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3 years ago

A store has all board games on sale for 25% off the

Mathematics

2 answers:

Dennis_Churaev [7]3 years ago

6 0

Answer:

$7.20

Step-by-step explanation:

We'll need to find out 40% of 12 then subtract that amount because we're still paying 60% of the original price.

Change the percent to a decimal: 0.4

Multiply the sale price and the decimal

12 · 0.4 = 4.8

Subtract 40% of the price from 12

12 - 4.8 = 7.2

The clearance price of the checker set is $7.20

timurjin [86]3 years ago

6 0

Answer:

If both the board games discount and the clearance discount affect the item, this means it is 65% off. 65% of 12 is 7.8, therefore we subtract that amount from 12 and get 4.2, or $4.20.

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Debora [2.8K]

Answer:

13.8 feet long.

Step-by-step explanation:

The end two pieces are 3.6 feet long.

The middle board must be 0.82 longer than the 3.6 feet.

The easy way to do this is to realize that the length of the middle part is 1.82 times the length of each of the end pieces.

1.82 * 3.6 = 6.552 feet long.

So the total length of the board must be

3.6 + 3.6 + 6.552 = 13.752 feet long. (That's a pretty long board).

Rounded it becomes 13.8 feet long.

6 0

3 years ago

Find the sum of the arithmetic sequence 22, 11, 0, -11, ..., –77.

blagie [28]

Answer:

Step-by-step explanation:

First you need to figure out how many numbers there are, so with this you can simply count 10. Then use the formula to plug in the numbers: 10(22-77)/2 to get the answer.

7 0

4 years ago

The area of a circle is 60.12cm find the length of the radius rounded to 2 dp.

Rufina [12.5K]

Answer:

Before you write the answer to your question, make sure the question is asking for the actual value of pi or 3.14.

If the question was asking for the question to be completed with the ACTUAL VALUE of pi, then your answer is ----> 4.37

If the question was asking for the question to be completed with the rounded of pi (3.14), then your answer is ----> 4.38

It's a subtle difference, but remember, there is no such thing as close in math, it's either right or wrong.

Step-by-step explanation:

Given: Circle's Area, 60.12

<u><em>As the value of pi was not directly stated, I will divide the answer into 2 portions, portion one with the answer with the actual infinite value of pi, and one where I will describe how to do it with 3.14 as pi. </em></u>

Explanation with 3.14:

First thing first, know the formula for calculating the area of a circle:

$A = \pi r^2$

$A$ stands for Area, and $r$ stands for Radius

Now, plug in the given values:

$60.12 = \pi r^2$

Next, replace 3.14 for pi:

$60.12 = (3.14)r^2$

Then, divide both sides by 3.14 ,which gives us:

$19.15 = r^2$

Please note: 19.15 is rounded

Anyway, to isolate $r$ , we take the square root of both sides:

$\sqrt{19.15} = \sqrt{x^2}$

The square root and square on the right side of the equation cancel out, and we are left with:

$4.38 = r$

Please note that 4.38 was rounded

4 0

2 years ago

6 times the sum of a number and 7 is 18

lutik1710 [3]

The simplest way to find this number is to add your two known values (7 and 6) which should be 13. Now you should subtract it from 18. (18-13). That should equal to 5, which is your answer.

5 0

3 years ago

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Please help!!

Free_Kalibri [48]

Answer:

I believe it would be C, 8 squared.

Step-by-step explanation:

8 squared means to multiply 8 twice. Not by two, 8 times 8. If you do that, you will get 64. This means that 8 squared is equivalent to 64'1

3 0

3 years ago

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