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zalisa [80]
3 years ago
15

The sides of a quadrilateral are x,x+3,x+4,x+5. it’s perimeter is 52, find the lengths of the sides

Mathematics
1 answer:
wariber [46]3 years ago
4 0

Answer: 10 , 13 , 14 , 15

Step-by-step explanation:

To find the perimeter of a quadrilateral , we will add all its side , that is

Perimeter = x + x + 3 + x + 4 + x + 5

That is

52 = x + x + 3 + x + 4 + x + 5

52 = 4x + 12

subtract 12 from both sides

40 = 4x

divide through by 4

x = 10

therefore , the lengths of the sides are

10 , 10+3 , 10 + 4 , 10 + 5 , that is

10 , 13 , 14 , 15

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What is the value of the expression: 2 - (3x + 5y) if x = -3 and y = 4?
WARRIOR [948]
<h3>Hello there today we will solve your problem</h3>

here is our equation,

2-(3x+5y),

Now we will plug in our numbers

__________________

  1. {\boxed{x=-3}}
  2. {\boxed{y=4}

__________________

2-(3\cdot-3+5\cdot4)

simplify it and we get

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7 0
2 years ago
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If 20% of a school was made up of out-of-district students last year, but the number of out-of-district students increased by 50
Nadya [2.5K]

Answer:

<h2>30% is enrolled out-of-district.</h2>

Step-by-step explanation:

According to the word problem, the number is increased by 50%.

To increase a number by a percent, multiply the number and the percent.

We can do this by changing both percents to decimals.

To change a percent to a decimal, divide it by 100.

20/100 = 0.2

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The number is INCREASED by 50% so 0.5 would become 1.5.

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4 0
3 years ago
Write as a product:<br> a2+b2–2ab –25
kozerog [31]

Answer:  -a2 - 2ab - b2 + 25  =

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Final result :

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Step-by-step explanation:

3 0
3 years ago
I am doing math and in it i have to find the answer to 3^12 ans 7^9 and when i ut it in the calculator it said 2.1445561e+13 and
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Answer:

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Step-by-step explanation:

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Welcome! Hope this helps.

7 0
3 years ago
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6 0
3 years ago
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