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3 years ago

Solve the following problems.

Mathematics

1 answer:

Evgesh-ka [11]3 years ago

4 0

Answer:

(a) 38 inches (b) 374 inches (c) 3564 inches (d) 6273767 square inches

Step-by-step explanation:

a) 2 ft 5 inches + 9 inches

Convert to inches

1 feet = 12 inches

2 feet = 12 x 2 inches = 24 inches

24 inches + 5 inches + 9 inches = 38 inches

b) 4 yards 8 inches + 6 yards 6 inches

Convert to inches

1 yard = 36 inches

4 yards = 36 x 4 = 144 inches

144 inches + 8 inches = 152 inches

6 yards = 36 x 6 = 216 inches

216 inches + 6 inches = 222 inches

152 inches + 222 inches = 374 inches

c) 29 yard 2 feet 11 inches + 55 yard 1 feet 10 inches + 13 yard 1 feet 3 inches

Convert to inches

29 yard 2 feet 11 inches

1 yard = 36 inches

29 yards = 36 x 29 = 1044 inches

1 feet = 12 inches

2 feet = 12 x 2 = 24 inches

1044 + 24 + 11 = 1079 inches

55 yard 1 feet 10 inches

1 yard = 36 inches

55 yards = 26 x 55 = 1980 inches

1 feet = 12 inches

1980 + 12 + 10 = 2002 inches

13 yard 1 feet 3 inches

1 yard = 36 inches

13 yards = 13 x 36 = 468 inches

1 feet = 12 inches

468 + 12 + 3 = 483 inches

1079 + 2002 + 483 = 3564 inches

d) 4,839 sq yard 8 sq feet 139 sq inches + 7 sq feet 124 sq inches

Convert to square inches

4,839 sq yard 8 sq feet 139 sq inches

1 square yard = 1296 square inches

4839 x 1296 = 6271344 square inches

1 square feet = 144 square inches

8 x 144 = 1152

6271344 + 1152 = 6272635 square inches

7 sq feet 124 sq inches

7 x 144 = 1008

1008 + 124 = 1132 square inches

1132 + 6272635 = 6273767 square inches

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Karolina [17]

Answer: width:60.2 cm

Length: 64.2 cm

Step-by-step explanation:

Given

The area of the rectangle is $3990\ cm^2$

Width of the rectangle is $x\ cm$

Length of the rectangle is $x+4\ cm$

Area of the rectangle is the product of length and width

$\therefore 3990=(x+4)x\\\Rightarrow 3990=x^2+4x\\\Rightarrow x^2+4x-3990=0\\\Rightarrow x=60.198\ or\ -65.198\ cm\\\text{Neglecting negative term}\\\Rightarrow x=60.198\approx 60.2\ cm$

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Length of the rectangle is $60.2+4=64.2\ cm$

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3 years ago

Geometry question number 21

Pie

Step-by-step explanation:

1st) Distribute 8 with x and 8 with -1 which will give you

8x-8=5x-35

2nd) Use opposite operation and add 8 both sides

8x-8=5x-35

+8 +8

---------------

8x=5x-27

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8x=5x-27

-5x= -5x

_______

3x=-27

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3 years ago

Answer choice D.) is DE/DF Please help, serious answers

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Ef/df
is completely correct

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4 years ago

Resolva a seguinte equaçao -8x-13 = 3 por favor preciso da conta

CaHeK987 [17]

Hello,

Here is your answer:

The proper answer to this question is "x-=2".

-8x-13=3

Add 13 both sides:

13+3=16

Divide 8 on both sides:

16/8=2

X=2!

If you need anymore help feel free to ask me!

Hope this helps!

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3 years ago

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The trip was 6 hours long.

Step-by-step explanation:

Given,

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