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Anni [7]
3 years ago
6

5 + 4x - 2x = 8x + 11 + 12 Explain step by step PLEASE

Mathematics
2 answers:
mario62 [17]3 years ago
6 0
Simplify
5
+
4
x
−
2
x
5+4x−2x to
5
+
2
x
5+2x.
5
+
2
x
=
8
x
+
11
+
12
5+2x=8x+11+12

2 Simplify
8
x
+
11
+
12
8x+11+12 to
8
x
+
23
8x+23.
5
+
2
x
=
8
x
+
23
5+2x=8x+23

3 Subtract
5
5 from both sides.
2
x
=
8
x
+
23
−
5
2x=8x+23−5

4 Simplify
8
x
+
23
−
5
8x+23−5 to
8
x
+
18
8x+18.
2
x
=
8
x
+
18
2x=8x+18

5 Subtract
8
x
8x from both sides.
2
x
−
8
x
=
18
2x−8x=18

6 Simplify
2
x
−
8
x
2x−8x to
−
6
x
−6x.
−
6
x
=
18
−6x=18

7 Divide both sides by
−
6
−6.
x
=
−
18
6
x=−
6
18
​


8 Simplify
18
6
6
18
​
to
3
3.
x
=
−
3
x=−3
Yuliya22 [10]3 years ago
4 0

Answer:

The solution is x = -3

Step-by-step explanation: Please brainliest!

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Sati [7]

1 yd = 3 ft

y - the number of yards

y=3\cdot f\to y=3f

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Need help please <br> find the area of the shape below
Tanzania [10]

Answer:

198.5\ cm^2

Step-by-step explanation:

Break the figure in three parts as shown in the image I attached.

The figure makes 2 semi circles and 1 rectangle so,

Area of rectangle = Length x breadth

Area of rectangle = 12 x 10

Area of rectangle = 120

Now for the semi circles , we have 2 semi-circles which means area of both semi circles would be

Area of semi circle = \frac{1}{2} \pi r^2\\

so, Area of two semi circles would be = (\frac{1}{2} \pi r^2)2

so, Area of two semi circles would be = \pi r^2

now for the radius we know that,

Diameter = 2 x radius

D = 2r

and the diameter is 10cm so,

10 = 2r

10/2 = r

r = 5cm

so we put r = 5 in the formula ,

Area\ of\ two\ semi\ circles\ = \pi r^2\\Area\ of\ two\ semi\ circles\ =\pi (5)^2\\Area\ of\ two\ semi\ circles\ =25\pi \\Area\ of\ two\ semi\ circles\ =78.5\ cm^2

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8 0
3 years ago
Suppose that there are two types of tickets to a show: advance and same-day. The combined cost of one advance ticket and one sam
frosja888 [35]

Answer:

Advance tickets cost $30; same-day tickets cost $35.

Step-by-step explanation:

Let a = the cost of an advance ticket

and s = the cost of a same-day ticket

We have two conditions:

                                                         (1)                  a + s = 65

                                                         (2)        15a + 20s = 1150

Subtract a from each side of  (1)     (3)                       s = 65 - a

Substitute (3) into (2)                         15a + 20(65 - a) = 1150  

Distribute the 20                             15a + 1300 - 20a  = 1150

Combine like terms                                     1300 - 5a = 1150

Subtract 1300 from each side                               -5a = -150

Divide each side by -5                    (4)                     a = 30

Substitute (4) into (1)                                          30 + s = 65

Subtract 30 from each side                                     s = 35

Advance tickets cost $30; same-day tickets cost $35.

Check:

(1) 30 + 35 = 65     (2) 15 × 30 + 20 × 35 = 1150

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7 0
3 years ago
Two classmates, Annie and Whitney, plan to meet in the computer lab to type up their research papers. Annie can type at a speed
madam [21]

The page count will be 10 when the two students will reach the same count.

Step-by-step explanation:

Given,

Typing speed of Annie = 3 pages per hour

Pages already typed by Annie = 4

Let,

x be the number of hours.

y be the total pages typed.

y = 3x+4     Eqn 1

Typing speed of Whitney = 1 page per hour

Pages already types by Whitney = 8

y = 1x+8    Eqn 2

For same number of pages;

Eqn 1 = Eqn 2

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Dividing both sides by 2

\frac{2x}{2}=\frac{4}{2}\\x=2

Putting x=2 in Eqn 1

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Putting x=2 in Eqn 2

y=2+8\\y=10

The page count will be 10 when the two students will reach the same count.

Keywords: linear equation, addition

Learn more about linear equations at:

  • brainly.com/question/11018983
  • brainly.com/question/11145277

#LearnwithBrainly

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4 years ago
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Pavlova-9 [17]
Well, divide the 12 meters in even parts of 3/4
or, how many times does 3/4 go into 12?

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5 0
3 years ago
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