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dexar [7]
3 years ago
12

ALG 2 7x+y=9 solve for y

Mathematics
1 answer:
____ [38]3 years ago
5 0

7x+y-9=0

move constant to the left by adding its opposite to both sides. the sum of the two =0

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Please help me ASAP
velikii [3]

you got it right :)

hope this helps

5 0
3 years ago
Read 2 more answers
Luke writes 1/4 of one essay in 20 minutes.
Keith_Richards [23]

Answer:

20 times 4 is 80  so It will take Luke 80  minutes to complete the essay

8 0
2 years ago
A realtor sells a house for $460000. If she earns 3% of the houses price as a commission, how much is her commission?
aleksandrvk [35]

Answer:

$13,800

Step-by-step explanation:

Take 460,000 and multiply it by .03 (.03 is 3% as a decimal)

hope this helps! :D


7 0
3 years ago
If x, y, and z are positive integers such that xyz+30xy+21xz+2yz+105x+10y+7z=812, find x+y+z.
Ket [755]

Answer:

x= 2, y= 2, and z= 6

Step-by-step explanation:

If this is a Diophantine equation, add 35 to both sides and factor the left:

(3x+1)(2y+7)(z+5) = 847 = 7 times 112

Each integer factorization of 847 into 3 factors leads to a different number/value of x, y, and z. If the first factor, (3x+1), is 1 more than a multiple of 3, and the second factor, (2y+7), is odd, then x, y, and z will be integers.

For example:

847 = 121 times -7 times -1 gives (x, y, z) = (40, -7, -6) because 121 times -7 times -1 is 847 as well, it checks out.

If x, y, and z need to be positive, then the three numbers/factors need to be greater than 1, 7, and 5. The only combination that works is 7 times 11 times 11, which gives (x, y, z) = (2, 2, 6).

:)

6 0
3 years ago
Why is the remaining credit after 68 minutes of calls?
hodyreva [135]

first of all the miniutes is not a linar function cause the first miniutes is 45 the 12 minuets later 57 but 11 minuets later 68 minuets so the minuets is not linear

what i did to find the credit was that i took 24.15-1.59 wich gave me 22.59 then i did 22.59-1.59 which gave me 21.03 if that is not correct

6 0
3 years ago
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