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2 years ago

How to find x and y, I very count used at this problem.

Mathematics

2 answers:

seropon [69]2 years ago

8 0

X=14, Y=75
(9x-1) and (5x-15) are supplementary angles.
So if you set up an equation, it looks like:

(9x-1)+(5x-15)=180. Simplify

14x-16=180

14x=196

X=14

(9x-1) and (y-20) are also supplementary angles. To solve for Y, we need to find (9x-1) first by plugging in x

(9(14)-1) =125

Now solve for Y

125+y-20=180

105+y=180

Y=75

Vinil7 [7]2 years ago

3 0

X is parallel and y is the opposite

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Answer:

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Step-by-step explanation:

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3 years ago

When 2(3/5 x + 2/3 y - 1/4 x -1 1/2 y + 3 )is simplified, what is the resulting expression?

vovangra [49]

Answer:

Simplifying the expression: $2(\frac{3}{5}x+\frac{2}{3}y-\frac{1}{4}x-1\frac{1}{2}y +3)$ we get $\mathbf{42x-100y-360}$

Step-by-step explanation:

We need to simplify the expression: $2(\frac{3}{5}x+\frac{2}{3}y-\frac{1}{4}x-1\frac{1}{2}y +3)$

First we will solve terms inside the bracket

$2(\frac{3}{5}x+\frac{2}{3}y-\frac{1}{4}x-1\frac{1}{2}y +3)$

Converting mixed fraction $1\frac{1}{2} y$ into improper fraction, we get: $\frac{3}{2}y$

Replacing the term:

$2(\frac{3}{5}x+\frac{2}{3}y-\frac{1}{4}x-\frac{3}{2}y +3)$

Now, taking LCM of: 5,3,4,2 we get 60

Now multiply 60 with each term inside the bracket

$2(\frac{3}{5}x\times60+\frac{2}{3}y\times60-\frac{1}{4}x\times60-\frac{3}{2}y\times60 +3\times60)\\2(3x\times12+2y\times20-1x\times15-3x\times30-3\times60)\\2(36x+40y-15x-90y-180)$

Now, combine like terms

$2(36x-15x-90y+40y-180)\\2(21x-50y-180)$

Now, multiply all terms with 2

$42x-100y-360$

So, Simplifying the expression: $2(\frac{3}{5}x+\frac{2}{3}y-\frac{1}{4}x-1\frac{1}{2}y +3)$ we get $\mathbf{42x-100y-360}$

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3 years ago

The price of a computer was decreased by 7% to £500. What was the price before the decrease? Give your answer to the nearest pen

inessss [21]

It’s 500.07
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2 years ago

Simplify the expression. (3x/y)^-3

AysviL [449]

Answer:

y^3/(27 x^3)

Step-by-step explanation:

Simplify the following:

((3 x)/y)^(-3)

((3 x)/y)^(-3) = (y/(3 x))^3:

(y/(3 x))^3

Multiply each exponent in y/(3 x) by 3:

(y^3)/((3 x)^3)

Multiply each exponent in 3 x by 3:

y^3/(3^3 x^3)

3^3 = 3×3^2:

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y^3/(3×9 x^3)

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3 years ago

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Anni [7]

Try to use the total which is 650 - 247
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2 years ago

Read 2 more answers