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ANTONII [103]
3 years ago
5

Draw a 3 by 7 square. Find its area , show your reasoning

Mathematics
1 answer:
Anna007 [38]3 years ago
5 0
Well, it wouldn'r be a square, but a rectangle.
3*7=21
The area of the rectangle is 21u²
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Six friends go to a movie theater. In how many different ways can they sit together in a row of six empty seats?
ZanzabumX [31]

Answer:

720

I think..i hope it helps

7 0
3 years ago
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The property tax on a house, t, is directly proportional to the assessed value, v. If the tax on the house with an assessed valu
Brut [27]

Answer:

3150

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8 0
2 years ago
— 4х + 7y = 20<br> у = 3х + 15
Angelina_Jolie [31]

Answer:

x=-5

Step-by-step explanation:

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6 0
3 years ago
If $x$, $y$, and $z$ are positive integers such that $6xyz+30xy+21xz+2yz+105x+10y+7z=812$, find $x+y+z$.
harina [27]

Answer:

10

Step-by-step explanation:

When we simplify we get $$z(6xy+21x+2y+7)+30xy+105x+10y=812.$$

Then we continue to factor to get: (z+5)(6xy+21x+2y+7)&=847.

We then see that we can factor (6xy+21x+2y+7) into (z+5)(3x+1)(2y+7)&=847.

we then do the prime factorization of 847, which i think is,  7*11*11. we have to find the numbers that multiply to 847 and then plug them into z+5, 3x=1,2y+7.

It has to be a positive, non-negative integer, right?

We also see that 3x+1=11 so we see that x=10/3 (which wont work).

So 3x+1=7, so x=2.

So 11 has to be in another term. It has to be in 2y+7=11 so y=2

for the last term we get z+5=11 so z=6

2+2+6=10

Hope this helps and if you want please consider giving me brainliest. :)

8 0
3 years ago
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Rasek [7]
0.  Each time you're adding 0.75, so adding -0.75+0.75=0!
5 0
3 years ago
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