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3 years ago

What is the answer to 7x+5y=-66

Mathematics

2 answers:

OverLord2011 [107]3 years ago

6 0

Since this does not have two equations, many answers are acceptable.

One of these is x = -8, y = -2.

sergejj [24]3 years ago

4 0

Answer:

The answer will be x = - 66/7 - 5y/7

Step-by-step explanation:

I'm not sure what the context of the problem is, however just shoot me another question if this seems incorrect.

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PLZZZ HELP!!! VERY CONFUSED!!! Will give brainliest!!!!

777dan777 [17]

By the intersecting chords theorem, you have

$7\cdot4=5\cdot x\implies 5x=28\implies\boxed{x=\dfrac{28}5}$

7 0

3 years ago

The volume of a gas in cubic centimeters v,varies inversely with the pressure of the gas in liters per square centimeters,p when

scoundrel [369]

Answer:

The volume of the gas is $145.45\ cm^{3}$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form $y*x=k$ or $y=k/x$

Let

v------> the volume of a gas in cubic centimeters

p-----> the pressure of the gas in liters per square centimeters

$p*v=k$

we have

$v=16\ cm^{3}, p=20\ l/cm^{2}$

substitute and solve for k

$k=16*20=320$

The equation is $p*v=320$

<em>Find the volume of the gas when the pressure is 2.2 L/cm2</em>

For $p=2.2\ l/cm^{2}$ Find the value of v

substitute in the equation

$(2.2)*v=320$

$v=320/2.2=145.45\ cm^{3}$

8 0

3 years ago

Y'all I'm in 7th grade and I'm 12 I need help on this exam the question is: A jar contains 5 red marbles, 3 green marbles, and 4

klasskru [66]

Answer:

Im in 7th grade and im in 12 too :) I turn 13 in June 21st

Step-by-step explanation:

The answer is 1/12. 5+3+4=12 So 1/12 propabilty.

P.S. My favorite color is red

If this was helpful, please mark it as brainliest! :D

8 0

2 years ago

Read 2 more answers

Pls help me answer this :'( !!

alekssr [168]

Answer:

28 inches

Step-by-step explanation:

28×22/7×28

answer will come

7 0

3 years ago

Read 2 more answers

11/28+4/7 = simplest form

MatroZZZ [7]

The answer to this question is 27/28

4 0

3 years ago

What is the answer to 7x+5y=-66​

What is the answer to 7x+5y=-66