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Advocard [28]
3 years ago
7

System: -5x + 3y = 6 Y=7x - 14 (Solve with substitution) Find the x,y

Mathematics
1 answer:
Aleks04 [339]3 years ago
4 0

Answer:

x=3

y=7

Step-by-step explanation:

solve for the first variable in one of the equations, then substitute the result into the other equation.

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!!!The volume of a cylinder is 675π cm3. The radius of the base of the cylinder is 5 cm. What is the height of the​ cylinder?
kompoz [17]

Answer:

The answer is

<h2>27 cm</h2>

Step-by-step explanation:

Volume of a cylinder is given by

<h3>V = πr²h</h3>

where

h is the height

r is the radius

V is the volume

Since we are finding the height

h =  \frac{V}{\pi  {r}^{2} }

From the question

V = 675π cm³

r = 5 cm

Substitute the values into the formula and solve for the height

That's

h =  \frac{675\pi}{ {5}^{2}\pi }  \\  =  \frac{675\pi}{25\pi}  \\  =  \frac{675}{25}

We have the final answer as

27 cm

Hope this helps you

7 0
3 years ago
Mr. and Mrs. Gomez are buying carpet for their square shape bedroom which means 7 yd along each wall the carpet carpet is $24 pe
Tems11 [23]

Answer:

They will be spending 224 $

Step-by-step explanation:

24x7=168

8x7= 56

168+56=224

6 0
3 years ago
What is the best way to control expenses?
bagirrra123 [75]

Answer:

buying things that you really like

or setting and sticking to a budget

3 0
3 years ago
Read 2 more answers
A pyramid with a square base has a volume of 120 cubic meters and a height of 10 meters. what is a side length of the base?
tamaranim1 [39]
Volume of Square Based Pyramid = (1/3)*(Side Length of Base)^2 *(height)

the given information are:
Volume = 120
height = 10

plug this in and get:
120 = (1/3)*(side)^2 *(10)
12 = (1/3)*(side)^2    [divided both sides by 10]
36 = (side)^2           [multiplied both sides by 3]
(side) = 6             [square rooted both sides]

Therefore the Side Length of the Base is 6 meters.
4 0
4 years ago
Please help with this question.
Troyanec [42]

Answer: it is c

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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