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BARSIC [14]
4 years ago
6

BRAINLIEST!!!! HELP!!! 30 POINTS!! (10 points each)

Mathematics
1 answer:
svet-max [94.6K]4 years ago
4 0

Answer:

hope you understand. all the answers included.

18. 67°

19. 133°

20. 28.972 units. ( I'm not that confident with the answer)

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The price of a stock went from $100 to $99.80. What was the percentage of decrease?
Brums [2.3K]
.20 is the correct answer because 100-99.80
3 0
3 years ago
Write the number, 81.402 in expanded form using powers of ten.
stich3 [128]

Answer:

the answer is 81.402 in expanded form using the powers of ten = (8 x 10^1) + (1 x 10^0) + (4/10^1) + (0/10^2) + (2/10^3)

Step-by-step explanation:

5 0
3 years ago
A penguin walks 10 feet in 6 seconds at this speed how far does the penguin walk in 45 seconds
Bogdan [553]

Answer: 75 ft

Step-by-step explanation:

45x10 = 450

450/6=75

7 0
2 years ago
Read 2 more answers
another rectangle has length and width in the ratio of 3:2. If the length is increased by eight and the width is increased by 50
Andreyy89

Answer:

Area of the new rectangle  = 148.8 cm square

Step-by-step explanation:

Let x be the dimensions of the rectangle then the

Perimeter of the Original rectangle= 2(L+B)

                                                   = 2 ( 3x+2x) = 2(5x)= 10xcm

If the length is increased by eight the new length would be 3x+ 8

and width would be 2x+x= 3x after 50 % increase

Perimeter of the new rectangle= 2(L+B)

                                                     = 2 ( 3x+8 +3x)

                                                       = 2 (6x+8)

                                                       = 12x + 16

Ratio of the new perimeter to the original perimeter is

             New perimeter :   Original perimeter

                8                      : 5

           12x+ 16                   : 10x cm

80x= 60x + 16

20x= 16

x= 16/20= 4/5

Putting the value of length and breadth in place of x

Area of the new rectangle = L*B =  3 * (4/5) +8 *3(4/5)=

                                                                 = 12+ 40/5 * 12/5

                                                                   = 62/5* 12/5

                                                                     = 744/5

                                                                   = 148.8 cm square

8 0
4 years ago
Can smbody help me out?
Alex777 [14]

Answer:

C.  30(-2)= -60 is the correct answer

Step-by-step explanation:

3 0
3 years ago
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