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inn [45]
2 years ago
13

Example 5

Mathematics
1 answer:
Svetllana [295]2 years ago
3 0

Answer:

1/2*6(12+x)=12*x

1/2*(72+6)=12x

36+3x=12x

36=9x

4=x

Step-by-step explanation:

Check that x=4

1/2*6(4+12)=12*4

1/2*(24+72)=48

1/2(96)=48

48=48

So x=4 is the correct answer

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The problem requires us to find the rate or speed of Lilli in miles per hour. Therefore, we just have to divide the given data.

12/110 = 0.10909.... Therefore, Lilli's speed or rate is 0.11 mi/hr.
5 0
3 years ago
2x + 19 and x + 23 are alternate exterior angles. What is the value of x? *
Mamont248 [21]

Answer:

4

Step-by-step explanation:

2x+19=x+23

We simplify the equation to the form, which is simple to understand

2x+19=x+23

We move all terms containing x to the left and all other terms to the right.

+2x-1x=+23-19

We simplify the left and right sides of the equation.

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5 0
3 years ago
Find the value of each measure.
zloy xaker [14]

The two congruent base angles tell us that this is an isosceles triangle, meaning the triangle has two congruent sides. Therefore, we can set these two expressions equal to each other and solve from there.

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7 = 8x - 17

8x = 24

x = 3

Side = 15(3) + 7 = 45 + 7 = 52

Hope this helps!

4 0
3 years ago
How many lines of symmetry does a regular polygon with 32 sides have
Leya [2.2K]
32. 16 through opposite vertices and 16 through the centres of opposite sides 
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3 years ago
WILL GIVE BRAINLIEST!!!!!!! Kate has 4 feet of rope. She cuts the rope into pieces that are each
Delvig [45]
<h2>Answer:</h2>

7

<h2>Step-by-step explanation:</h2>

4 1/5 ÷ 3/5 = 7

Kate cut 7 pieces of rope.

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