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Yuri [45]
4 years ago
9

Ivan saves 20% of his monthly music equipment he earned $335 last month. How much did he save for music equipment? If he uses $2

0.10 of what he earned to buy sheet music what percent of his earnings is this amount?
Mathematics
2 answers:
V125BC [204]4 years ago
8 0
200/100=20.10/335

This is the work. It is a ratio
alekssr [168]4 years ago
5 0
20/100=20.10/335     is the Ratio
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Polygon ABCD has the following vertices: A(-4,2) , B(3,2) , C(3,-5) , and D (-4, -2) Calculate the area of the polygon
Lynna [10]

Check the picture below.

\bf \textit{area of a trapezoid}\\\\A=\cfrac{h(a+b)}{2}~~\begin{cases}a,b=\stackrel{bases}{parallel}\\\qquad ~sides\\h=height\\\cline{1-1}a=4\\b=7\\h=7\end{cases}\implies A=\cfrac{7(4+7)}{2}\implies A=\cfrac{7(11)}{2}\\\\\\A=\cfrac{77}{2}\implies A=38\frac{1}{2}

4 0
3 years ago
Write three other expressions that are equivalent to 8x-12.
Pani-rosa [81]
  Three other expressions that are equivalent to : 8 x - 12
   1 ) 4 ( x - 3 )
   2 ) 10 x - 2 x - 12
   3 ) 8 x - 4 - 8
7 0
4 years ago
Read 2 more answers
Can someone help me with this please?
irakobra [83]

Answer:

b. 28.1

Step-by-step explanation:

By the property of intersecting secant and tangent out side of the circle.

20 \times (20 + x) =  {31}^{2}  \\ 20(20 + x) = 961 \\ 20 + x =  \frac{961}{20}  \\ 20 + x = 48.05 \\ x = 48.05 - 20 \\ x = 28.05 \\ \huge \red{ \boxed{ x = 28.1}}

3 0
4 years ago
A square tile has an area of 324 square inches. what is the perimeter of the square tile in inches?
kotykmax [81]

The formula of an area of a square: A=a^2


a - side


We have: A=324\ in^2


substitute:


a^2=324\to a=\sqrt{324} \to a=18\ in


The fromula of a perimeter of a square is: P=4a


substitute:


P=4\cdot18=72\ in^2

7 0
3 years ago
lina is covering a wall in her attic with wallpaper. The wall is trapezoid-shaped with top and bottom bases of 14 feet and 20 fe
eduard
136ft2 I did the work but I don't know if I understood the question correctly but maybe it is right lol
8 0
4 years ago
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