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krok68 [10]
3 years ago
10

What is 20% of 30% of 40% of $50

Mathematics
1 answer:
GarryVolchara [31]3 years ago
6 0

20% of $50 = $10

30% of $50 = $15

40% of $50 = $20

Multiply 20% by $50

30% by $50

40% by %50

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PLISS ANSWER :C DONT ANSWER IF YDK THAnKSSS<br> *also pls look at both images :)*
Iteru [2.4K]

Answer:

First image: (6, -1)

2nd image: y = 63

Explanation:

1)

2x + y = 11

1/2x - 5y = 8

y = -2x + 11

1/2x - 5(-2x + 11) = 8

1/2x + 10x - 55 = 8

10.5x - 55 = 8

10.5x = 63

x = 6

2x + y = 11

2(6) + y = 11

12 + y = 11

y = -1

(x , y) = (6, -1)

2)

1/4(8y - 4.8) = 2 (0.9y + 5.4) + 3/5

2y - 1.2 = 1.8y + 10.8 + 0.6

0.2y - 1.2 = 11.4

0.2y = 12.6

y = 63

7 0
3 years ago
Find the value of x.
vredina [299]

Answer:

77

Step-by-step explanation:

a tirangle has 180 degrees so 180-53-50=77

and x value is 77, that is easy.

3 0
3 years ago
Help asap-3(1+6j)=14-j
Elina [12.6K]

Answer:

J= -1

Step-by-step explanation:

5 0
2 years ago
The central angle of a regular polygon is 18 degrees. Th e perimeter of the polygon is 144 ft. What is the area of the polygon t
Diano4ka-milaya [45]
Given that the central angle of a polygon is 18, then the number of sides of the polygon will be:
360/18
=20 sides
thus the side length will be:
144/20
=7.2 ft
hence the area will b given by:
p=s×n
a=s/[2tan(180)/n]
where:
Area=(a×p)/2
p=perimeter, s=side length, n=number of sides
p=7.2×20=144
a=7.2/[2tan (180/20)]=22.73
thus
A=(144×22.73)/2
A=1632.524 ft²
7 0
3 years ago
What is the solution for the system of equations {2x-3y-2z=-7, x-3y-3z=4, x-2y-z=-3
Sergeeva-Olga [200]
A suitable matrix calculation tells you (x, y, z) = (-8, -1, -3).

7 0
3 years ago
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