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Masja [62]
3 years ago
13

What is the solution to the linear equation?

Mathematics
2 answers:
GalinKa [24]3 years ago
8 0

Answer:

-10 -2d+7=8-10-3d

-2d + 7 =8 -3d

-2d + 7 =3d = 8

-2d + 3d = 8-7

d=8-7

d=1

Vadim26 [7]3 years ago
8 0

Answer:

d = 1

Step-by-step explanation:

<u>Step 1:  Combine like terms</u>

d - 10 - 2d + 7 = 8 + d - 10 - 3d

(d - 2d) + (-10 + 7) = (8 - 10) + (d - 3d)

(-d) + (-3) = (-2) + (-2d)

<u>Step 2:  Add 2d to both sides</u>

-d + 2d - 3 = -2 - 2d + 2d

d - 3 = -2

<u>Step 3:  Add 3 to both sides</u>

d - 3 + 3 = -2 + 3

d = 1

Answer:  d = 1

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one of the Interior angles of a triangle is equal to 30 degrees and one of the exterior angles is equal to 40 degrees find the r
Sonja [21]
If one of the exterior angles is 40, you can find its adjacent interior angle by subtracting 40 from 180. This is 40, so the triangle has 2 interior angles that are equal to 40. Now we have 2 of 3 interior angles. The sum of the measures of the interior angles of a triangle is 180, so we can set this equation up:

x + 40 + 40 = 180
x + 80 = 180
x = 100

So the triangle's angles have measures of 40,40 and 100 degrees.
6 0
3 years ago
Read 2 more answers
Points A, B, C, and D lie on the circle. Solve for the value of X
aliina [53]

Answer:

A 65

Step-by-step explanation:

The angle formed by two chords  is 1/2 the sum of intercepted arcs

x = 1/2 (51+79)

x = 1/2(130)

x =65

4 0
3 years ago
Read 2 more answers
URGENT NEED HELP CLICK TO SEE
Phantasy [73]

Answer:

D

Step-by-step explanation:

Can I have Brainliest? I hope this helped and have a nice day!!!

Work:

64 / 2 = 32

3/4 / 2 = 3/8

3/4 = 6/8

6/8 / 2 = 3/8

Final answer 32 3/8

3 0
3 years ago
A transformation T : (x, y) → (x + 3, y + 1). Find the preimage of the point (4, 3) under the given transformation. (7, 4) (1, 2
motikmotik

Answer:

(1, 2)

Step-by-step explanation:

Remember that the final shape and position of a figure after a transformation is called the image, and the original shape and position of the figure is the pre-image.

In our case, our figure is just a point. We know that after the transformation T : (x, y) → (x + 3, y + 1), our image has coordinates (4, 3).

The transformation rule T : (x, y) → (x + 3, y + 1) means that we add 3 to the x-coordinate and add 1 to the y-coordinate of our pre-image. Now to find the pre-image of our point, we just need to reverse those operations; in other words, we will subtract 3 from the x-coordinate and subtract 1 from the y-coordinate.

So, our rule to find the pre-image of the point (4, 3) is:

T : (x, y) → (x - 3, y - 1)

We know that the x-coordinate of our image is 4 and its y-coordinate is 3.

Replacing values:

                (4 - 3, 3 - 1)

                (1, 2)

We can conclude that our pre-image is the point (1, 2).

6 0
3 years ago
Please help.<br> A<br> B<br> C<br> D
s344n2d4d5 [400]

Answer:

A. t(x) = 450 - 0.06x

Step-by-step explanation:

The layer which is originally 450 m thick is decreasing by 0.06 m.

450 - 0.06

... per day. x represents days.

0.06x

So,

450 - 0.06x

6 0
3 years ago
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