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Damm [24]
3 years ago
9

3x-7y=14

Mathematics
1 answer:
Mademuasel [1]3 years ago
4 0

Answer:

A. \frac{3}{7}

Step-by-step explanation:

The given equation is

3x-7y=14

We solve for y by  subtracting 3x from both sides to obtain;

-7y=14-3x

We now divide through by -7 to get;

y=\frac{-3}{-7}x+\frac{14}{-7}

This simplifies to;

y=\frac{3}{7}x-2

This equation is now in the form y=mx +c, where m=\frac{3}{7} is the slope.

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I need help on this last question
zzz [600]

Answer:

They are both correct but they rounded to different places. Scrooge rounded to the nearest whole number while Bon rounded to the nearest tenth.

Step-by-step explanation:

Scrooge rounded up to the next whole number which was three because the tenth place value was 5 or greater.

While Bob on the other hand rounded to the nearest tenth. Which resulted in the number going down because the number in the hundredth place value was less than 5.

8 0
2 years ago
Three times the sum of a number and seven is two less than five times the number.
m_a_m_a [10]
3 (x + 7) =  5x - 2
3x + 21 = 5x - 2
3x - 5x = -2 - 21

-2x = -23 
x = -23/-2
x = 23/2


4 0
3 years ago
Solve using substitution 7x-6y=-20<br> Y=1
maksim [4K]

Answer:

x = -2

Step-by-step explanation:

7x -6y = -20

y=1

7x - 6 = -20

7x = -14

x = -2

4 0
3 years ago
Solve the expressions when a = 9 and b = -3. Enter your answers in the boxes below.
lys-0071 [83]

Answer:

A.27

B.6

Step-by-step explanation:

A. -3(9)=27

B.9/-3+9=-3+9=6

Plug in what its says a and b is equal to

5 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
maxonik [38]

Answer:

1) shifts f(x) 4 units down  = g(x) = 2x-10

2) stretches by factor 4    =  g(x) = 8x-24

3) shifts f(x) 4 units right   =  g(x) = 2x-14

4) compresses by factor 4 =  g(x) = 8x-6

Step-by-step explanation:

1)<em> When we have to move the function down by 4 units, subtract the whole function by -4, that is y -4.</em>

Thus, f(x) becomes  g(x) = 2x-6-(4) = 2x-10

2) <em>When the function is stretched away from x axis, it means in Y direction.</em>

<em>  Thus, when stretched 4 units in Y direction, the function becomes 4(f(x))</em>

 =  g(x) = 4(2x-6) = 8x-24

3)<em>When we have to move the function right by 4 units, replace x with (x-4) in the function.</em>

Thus, f(x) becomes  g(x) = 2(x-4)-6 = 2x-8-6 = 2x-14

4) <em>When the function is stretched towards y axis, it means in X direction.</em>

<em>  Thus, when compressed 4 units in X direction, replace the x by 4x.</em>

 =  g(x) = 2(4x)-6 = 8x-6

3 0
3 years ago
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