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3 years ago

Can someone simplify this equation and solve for x and y? (2x-5)+(y-1)+x=169

2 answers:

8 0

Answer: The y-intercept is found by substituting known values for x and y in the equation and solving for b. the known values are (x,y) = (2,8.4) Equation of y = 4.2*x + b becomes 8.4 = 4.2*2 + b

Step-by-step explanation:

goldenfox [79]3 years ago

6 0

Answer:

Answer

2x+3y=14,2x−3y=2

Adding :

2x+3y=14

2x−3y=2

__________

4x=16

x=4

∴xy=4×2

2×4+3y=14

8+3y=14

3y=6

y=2

Step-by-step explanation:

here you go

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What is the answer to this question?

melisa1 [442]

Answer: I think it is negative.

Step-by-step explanation: When you add a negative to a negative you still have a negative.

7 0

3 years ago

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klasskru [66]

$\bf |x^2+3x-1|\ \textless \ 3\implies 
\begin{cases}
+(x^2+3x-1)\ \textless \ 3\\\\
-(x^2+3x-1)\ \textless \ 3
\end{cases}\\\\
-------------------------------\\\\
x^2+3x-1\ \textless \ 3\implies x^2+3x-4\ \textless \ 0\implies (x+4)(x-1)\ \textless \ 0
\\\\\\
x\ \textless \ 
\begin{cases}
-4\\
1
\end{cases}\\\\
-------------------------------\\\\
-(x^2+3x-1)\ \textless \ 3\implies x^2+3x-1\boxed{\ \textgreater \ }-3
\\\\\\
x^2+3+2\ \textgreater \ 0\implies (x+2)(x+1)\ \textgreater \ 0\implies x\ \textgreater \ 
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8 0

3 years ago

Help me on this plz

Andrews [41]

Answer: $467.21

Step-by-step explanation:

8% of 600 = 48

600 - 48 = 552

8% of 552 = 44.16

552 - 44.16 = 507.84

8% of 507.84 = 40.6272

8% of 507.84 ≈ 40.63

507.84 - 40.63 = 467.21

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3 years ago

Kiyo bought a pizza for $12.75 and four medium drinks at Pauli´s pizza. Define a variable and write an expression to represent t

Vlada [557]

12.75+4x

Answer: 24.75

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2 years ago

Takes a word processor 20 minutes to spell check 6 pages, how long to check 27 pages

ivann1987 [24]

9514 1404 393

Answer:

90 minutes

Step-by-step explanation:

Assuming the time is proportional to the number of pages, you have ...

time/pages = 20/6 = T/27

Multiplying by 27 gives ...

T = 27(20/6) = 90

It is expected to take 90 minutes to check 27 pages.

6 0

3 years ago