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3 years ago

Need help asap

Mathematics

2 answers:

vlabodo [156]3 years ago

8 0

Answer:

7680

Step-by-step explanation:

16(24)20

7680

son4ous [18]3 years ago

8 0

V = 2,560 m^3

Step-by-step explanation:

The formula for the volume of a pyramid is...

$V=\frac{1}{3}Bh$

B is the area of the base, which in this case is a rectangle. We need to find the area of the rectangle to plug in for B.

The formula for the area of a rectangle is...

$l*w$

We can plug in the numbers.

$16*24$

= 384

Now that we have B, we can plug that into the volume formula along with the height.

$V=\frac{1}{3}(384*20)$

$V=\frac{1}{3}*7,680$

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Answer:

Step-by-step explanation:

$5J +2S =12.20 ........(1)\\5J+10S=15.80......(2)\\Multiply \:equation \:(1)\:by\:the\:coefficient\:of\:x\:in equation\:(2)\\\\Multiply\:equation(2)\: by\: the\: coefficient\:of \:x\: in \:equation (1)\\\\5J +2S =12.20 ........(1) \times 5\\5J+10S=15.80......(2)\times 5\\\\25J+10S=61......(3)\\25J+50S = 79......(4)\\Subtract\:equation\:(4)\:from\: equation\: (3)\\-40S =-18\\\frac{-40S}{-40}=\frac{-18}{-40}\\ S = 9/20\\$

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