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maksim [4K]
3 years ago
13

Find the values of x and y?

Mathematics
2 answers:
Andrew [12]3 years ago
5 0

Answer:

x=20, y=70

Step-by-step explanation:

∠40°+∠adjacent to it =180°

∠adjacent= 180-40=140°

we see that 2 of the sides of one of the small triangles are congruent so that triangle is isoscel so the base angles are congruent as well

because sum of angles in a triangle has to be 180,

140 +x+x=180 so x=20°

from the right triange we see thhat y +90+20 =180 because sum of angle in a triangle has to be 180 so y=70

lakkis [162]3 years ago
4 0

Answer:x=20 y=70

Step-by-step explanation:

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What does the graph of y = 4x + 3 look like?
nexus9112 [7]

Answer:

the graph should look like it.

7 0
4 years ago
4a. In a book store, for every 9 books sold, 13 magazines were sold. If they had a 572 sales, how many of the sales were for boo
topjm [15]

Answer:

234 books.

Step-by-step explanation:

You need to set up a proportion. Be careful to note what it looks like and the explanation that follows.

9 books            13 magazines

=======     =     ===========

x                        572 - x                Cross multiply

What you want is the number of book sales from the proportion.

However all you have is the ratio of books to magazines. So you have to set up the total sales to magazines, which is a bit awkward.  572 - x is the number of magazine sales.

9*(572 - x) = 13x                        Remove the  brackets on the left.

5148- 9x = 13x                           Add 9x to both sides.

5148 = 13x + 9x                         Transpose and add the right.

22x = 5148                                Divide by 22

x = 5148/22

x = 234                    

234 books were sold.

5 0
3 years ago
at its highest point, the elevation of a city is 5791 ft above sea level. At its lowest point, the elevation of another city is
Nat2105 [25]
5785 feet between the top and sea level hope this helps 
8 0
3 years ago
Vicky has 5 stickers.
Stella [2.4K]

Answer:

meghan has 30 stickers

Step-by-step explanation:

5x3=15 double is 30

8 0
3 years ago
Read 2 more answers
Help me please. <br>20+(-16)4
Sphinxa [80]
P.E.M.D.A.S
First , you multiply.

200+(-16)4
200+(-64)

Since they have different signs, you subtract and keep the sign of the greater absolute value.

200+(-64)=136
8 0
3 years ago
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