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Scilla [17]
3 years ago
11

3. Use inverse operations to solve the equation. (1 point) 15 = -1 6

Mathematics
1 answer:
Alex17521 [72]3 years ago
7 0

Answer:

Addition and subtraction are inverse operations, as are multiplication and division. To solve an equation means to isolate the unknown, x, on the left of the = sign.

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How to solve y=-4x step by step
snow_lady [41]

Answer:

Step-by-step explanation

 Slope = 8.000/2.000 = 4.000

 x-intercept = 0/-4 = -0.00000

 y-intercept = 0/1 = 0.00000

8 0
3 years ago
Solve for x : 2x−3 = 5
neonofarm [45]

Answer:

x=4

Step-by-step explanation:

2x-3=5

Add 3 to both sides

2x=8

divide both sides by 2

x=4

3 0
4 years ago
Read 2 more answers
Triangle m is similar to triangle n. Triangle m has two angles with measures of 32 degrees and 93 degrees. Which two angle measu
Ray Of Light [21]
We know that

If two triangles are similar the corresponding angles must be congruent.
therefore
triangle N must have an angle of 32° and 93°

the answer is
angle measure of 32° and angle measure of 93°
3 0
3 years ago
The perimeter of this triangle is 25 units. An angle bisector divides one side of the triangle into lengths of 2 and 3. Find the
grin007 [14]

Answer:

   8 and 12

Step-by-step explanation:

Sides on one side of the angle bisector are proportional to those on the other side. In the attached figure, that means

  AC/AB = CD/BD = 2/3

The perimeter is the sum of the side lengths, so is ...

  25 = AB + BC + AC

  25 = AB + 5 + (2/3)AB . . . . . . substituting AC = 2/3·AB. BC = 2+3 = 5.

  20 = 5/3·AB

  12 = AB

  AC = 2/3·12 = 8

_____

<em>Alternate solution</em>

The sum of ratio units is 2+3 = 5, so each one must stand for 25/5 = 5 units of length.

That is, the total of lengths on one side of the angle bisector (AC+CD) is 2·5 = 10 units, and the total of lengths on the other side (AB+BD) is 3·5 = 15 units. Since 2 of the 10 units are in the segment being divided (CD), the other 8 must be in that side of the triangle (AC).

Likewise, 3 of the 15 units are in the segment being divided (BD), so the other 12 units are in that side of the triangle (AB).

The remaining sides of the triangle are AB=12 and AC=8.

7 0
4 years ago
Solve the system by substitution.<br> y=2x<br> -3x + 8y =26
Anna [14]

Answer:

if y = 2x then

-3x+8y=26

-3x + 8·2x= 26

-3x+16x=26

13x=26

x = 26/13= 2

5 0
4 years ago
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