(12a + 8) + (4a + 3) + (5 + a) =

Mathematics

1 answer:

PSYCHO15rus [73]3 years ago

3 0

Answer:

17a + 16 =

Step-by-step explanation:

Add all a's

then all numbers w/o letters

you cannot add them together bc it would be like adding apples to carrots (thats what my teacher said)

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Paying yourself first is done by

Strike441 [17]

A would be the correct answer.

5 0

3 years ago

Solve each system by graphing: 4x + 6y = -12 2x + 3y = 6

Helga [31]

Answer: For the system given, there is no solution.

The slopes are the same for both equations, so the lines are parallel. With no intersection, there is no solution.

It may be easier to graph the system if you change the equations to slope intercept form y = mx + b

That locates the y-intercept, b and you can use the slope, m to plot additional points to draw the lines.

The attachment shows the graph of this system of equations.

Step-by-step explanation: Isolate y on the left

First equation:

4x + 6y = -12 Subtract 4x from both sides

6y = -4x -12 Divide both sides by 6

y = -4x/6 -12/6 Simplify

y = -2x/3 - 2 The y-intercept is -2, the slope is -2/3

Second equation:

2x + 3y = 6 Subtract 2x from both sides

3y = –2x + 6 . Divide both sides by 3

y = –2x/3 + 6/3 Simplify

y = –2x/3 +2 The y-intercept is -2, the slope is -2/3

At this point we see that the slopes are the same, so the lines are parallel.

6 0

3 years ago

Read 2 more answers

Help ME!!!! where could you insert parentheses in 310-20/2x5+13 so that the answer would be 130?

tatiyna

310-20(2x5)+13 I think

7 0

3 years ago

66.

Naddik [55]

Answer: 530.66 units²

Step-by-step explanation:

$Area_{(circle)}=\pi r^2\qquad and\qquad r=\dfrac{diameter}{2}\\\\\\\implies Area_{(circle)}=\pi \bigg(\dfrac{diameter}{2}\bigg)^2\\\\\\\text{It is given that the diameter = 26:}\\A=\pi\bigg(\dfrac{26}{2}\bigg)^2\\\\\\.\quad =\pi \cdot 13^2\\\\\\.\quad =169\pi\\\\\\.\quad =\large\boxed{530.66}$