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4 years ago

HELP! Look at the figure, PQRS. Find the values of x and y. a) x = 5, y = 7 b)x = 6, y = 8 c)x = 6, y = 9 d)x = 7, y = 10

Mathematics

1 answer:

maks197457 [2]4 years ago

7 0

Answer:

c) x = 6, y = 9

Step-by-step explanation:

The figure is a parallelogram. The diagonals of a parallelogram bisect each other, so each part of a given diagonal is equal to the other part.

3x = 2y

2x = y+3

Solving the second equation for y, we have ...

y = 2x -3

Substituting into the first equation gives ...

3x = 2(2x -3)

3x = 4x -6 . . . . simplify

6 = x . . . . . . . . .add 6 -3x

y = 2(6) -3 = 9 . . . . use the above expression for y

The values of x and y are (x, y) = (6, 9).

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ANSWER FAST NO LINKS 23=x-13 9+x=14 12=x+8

Anna35 [415]

Answer:

23=x-13, x=36

9+x=14, x=5

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Step-by-step explanation:

23=x-13. You want to isolate x so you have to add 13 to both sides. x=23+13, x=36

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3 years ago

The selling price of the Robertsons family house dropped from $500,000 to $250,000. What was the percent decrease in the value o

Alexus [3.1K]

Answer:

50%

Step-by-step explanation:

You can literally do it mentally lol

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2 years ago

Read 2 more answers

A spring has natural length 24 cm. Compare the work W1 done in stretching the spring from 24 cm to 34 cm with the work W2 done i

Scilla [17]

Answer:

From the analysis W1=W2.

they are directly related

Step-by-step explanation:

the work-done in stretching a spring can be expressed as

$W=\frac{1}{2}kx^2$

where k= spring constant

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Hence for W1

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solving in terms of k we have

$W=\frac{1}{2}k*10^2\\\W=\frac{1}{2}k*100\\\W=50k$

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$W=\frac{1}{2}k*10^2\\\ W=\frac{1}{2}k*100\\\ W=50k$

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HELP! Look at the figure, PQRS. Find the values of ​x and y. a) x = 5, y = 7 b)x = 6, y = 8 c)x = 6, y = 9 d)x = 7, y = 10

HELP! Look at the figure, PQRS. Find the values of x and y. a) x = 5, y = 7 b)x = 6, y = 8 c)x = 6, y = 9 d)x = 7, y = 10