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2 years ago

Serect the correct answer.

Mathematics

1 answer:

Debora [2.8K]2 years ago

8 0

Answer:

m = 2d + 15

m = d + 22

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Select a counter-example that makes the conclusion false. 3is prime, 5 is prime, 7 is prime

Butoxors [25]

5^3+7

Hope i helped.

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3 years ago

Read 2 more answers

Last year the backgammon club had 30 members this year the club has 24 members find the percent of decrease of members

olchik [2.2K]

Answer:

Percent Decrease = 20% Decrease

Step-by-step explanation:

To find percentage decrease, we will use a simple formula shown below:

Percentage Decrease/Increase = $\frac{New-Old}{Old}*100$

Where

New is the latest number of members (which is 24)

Old is the initial number of members (which is 30)

<em>Note: the multiplication by a factor of "100" brings the answer to a percentage</em>.

Now, lets substitute the numbers and figure out the percentage decrease:

$\frac{New-Old}{Old}*100\\\frac{24-30}{30}*100\\\frac{-6}{30}*100\\-0.2*100\\-20$

So, it comes to -20, which is a decrease of 20%

7 0

3 years ago

If y is proportional to x and y = -15 when x = -20, what is the value of x when y = 12?

Alex

When y=-15, x=-20. So subtract x from y, you will get that y= 0 and x=-5. Add 12 to both and you have your answer, x=7 and y=12

7 0

2 years ago

A rectangle is 6m wide and 11m long. How long is the diagonal of the rectangle?

Svet_ta [14]

Answer:

≈12.53

Step-by-step explanation:

7 0

3 years ago

Which is the simplified form of the expression?

Anon25 [30]

Given:

Consider the given expression is:

$10n-\dfrac{1}{3}(9n-12)$

To find:

The simplified form of the given expression.

Solution:

We have,

$10n-\dfrac{1}{3}(9n-12)$

Using distributive property, it can be written as:

$=10n-\dfrac{1}{3}(9n)-\dfrac{1}{3}(-12)$

$=10n-3n+4$

$=7n+4$

Therefore, the correct option is A.

4 0

3 years ago