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insens350 [35]
3 years ago
11

Assume that all intersecting sides meet at right angles

Mathematics
1 answer:
givi [52]3 years ago
8 0

Answer:

6

Step-by-step explanation:

15-9

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find three consecutive even integers so that the twice the sum of the second and third is twelve less than six times the first
zysi [14]

n, n + 2, n + 4 - three consecutive even integers

the twice the sum of the second and third: 2[(n + 2) + (n + 4)]

twelve less than six times the first: 6n - 12

The equation:

2[(n + 2) + (n + 4)] = 6n - 12

2(n + 2 + n + 4) = 6n - 12

2(2n + 6) = 6n - 12       <em>use distributive property</em>

(2)(2n) + (2)(6) = 6n - 12

4n + 12 = 6n - 12       <em>subtract 12 from both sides</em>

4n = 6n - 24       <em>subtract 6n from both sides</em>

-2n = -24        <em>divide both sides by (-2)</em>

n = 12

n + 2 = 12 + 2 = 14

n + 4 = 12 + 4 = 16

<h3>Answer: 12, 14, 16</h3>
4 0
3 years ago
Answer please! I have been "getting" the correct answer, as far as I know. The answer which I got was 10x^2 - 4x. But I don't se
GarryVolchara [31]

Answer:

The answer is 10x² - 4x.

Step-by-step explanation:

You have to apply Distributive Law,

a(m + n) = am + an

So for this question :

2x(5x - 2)

= 2x(5x) + 2x( - 2)

= 10 {x}^{2}  - 4x

4 0
3 years ago
Sarah drives her car 133 miles in 285 minutes. What is her average speed in miles per hour?
borishaifa [10]

Answer:

28 miles per hour

Step-by-step explanation:

133 miles/285 minutes = 133 miles/4.75 hours = 28 miles/hour

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You do the following.

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Since we know what the price of a text message and the difference in dollars between the two subscriptions, we can calculate how many text messages has to be sent. We just divide the result from before ($10) with the price of a text message ($0.2)

$10/$0.2 = 50

The total number of text messages that needs to be send in order for the price of the subscriptions to be the same, is 50.
4 0
3 years ago
A train leaves Philadelphia at 3 PM. The second train leaves the same city in the same direction at 9 PM. What is the speed of t
Musya8 [376]
This question is lacking vital information, such as when they got there.
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