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Advocard [28]
3 years ago
10

This is an easy question that I just read, shouldn't be too hard onece you write it down, it only requires about 7 steps (2 are

simpliciations)
if
\frac{x+3y}{x} =7

find what the value of \frac{x}{y} is

show all work

Mathematics
2 answers:
sergij07 [2.7K]3 years ago
8 0
I hope this helps you

kvv77 [185]3 years ago
5 0
\dfrac{x+3y}{x} = 7 =\ \textgreater \  \text{Equation} 

1+ \dfrac{3y}{x}= 7 

          \text{Subtract 1 from both sides} 

\dfrac{3y}{x}=7-1 

\dfrac{3y}{x}=6 

          \text{Multiply both sides by x} 

3y=6x 

          \text{Divide both sides by 6} 

\dfrac{3y}{6}=x 

x= \dfrac{y}{2}
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Calculate the area of a circle with the radius of 2cm. Pie=3
Fofino [41]

Answer:

12

Step-by-step explanation:

The formula to find the area of a circle is:

\pir^{2}

Where "r" is the radius of the circle.

In this case, the radius is 2, and as per what is given in this problem (what the problem asks one to use), pi is rounded down to 3.

The equation will be:

3 * 2^2

Simplify, remember the order of operations:

3 * 4

12

6 0
3 years ago
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the value of an investment decreased by 10%. The original amount of the investment was $75 what is the current value of the inve
pishuonlain [190]

Answer:

67.5

Step-by-step explanation:

6 0
2 years ago
.Find the vertex, zero(s), and y-intercept of the graph of y = x2 + 4x – 5.
scZoUnD [109]

Answer:

Vertex (-2,-9)

zeros: x=1, x=-5

y-intercept: -5

Step-by-step explanation:

When you graph the quadratic equation you obtain the parabola shown in the figure attached.

Find the vertex of the parabola observing the graph, you can that the minimum point of the parabola is at (-2,-9) this is the vertex.

The zeros are the x-intercepts:

x=1; x=-5

And the y-intecept is when x=0 and the parabola cut the y-axis. This is: -5.

8 0
3 years ago
Read 2 more answers
-10(10x-12)=-9(-9x-2)-5
Viefleur [7K]

10(10x−12)=−9(−9x−2)−5
Step 1: Simplify both sides of the equation.
−10(10x−12)=−9(−9x−2)−5
(−10)(10x)+(−10)(−12)=(−9)(−9x)+(−9)(−2)+−5(Distribute)
−100x+120=81x+18+−5
−100x+120=(81x)+(18+−5)(Combine Like Terms)
−100x+120=81x+13
−100x+120=81x+13
Step 2: Subtract 81x from both sides.
−100x+120−81x=81x+13−81x
−181x+120=13
Step 3: Subtract 120 from both sides.
−181x+120−120=13−120
−181x=−107
Step 4: Divide both sides by -181.
−181x
−181
=
−107
−181
x=
107
181
Answer:
x=
107
181

7 0
3 years ago
Read 2 more answers
Select the correct answer.
kipiarov [429]

Answer:

A

Step-by-step explanation:

v - 2u

= < - 2, 4 > - 2 < 2.5, - 4 > ← multiply each component by 2

= < - 2, 4 > - < 5, - 8 > ← subtract corresponding components

= < - 2 - 5, 4 + 8 > = < - 7, 12 >

Graph A shows the resulting vector

8 0
3 years ago
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