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fgiga [73]
3 years ago
5

*EASY 7TH GRADE MATH*

Mathematics
1 answer:
lora16 [44]3 years ago
4 0

Answer:

2880

Step-by-step explanation:

The base is made up of two triangles and a square, if that makes sense. Finding the area of a triangle is (base x height)/2.  

The base of the tiny triangle is 4 because there is 8 inches extra to the 10 inch square. <u>10 x 4 = 40.</u>

Now we have a 10 by 10 square: <u>10 x 10 = 100. </u>

So, the area of the trapezoid is 140. There are two trapezoids in this prism, so both bases are 280.

The surface area of the sides are solved by <u>12 x 50 = 600. </u>Together, the sides equal 1200.

The top is solved by <u>10 x 50 = 500.</u>

The bottom is solved by <u>18 x 50 = 900.</u>

Add them all together: 280 + 1200 + 500 + 900 = 2,880

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30<br> Solve by elimination:<br> 2x - 3y = -6<br> -2x - 2y = 26 ,
Arturiano [62]

Answer:

x=-9,y=-4

Step-by-step explanation:

2x-3y=-6...(1)

-2x-2y=26...(2)

To solve we will have to eliminate one of the given variables, the variable to be eliminated is x

And it can be done by adding up (1) and (2)

It gives

-5y=20

Divide both sides by-5

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Then substitute the value of y into (1)

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Substrate 12 from both sides

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Divide both sides by 2

x=-9

Therefore x gives -9 and y gives-4

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3 years ago
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5 0
2 years ago
Find the volume please and Katie, why are you deleting my questions?
Rina8888 [55]

Volume of the prism = 75 cubic feet

Solution:

The image given is a rectangular prism (or) a cuboid.

Area of base = l × b = 25 square feet

Height of the prism = 3 feet

Volume of the prism = l × b × h

                                  = (l × b) × h

                                  = 25 × 3

                                  = 75 cubic feet

Volume of the prism = 75 cubic feet

Hence, the volume of the prism is 75 cubic feet.

8 0
3 years ago
Read 2 more answers
0.54 0.378<br> 0.54 divided by 0.378
Novay_Z [31]
If it’s to the nearest tenth it’s 1.4 if it’s the nearest hundredth 1.42
3 0
3 years ago
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