1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
weqwewe [10]
3 years ago
6

Which value of x satisfies both -9x + 4y = 8 and -3x − y = 4 given the same value of y?

Mathematics
1 answer:
jeka943 years ago
5 0
Hello there,

The correct answer is C

Here's why,
-9(-8/7)+4y=8 is -4/7

and

-3(-8/7)-y=4 is -4/7

Hope this helps!
You might be interested in
a spherical balloon is deflated at a rate of 256pi/3 cm^3/sec. at what rate is the radius of the balloon changing when the radiu
Hunter-Best [27]
What you need to look for is \frac { dr }{ dt } when r=8.

Now:

Volume\quad of\quad a\quad sphere:\\ \\ V=\frac { 4 }{ 3 } \pi { r }^{ 3 }

\therefore \quad \frac { dV }{ dr } =\frac { 4 }{ 3 } \pi \cdot 3{ r }^{ 2 }=4\pi { r }^{ 2 }\\ \\ \therefore \quad \frac { dr }{ dV } =\frac { 1 }{ \frac { dV }{ dr }  } =\frac { 1 }{ 4\pi { r }^{ 2 } }

And:\\ \\ \frac { dV }{ dt } =-\frac { 256\pi  }{ 3 } \\ \\ Therefore:\\ \\ \frac { dr }{ dt } =\frac { dr }{ dV } \cdot \frac { dV }{ dt }

\\ \\ =\frac { 1 }{ 4\pi { r }^{ 2 } } \cdot -\frac { 256\pi  }{ 3 } \\ \\ =-\frac { 256 }{ 12 } \cdot \frac { \pi  }{ \pi  } \cdot \frac { 1 }{ { r }^{ 2 } }

\\ \\ =-\frac { 64 }{ 3{ r }^{ 2 } } \\ \\ When\quad r=8,\\ \\ \frac { dr }{ dt } =-\frac { 64 }{ 3\cdot { 8 }^{ 2 } } =-\frac { 1 }{ 3 } \\ \\ Answer:\quad -\frac { 1 }{ 3 } \quad cm/sec
3 0
4 years ago
What is the volume of this rectangular prism if the side of each square is 1 cm?
aliina [53]
Your answer is B because it’s 6 times 3 times 4 and you add cubic because it’s volume.
7 0
3 years ago
Mr.gilliam is 3 years younger than his wife.the sum of their ages is 95.how old is mr.gilliam
Usimov [2.4K]
X = the age of Mr. Gilliam
His wife is 3 years older, so the age of Mr. Gilliam's wife = x+3
The sum of their ages is 95.

x+x+3=95 \\
2x+3=95 \\
2x=95-3 \\
2x=92 \\
x=46

Mr. Gilliam is 46 years old.
3 0
3 years ago
Read 2 more answers
Help with this plz on finding x
ratelena [41]
M<3 = m<5
10x = 12x - 25
2x = 25
x = 12.5

answer is A. first choice
3 0
3 years ago
Which scenario can the following graph describe? A)the total time a kite is up in the air as it goes up for a little bit ,comes
Vadim26 [7]

Answer:

Option C is the correct answer.

Step-by-step explanation:

We are given,

<em>A graph where the function first increases and then decreases to touch the x-axis and the increases.</em>

It is required to find the corresponding situations.

So, from the options we have that,

The graph represents the speed of a vehicle which first increases (as it accelerates), then decreases (slows down) and then touch the x-axis (stops at the light) and then increases (accelerates on the ramp for a freeway).

Hence, option C is scenario that the graph describes.

4 0
3 years ago
Other questions:
  • How many distinct triangles can be formed for which m∠E = 64°, g = 9, and e = 10?
    6·2 answers
  • S=5r^2t solve for T please
    12·2 answers
  • The ratio of similarity between two figures is 4/3.If one side of the largerfigure is 12 cm long,what is the lengthof correspond
    8·2 answers
  • HELP HELP PLEASE!!!!<br> Will give what ever u want
    13·1 answer
  • Simplify the expression x2tx-x-5-xt7
    14·1 answer
  • F(x )= ?
    15·1 answer
  • Use the information below to complete the problem: p(x) = (1)/(x + 1)
    7·1 answer
  • A standard six-sided number cube is rolled and a coin is tossed. What is the probability that the cube shows a 3 or 4 and the co
    9·1 answer
  • The line represented by y = 3x − 2 and a line perpendicular to it intersect at R(3, 7). What is the equation of the perpendicula
    11·1 answer
  • Which of the following is the most accurate statement about Spatial Relations?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!