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vampirchik [111]
4 years ago
6

The difference of two numbers is 8. the larger number is three more then twice the second number. Find the numbers

Mathematics
1 answer:
otez555 [7]4 years ago
3 0

Answer:

5 and 13

Step-by-step explanation:

1) If we call the larger number x and the smaller y we can write two equations.

y= x - 8 and x - 3=2y

2) we can substitute the x-8 in for the y in the second equation.

x-3=2(x-8)

3) by distributing and simplifying we find that x=13

4) To find y we need to plug x back into the first equation.

y=13-8

y=5

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Please help<br> Value of x<br> and what are angles m thank you!
Usimov [2.4K]

To find the value of x, you want to use the vertical angles theorem.

The vertical angles theorem says that all vertical angles (which is what TRY and QRW are) are congruent to each other. Knowing this you can make an equation where the angles are equal to each other to find the value of x.

TRY = QRW, so:

(x+16) = (4x-5)

1. Add 5 to both sides.

(x+21) = (4x)

2. You can get rid of the parentheses.

x+21 = 4x

3. Subtract x from both sides.

21 = 3x

4. Divide both sides by 3, isolating x.

7 = x

5. Flip this equation around, so:

x = 7

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To find the measure of TRY then plug x into the expression for TRY, which is (x+16).

TRY => ((7)+16) = 23

Since TRY is 23, the vertical angles theorem says that QRW is also 23. Add these measures up.

23+23 = 46

A line's measure is 180 degrees, so two lines would add up to 360 degrees. Subtract 46 from 360 to find the remaining degrees.

360-46 = 314

TRQ and YRW must be congruent to each other so that means you can divide 314 by 2.

314/2 = 157

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Answers are:

TRY = 23

TRQ = 157

5 0
3 years ago
How many different two-digit numbers can be formed using the digits 1, 3, 4, and 5. Repetition of digits is allowed.
kipiarov [429]
13,14,15,31,34,35,41,43,45,51,53,54 so 12
7 0
3 years ago
Read 2 more answers
Help me out Whts 4+2y=16
Triss [41]

Answer:

y=6

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
3. Every morning, Matthew fills his dog’s water dish with 16 oz of water. If his dog
VikaD [51]
His dog will drink 112oz a week
It is 14 cups
It is 5.81 pints
It is 3.5 quarts
6 0
2 years ago
Solve for x in the diagram below.
gogolik [260]

Answer:

x = 9

Step-by-step explanation:

The parallel lines divide the sides of the triangle in proportion, that is

\frac{20-8}{x} = \frac{8}{6}

\frac{12}{x} = \frac{8}{6} ( cross- multiply )

8x = 72 ( divide both sides by 8 )

x = 9

3 0
3 years ago
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