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Alexus [3.1K]
2 years ago
6

Someone help me please

Mathematics
1 answer:
slega [8]2 years ago
4 0

First off what ummmmmm section of mathmatics are you doing?


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The perimeter is? Somebody help please !!!!!!!
Alexus [3.1K]

Answer:

The perimeter is 52

Step-by-step explanation:

Just add all the numbers together

13 + 9 + 3 + 7 + 5 + 15 = 22 + 10 + 20 = 32 + 20 = 52

4 0
2 years ago
Find three consecutive even integers such that the product of the first and second is 8 more than 38 times the third.
BigorU [14]

Answer:

40, 42 and 44

Step-by-step explanation:

Mark these even consecutive integers as (2n-2), 2n and (2n+2)

Note that since they are integers, n > 0 and 2n is always even

Writing the equation

(2n-2) * 2n = 38 * (2n+2) + 8

// divide both sides by 2

(2n-2) * n = 19 * (2n+2) + 4

2n^{2} - 2n = 38n + 38 + 4

2n^{2} - 2n - 38n - 38 - 4 = 0

2n^{2} - 40n - 42 = 0

// divide both sides by 2

<u />n^{2} - 20n - 21 = 0

// rewrite the equation

<u></u>n^{2} + n - 21n - 21 = 0

n * (n+1) - 21n - 21 = 0

n * (n+1) - 21 * (n+1) = 0

(n+1) * (n-21) = 0

// separate the two possible cases

n + 1 = 0 and n - 21 = 0

n = -1              n = 21

Note that here n has to be an integer, so case n = -1 can't be a solution. Therefore we use n = 21

Calculating the consecutive even integers

2n - 2 = 2 * 21 - 2 = 40

2n = 2 * 21 = 42

2n + 2 = 2 * 21 + 2 = 44

4 0
3 years ago
Refer to the attachment and solve
Gekata [30.6K]

Answer:

-8\frac{5}{8}

Step-by-step explanation:

\frac{-27}{4} +\frac{-15}{8}

\frac{-54}{8} +\frac{-15}{8}

\frac{-54-15}{8}

\frac{-69}{8}

-8\frac{5}{8}

6 0
2 years ago
You enter a room. 2 dogs, 4 horses, one giraffe, and a duck are laying on a bed. 3 chicken are flying over a chair. How many leg
Zepler [3.9K]

Answer: the answer is 28

Step-by-step explanation:

8 0
1 year ago
A restaurant sells 10 fish tacos for $8.49, or 6 chicken tacos for $5.40. Which is the better deal?
Vikentia [17]

Answer:

Chicken Tacos

Step-by-step explanation:

10 for 8.49= 8.49÷10=0.849

6 for 5.40=5.40÷ 6=0.900

10×.900=$9

8 0
2 years ago
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