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Katyanochek1 [597]
3 years ago
15

2x-5y=17 ..solve for y

Mathematics
1 answer:
AlladinOne [14]3 years ago
7 0
2x-5y=17\ \ \  \ | subtract\ 2x\\\\
-5y=17-2x\ \ \ | divide\ by\ -5\\\\
y=\frac{-17+2x}{5}\\\\Solution\ is\ y=\frac{-17+2x}{5}.
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If y varies directly as x and x=2 when y=−4, find y when x=−6.
kakasveta [241]

Answer:

Equation: x × -2 = y

Solution: y = 12

Step-by-step explanation:

if (x = 2) is (y = -4) then (x = 1) is (y = -2) so if (x = -6) is (y = 12) if we follow the equation [x × -2 = y] which was found using the first set of variables and dividing each by 2.

4 0
3 years ago
I need to know what the answer to that question is and I need to know how to do it
mel-nik [20]

Answer:

\frac{59}{8}  or 7\frac{3}{8}

Step-by-step explanation:

\frac{80}{4}  - 12\frac{5}{8}

First you need to make the 12 5/8 into an improper fraction by multiplying 12 by 8 and then adding the total by 5.

12\frac{5}{8} -> \frac{101}{8}

Now you have \frac{80}{4} - \frac{101}{8} so you need a common denominator by multiplying the first fraction by 2

\frac{80}{4} -> \frac{160}{8}

Then you subtract 160 - 101 which equals 59.

\frac{59}{8}  or 7\frac{3}{8}

5 0
3 years ago
Read 2 more answers
Daeja and Juana solved this equation 6 = 1/2s.
xz_007 [3.2K]

Answer:

Daeja is correct.

Step-by-step explanation:

Equation: 6 = 1/2s

Solve:

(2)6 = 1/2s(2) <== multiply both sides by 2

12 = s    or    s = 12

Therefore, Daeja is correct.

I multiplied both sides by 2 to isolate s, and 2 ⋅ 6 is 12.

Hope this helps!

5 0
2 years ago
Please help me with this!!!
krok68 [10]

Answer:

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2.25 and 4.8 =10.8

Hope this helps!
4 0
3 years ago
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