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harina [27]
3 years ago
15

Please answer these three questions!!! FAST!!!!

Mathematics
1 answer:
AlladinOne [14]3 years ago
7 0

Answer:

1- 300m

2- 0

3- 15m

Step-by-step explanation:

1- 300m

2- 0

3- 15m

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How do you solve this linear systems of equations?<br> x+3y−z=24<br> x+2y+5z=13<br> x+z=12
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I hope this helps you

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3 years ago
The perimeter of a triangle is 32 feet. One side of the triangle is 3 times the second side. The third side is 12 feet longer
Ivenika [448]

We have a triangle whose perimeter is 32 feet. Some information regarding the sides of the triangle is given:

GiveN:

  • One side is 3 times the second side.
  • Third side is 12 feet longer than the second side.

As we can see that, two sides of the triangle are defined the second sides. It means First and third side can be expressed in the form of second side.

  • So let the second side be x

Then,

  • First side = 3x
  • And, third side = x + 12

We know that, perimeters is the sum of the lengths of all sides of the triangle, So it can be written as:

3x + x + x + 12 = 32

Solving it further,

5x + 12 = 32

Subtracting 12 from both sides,

5x + 12 - 12 = 32 - 12

5x = 20

Dividing 5 from both sides,

\frac{5x}{5}  =  \frac{20}{5}

x = 4

Then,

  • First side = 3x = 12 feet
  • Second side = 4 feet
  • Third side = x + 12 = 16 feet

And we are done with the answer !!

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4 0
3 years ago
Sam bought a teddy bear for $3.75 and a stuffed unicorn for $7.50. He gave the cashier $20. How much change did he receive? *
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Answer:

3.75+7.5 = 11.25

20 dollars in total how much change.

20 - 11.25 = 8.75

$8.75 change

7 0
2 years ago
41 percent of 78 is what?
lisabon 2012 [21]

Answer:

31.98

Step-by-step explanation:

78 * .41 = 31.98

5 0
3 years ago
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Betsy started a business 2 years ago. She had 8 customers in the first year. She added 18
denpristay [2]

Answer:

Step-by-step explanation:

If im correct it will be no because...

18 x 3 = 54

Now you do

54 + 54 = 216

I might be right or wrong (sorry if i got it wrong)

5 0
3 years ago
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