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3 years ago

7

2.6 divided by -0.2

2 answers:

Andrews [41]3 years ago

8 0

Just use a calculator

s2008m [1.1K]3 years ago

7 0

Answer:

-13

Step-by-step explanation:

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A bag contains 11 blocks numbered from 1 to 11. Two blocks are selected from the bag at the same time.

vaieri [72.5K]

Event E is the two numbers are not even.
The complement of event E is the two numbers are even.
The number of outcomes of the complement of event E is 5 * 4 = 20, but since the outcome 2, 4 is the same as the outcome 4, 2, you need to divide the number of outcomes by 2.

Answer: 10

6 0

4 years ago

Read 2 more answers

9. Find the area of the shaded region.<br> 22 cm<br> 10 cm<br> 7 cm

german

Answer: 255cm2
Explanation: see photo

8 0

1 year ago

If the cost of an item increased by a percentage and decreased by the same percentage, what would that percentage be if the new

Orlov [11]

The percentage, if the new cost was 84% of the original is 40%

Let the cost of the item be x.

When the price increased by y%, the new price is:

$New =x \times (1 + y\%)$

When the price decreased by the same percentage (i.e. y%), the new price is:

$New =x \times (1 + y\%) \times (1 - y\%)$

The cost is said to be 84% of the original price.

So, we have:

$x \times (1 + y\%) \times (1 - y\%) =84\% \times x$

Divide both sides by x

$(1 + y\%) \times (1 - y\%) =84\%$

Apply the difference of two squares

$1 - (y\%)^2 =84\% \\\\$

Subtract 1 from both sides of the equation

$- (y\%)^2 =-16\%$

Cancel out the common factors

$(y\%)^2 =16\%$

Take the square root of both sides

$y\% =0.4$

Multiply both sides by 100

$y =40$

Hence, the percentage is 40%

Read more about percentage change at:

brainly.com/question/809966

8 0

3 years ago

What’s step one to solving equations with decimals

dexar [7]

Line them up by the decimal point

4 0

3 years ago

A parking lot has 27 spaces total. if 9 of the spaces have cars in them, what is the ratio empty spaces to filled spaces?

bonufazy [111]

Answer:

2 : 1

Step-by-step explanation:

27 total

9 filled

27 - 9 = 18 empty

18 : 9

2 : 1

8 0

3 years ago