MATHEMATICS MIDDLE SCHOOL

Find the value of x in the triangle, 60°, 60°, 5x

Answers

Answer 1

Answer:

The value of x in the expression for the angle of the triangle is 12.

What is the value of x in the triangle?

The figure in the image is a triangle.

From the image:

Angle 1 = 5x

Angle 2 = 60 degrees

Angle 3 = 60 degrees

Note that, the sum of the interior angle of a triangle equals 180 degrees.

To determine the value of x, add the 3 angles and equate to 180 degrees.

Hence:

5x + 60 + 60 = 180

Collect and add like terms:

5x + 120 = 180

Subtract 120 from both sides:
5x + 120 - 120 = 180 - 120

5x = 180 - 120

5x = 60

x = 60/5

x = 12

Therefore, x has a value of 12.

Learn more about sum of angles in a triangle here: brainly.com/question/10242960

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Answer 2

Answer: Triangles have well 3 angles, and they all add up to 180. So 180-60-60= 60. This means that 5x=60. So you divide by 5 on each side and get x=12.

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When adding or subtracting fractions with like denominators, the denominators will change.true or false

Answers

false because if you add your denominators your just going to get your answer wrong. Only your numerator should change. If you have unlike denominators then the denominators will change.

Answer:

False

Step-by-step explanation:

Each deli sandwich made uses 1/4 pound of roast beef. Marisa started with 5 pounds of roast beef and now has 3/4 pounds left.How many deli sandwiches did she make?

Answers

Let us assume the number of sandwiches made by Deli = x
Amount of roast beef required for making 1 sandwich = (1/4) pound
Total amount of beef that Marisa started with = 5 pounds
Amount of beef that was left = (3/4) pounds
Then
[(1/4) * x] + (3/4) = 5
(x/4) + (3/4) = 5
(x + 3)/4 = 5
x + 3 = 5 * 4
x + 3 = 20
x = 20 - 3
= 17
So we can see from the above deduction that 17 Deli sandwiches was made by Marisa. I hope the procedure is clear enough for you to understand.

How do you find the area of a square? No matter its height (length) or bass (width)? ; (

Answers

The general formula for working out the area of a square is:

$A (area) = w (width)$ × $h (height)$ .

Or, because a square has equal sides, you can just do:

$A = a^(2) (a = side)$ .

1. a researcher tagged 40 giant turtles in 2008. In 2009, she returned and captured 50 turtles, 16 of which were tagged. In 2010 she returned again and captured 30 turtles, 8 of which were tagged. A. Use a proportion to estimate the turtle population for 2009
B. Use a proportion to estimate the turtle population for 2010

Answers

Given:
2008 - 40 giant turtles tagged
2009 - 50 turtles capture where 16 were tagged
2010 - 30 turtles capture where 8 were tagged

2009:
40/x = 16/50
40*50 = 16x
2000 = 16x
2000/16 = x
125 = x

2010:
40/x = 8/30
40*30 = 8x
1200 = 8x
1200/8 = x
150 = x

132 is 80% of what number

Answers

165 is correct.
132 / 0.8 = 165

The answer is 165. Hope this helped :)

What is 4/5+11/12= ?

Answers

To add the denominators have to be the same so the common denominator is 60. So your answer is 4•12=48 and 11•5=55 so 48+55=106 and when you divide that by 60 you get 1.716

Answer:

4/5+11/12= 1 43/60

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