago

7¼× 8/9×3/4<br>find the sum

larisa86 [58]

Answer:

Step-by-step explanation:

$7\frac{1}{4}*\frac{8}{9}*\frac{3}{4}=\frac{29}{7}*\frac{8}{9}*\frac{3}{4}\\\\=\frac{29*8*3}{7*9*3}\\\\=\frac{29*2*1}{7*3*1}\\\\=\frac{58}{21}\\\\=2\frac{16}{21}\\$

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3 years ago

According to a study done by a university student, the probability a randomly selected individual will not cover his or her mou

solniwko [45]

Complete Question

According to a study done by a university student, the probability a randomly selected individual will not cover his or her mouth when sneezing is 0.267 Suppose you sit on a bench in a mall and observe people's habits as they sneeze

(a) What is the probability that among 18 randomly observed individuals exactly 6 do not cover their mouth when sneezing?

Answer:

$P(X=6)=(0.162)$

Step-by-step explanation:

From the question we are told that:

Sample size $n=18$

Probability $P=0.267$

No. that do not cover their mouth when sneezing $x=6$

Generally the equation for The Binomial distribution is mathematically given by

Parameters

B(18,0.267)

Therefore

$P(X=x)=(18..x)(0.267)^x(1-0.267)^{18-x}$

Where

$x=6$

Therefore

$P(X=6)=(18..6)(0.267)^6(1-0.267)^{18-6}$

$P(X=6)=(0.162)$

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3 years ago

Frank deposits 5350.00 in a savings account. The account pays an annual Interest rate of 1%. Ile makes no other deposits or with

9966 [12]

Answer:

If the account paid a <u>monthly</u> interest instead of <u>annual</u>, the answer would be $162.12

Step-by-step explanation:

<h3>PS: THIS ISN'T THE ANSWER TO THIS QUESTION BECAUSE IT STATED 'ANNUAL INTEREST' BUT I USED MONTHLY INTEREST INSTEAD. HOPE THIS HELPS SOMEONE ELSE THOUGH.</h3><h3><u>FIRST MONTH</u></h3>

Original value is $5350.00

Percentage increase(interest gained) is 1%

Total value after 1st month is equal to the Original Value + The interest

Do not try and do this altogether as you will get the answer wrong. Instead calculate month by month.

At the end of the <u>first month</u>, he has <em>($5350.00 + $53.50) = $5403.50</em>

<h3><u>SECOND MONTH</u></h3>

Original Value is $5403.50

Percentage increase(interest gained) is <em>still </em>1%

Total value after the 2nd month is equal to the Original Value+The interest

<u>ALWAYS</u> round off to the nearest cent before continuing.

At the end of the <u>second month</u>, he has <em>($5403.50 + $54.04) = $5457.54</em>

<h3><u>THIRD MONTH</u></h3>

Original Value is $5457.54

Percentage increase(interest gained) is 1%

Total value after the 3rd month is equal to the Original Value + The interest

When rounding off, if the number is 5 or higher, add 1 to the digit before it.

At the end of the <u>third month</u>, he has <em>($5457.54 + $54.58) = $5512.12</em>

The question asks, how much interest did his money earn. If you calculated like how I did above, picking the interest should be easy.

Simply add, the first month's interest, to the second month's interest, to the third month's interest.

<em>$53.50 + $54.04 + $54.58 = $162.12</em>

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3 years ago