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3 years ago

How do I find, x and y?

Mathematics

1 answer:

geniusboy [140]3 years ago

5 0

Since this is a quadrilateral, all angles together = 360°. The angle that is 128° is congruent to angle y, so y=128°. Angle x and y are supplementary, meaning together they equal 180°, or x+y=180°. So x=180°-y. Which means, x=180°-128°=52°.

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Which picture shows 2/4?

steposvetlana [31]

Answer:

d) last bottom picture

Step-by-step explanation:

This shape has 4 boxes and two are shaded. So, it means the fraction of 2/4. Hence, option (d) is the correct answer.

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2 years ago

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inna [77]

Answer:

explain

Step-by-step explanation:

3 0

3 years ago

How to write 21,400 in word form

liubo4ka [24]

Twenty-one thousand four hundred

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3 years ago

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5/3x−2y=−2 −x+y=2<br> What is the solution of the system of equations?

gtnhenbr [62]

Answer:

(x, y) = (-6, -4)

Step-by-step explanation:

The solution can be found quickly using a graphing calculator. It is the point of intersection of the two lines.

_____

If you like, you can solve the system algebraically. The second equation can be rewritten to give ...

y = x +2

Substituting this into the first equation gives ...

5/3x -2(x +2) = -2

-1/3x -4 = -2

Adding 4 and multiplying by -3 gives ...

x = -3(-2+4) = -6

Then our equation for y tells us ...

y = -6 +2 = -4

The solution is (x, y) = (-6, -4).

5 0

3 years ago

2. A poster is 15 cm taller than it is wide. It is mounted on a piece of cardboard so that there is a 10 cm border on all sides.

lilavasa [31]

Set up two equations
T = how tall
W = how wide.
T = W + 25 is the first equation
5
×
{
2
(
T
+
10
)
}
+
5
×
(
2
×
W
)
=
1350
This equation is the total height adding 5 for the top border and 5 for the bottom border. Then multiplying the total height by the width of the border 5, time 2 because there are two sides that are tall Then adding 5 times two widths.

4 0

3 years ago