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Rasek [7]
3 years ago
14

X+78=3x-2 ..................

Mathematics
1 answer:
photoshop1234 [79]3 years ago
6 0

Answer:

x=40

Step-by-step explanation:

x+78=3x-2\\\mathrm{Subtract\:}78\mathrm{\:from\:both\:sides}\\x+78-78=3x-2-78\\x=3x-80\\\mathrm{Subtract\:}3x\mathrm{\:from\:both\:sides}\\x-3x=3x-80-3x\\\\

-2x=-80\\\frac{-2x}{-2}=\frac{-80}{-2}\\x=40

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The correct answer is C
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3 years ago
96 sq meters
Vsevolod [243]

Answer:

84 sq meters

Step-by-step explanation:

1. Approach

In order to solve this problem, one will have to divide the figure up into simple shapes. A picture is attached showing how the shape is divided up for this answer. Find the area of each region, then add up the results to find the total area.

2. Area of Region 1

As one can see, the length of (Region 1), as given is (6), the width is (3). To find the area multiply the length by the width.

Length * width

6 * 3

= 18

3. Area of Region 2

In (Region 2), the length is given, (12). However, one must find the width, this would be the size of the total side, minus the width of (Region 1). Multiply the length by the side to find the area.

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= 12 * 5

= 60

4. Area of Region 3

In (Region 3), the length of the figure is (2), the width is (3). To find the area, multiply the length by the width.

Length * width

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(Region 1) + (Region 2) + ( Region 3)

= 18 + 60 + 6

= 84

7 0
3 years ago
There is 2 and 3/4 punds of roast beef and 1 and 7/8 pounds of turkey and 2 1/16 pounds of salami if you must put 1/4 of pound o
rosijanka [135]
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2 1/16 pounds of salami     2 1/16      33/16 <span>salami

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</span>
 33/16 salami divided <span> 1/4  = 33/16 x 4 = 33/ 4 = 8 sandwiches</span>
8 0
3 years ago
Find the diagonal length of a rectangular TV screen with the a length of 25 inches and a width of 28 inches.
Luba_88 [7]

Answer:

37.5 inches

Step-by-step explanation:

Applying the Pythagorean Theorem,

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torisob [31]

Answer:

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Step-by-step explanation:

8 0
3 years ago
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