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4 years ago

If the original price of $100 is decreased by 10% and subsequently

Mathematics

1 answer:

denpristay [2]4 years ago

6 0

Answer:

Step-by-step explanation:

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Lucy says

KatRina [158]

No this statement is not true.

Here are some examples:

$\frac{254}{2} = 127$

$\frac{774}{2} = 387$

Therefore,

It is proved that not every number which ends with 4 is halved to get a number which ends with 2.

6 0

3 years ago

A store owner buyso backpacks at a certain price and sells them at a higher price. The difference is called the markup. If she p

Svetradugi [14.3K]

The selling price is <u>$29.40</u>

<h3>EXPLANATION</h3>

10% of $21 = $2.10

$2.10 x 4 = $8.40 = 40%

$21 + $8.40 = <u>$29.40</u>

Hope this helps!

4 0

3 years ago

+ PRINCIPLES OF MATHEMATICS

GREYUIT [131]

Answer:

$9,840

Step-by-step explanation:

Let the money earned from college be 'x'.

Given:

Total money earned from the two jobs = $50,450

Money earned at the store = 1250 + 4(Money earned at college)

∴ Money earned at the store = $1250 +4x$

Now, total money earned by Erica is the sum of money earned at store and college. Therefore,

Total money = Money at store + Money at college

$50450=1250+4x+x\\5x+1250=50450\\5x=50450-1250\\5x=49200\\x=\frac{49200}{5}=\$9840$

Therefore, the money earned by Erica from her job at the college is $9,840.

3 0

3 years ago

Consider that lines u and v are parallel. Which equation models the relationship between the angles? What is the value of x? A)

anastassius [24]

Sent a picture of the solution to the problem (s).

5 0

3 years ago

A company wants to determine the level of interest among its employees for an annual summer picnic.The company wants to survey 2

mart [117]

Answer:

b)Use employee identification numbers to randomly select 200 employees.

Step-by-step explanation:

Complete question is :

What is the best way to randomly choose these 200 employees?

a) Choose 50 people from 4 of the 7 divisions at the company.

b) Use employee identification numbers to randomly select 200 employees.

c) Select the first 200 employees to arrive at work Monday morning.

d) Survey the first 200 people to enter the company cafeteria.

explanation:

'a' doesn't cover the other 3 divisions. On the off chance that all in a division were chosen, and the division were arbitrarily picked, that would be a cluster sample, however the decision isn't that.

the initial 200 representatives to show up excludes others without a substantial explanation, and the same for d.

Also,If we surveyed the first 200 people to enter the cafeteria, then the result might be biased because the type of person to enter the cafeteria early might be the type of person to want a picnic more. Kind of like if you wanted to determine the level of interest a school has of making math class last for twice as long, you wouldn't want to just ask the first 200 people that turn in their math test.

thus, randomly selecting 200 employee ID numbers would probably be the best method.

7 0

3 years ago