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4 years ago

Last one of the night

Mathematics

1 answer:

elena55 [62]4 years ago

5 0

To find the height, you would first multiply the length and width. You would get 56. Set that equal to 280 with an x to represent height. 280=56x. Then, you would divide 56 on both sides which leaves you with 5=x. So, your height would be 5 meters.

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Solve the system using elimination and describe your steps. Be sure to verify your solution. • x = y - 3 2x + y = 12

hram777 [196]

So these are our two equations: $2x+y=12\\x=y-3$

Before we can use elimination, subtract y on both sides of the first equation: $2x=-y+12\\x=y-3$

Now we are able to use elimination. To eliminate the y variable, add the two equations together to get $3x=9$ . From here we can solve for x.

For this, just divide both sides by 3 and your first answer will be $x=3$

Now that we have the value of x, substitute it into either equation to solve for y:

$2*3+y=12\\6+y=12\\y=6\\\\3=y-3\\6=y$

<u>In short, x = 3 and y = 6.</u>

6 0

4 years ago

P(A | B) can be read as "the probability that B occurs given that A has

Stells [14]

I belive the answer is true. But 50/50 chance so take your pick. I hope I could help a little. Good luck you got this mathsermind

Haha get it???

Sorry I know it’s cheesy

6 0

3 years ago

Garth buys snow tires from a dealer in Thunder Bay, ON. The tires cost $79.00 each. To make a profit, he must mark them up 40%.

Lilit [14]

79 dollars plus its 40% times 4 equals 442.4 that plus 12% equals 495.488 rounded up to 495 dollars and 49 cents

3 0

4 years ago

A sports ball has a diameter of 16 cm. Find the volume of the ball.

Yuliya22 [10]

Answer:

4/3 pi radius cubed

Step-by-step explanation:

4/3 pi x (8x8x8)

512 x 4/3 pi

2144.660585

8 0

3 years ago

What is 6 3/4+1 5/8=

lara31 [8.8K]

Answer:

Step-by-step explanation:

$6\frac{3}{4}+1\frac{5}{8}=6+1+\frac{3}{4}+\frac{5}{8}\\\\=7+\frac{3*2}{4*2}+\frac{5}{8}\\\\=7+\frac{6}{8}+\frac{5}{8}=7+\frac{6+5}{8}\\=7+\frac{11}{8}=7+1\frac{3}{8}=7+1+\frac{3}{8}\\\\=8\frac{3}{8}$

7 0

4 years ago