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Yuliya22 [10]
3 years ago
7

Find the value of x and yPlease help me. Thank you​

Mathematics
1 answer:
STatiana [176]3 years ago
5 0

Answer:

Step-by-step explanation:

let each angle=A

A+A+A=180

3A=180

A=180/3=60°

as the angles are equal so sides are equal.

16+y=46

y=46-16=30

applying sine formula

\frac{30}{sin z} =\frac{46}{sin~80} \\sin~z=\frac{30}{46} \times ~sin~80=\frac{15}{23} \times sin ~80\\z=sin^{-1}( \frac{15}{23} \times sin ~80) \approx~39.96^\circ \approx40^\circ

z+x=60

40+x=60

x=60-40=20°

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A computer was on sale for 2/3 of the original price.If the original price was 900 dollars what was the sale price
Alexxx [7]

Answer: The sale price is $600.

Explanation:

Since we have given that

The original price of a computer = 900 dollars

According to question, we have given that the sale price was   \frac{2}{3}  of the original price,

So,

Sale price is given by

\frac{2}3}\times 900\\\\=2\times 300\\\\=\$600

Hence, the sale price is $600.

6 0
3 years ago
I need help on this asap thanks
lina2011 [118]
1st find the averages of each one:

Elizabeth average of reading in min =(18+36+15+45+88+57+12)/7 =38.71 min

Sam average of reading in min =(17+52+48+35+13+71+16)/7 =36 min


question:

1) No
2) YES. [the range is te difference between the largest & the smallest)
Eliz Range = 88-12 =76 & Sam's= 71-13 = 58

3) NO. Sam 71 min & Eliz 88 min

4) YES. Median Eliz =45 min. Median Sam =35 min
4 0
3 years ago
the same cafe uses 18.5 cups of flour to make 100 servings of pancakes.how many cups of flour are in one serving of pancakes?
Fiesta28 [93]
Answer=0.185 cups
  18.5         x
______=_____
  100          1

cross multiply
100x=18.5
divide both sides by 100
x=0.185cups
7 0
3 years ago
Write an<br> equation of the line that passes through each pair of points.<br> (-3,9), (-3,-5)
fgiga [73]

Answer:

since slope(m) = y2 -y1/x2- x1

-5 - 9/ -3 - (-3)= -14/0

m = -14/0 (undefined)

using the formula

y-y1 = m(x -x1)

y - 9 = -14/0(x - (-3)

y-9 = -14/0(x + 3)

0 = -14( x+3). (cross multiplication)

0 = -14x - 42

14x = -42

x = -3( equation of the line)

7 0
2 years ago
Find the product.<br><br> (n 3)2 · (n 5)4
Aneli [31]
<span><span><span><span><span>n<span>(3)</span></span><span>(2)</span></span>n</span><span>(5)</span></span><span>(4)

</span></span><span>=<span><span><span><span><span>n*3</span>*2</span>*n</span>*5</span>*4

</span></span><span>=<span>120*<span>n2

</span></span></span><span>=<span>120<span>n<span>2</span></span></span></span>
6 0
3 years ago
Read 2 more answers
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