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alexdok [17]
3 years ago
7

4x + 9y = 29 x = 5y - 87

Mathematics
1 answer:
Sergio [31]3 years ago
8 0
What I would do here is substitute "5y -87" for x in the  first ecquation, since the second equation is already in the form "x=..." so:


4*(5y-87)+9y=29


getting rid of the bracket:

20y-348+9y=29


adding up:

29y=29+348

29y= 377

dividing by 29:

y=13


and now we can calculate x, which is 5*13-87=65-87=-22

so x=-22
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Lina20 [59]

Answer:

The answer is 3418.1 ft rounded to the nearest tenth.

Step-by-step explanation:

The total volume of the cylinder can be defined by the Area of circular base * Perpendicular height.

The area of the circular base can be calculated as

\pi \times  {r}^{2}

where r is the radius of the circular base, which is 8 ft.

The area of the circular base is

\pi \times  {8}^{2}  = 64\pi

We also know the height of the cylinder is 17 ft.

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64\pi \times 17 = 1088\pi = 3418.0528...

This will be rounded up to 3418.1 with the nearest tenth

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3 years ago
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Elodia [21]

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Step-by-step explanation:

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3 years ago
Which ordered pair is the solution to the system of equations?
kozerog [31]
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2 years ago
The equation of a circle is given below.<br> What is its center?
svp [43]

Answer:

( \frac{2}{3}, 0)

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4 years ago
Como puedo poner 2 3/5 en decimal​
Alex73 [517]

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To make it simple, turn the fraction into a "over 100" fraction to make it easier.

Multiple both numeriator and denominator by a specific number, to turn the denominator into a 100. You must times the numeriator as well since your changing the denominator.

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Now, put the whole number in front of the decimal symbol.

2.___

Now, take the numeriator and put it behind the decimal symbol.

2.60

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8 0
3 years ago
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