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miss Akunina [59]
3 years ago
6

Someone help me please

Mathematics
1 answer:
Studentka2010 [4]3 years ago
4 0

Step-by-step explanation:

The slope of the line passing through two points is given by,

\frac{y2 - y1}{x2 - x1}

13)

\frac{(0 - y)}{(0 - 2)}  =  (\frac{ - 3}{2} )

\frac{ - y}{ - 2}  =  \frac{ - 3}{2}

y =  - 3

option D

14)

\frac{ ( - 3 - y)}{(1 + 5)}  =  \frac{ - 1}{6}

\frac{ - 3 - y}{6}  =  \frac{ - 1}{6}

- 3 - y =  - 1

- y =  - 1 + 3 = 2

y =  - 2

option C

15)

\frac{(y - 4)}{( - 5 + 1)}  =  \frac{1}{4}

\frac{y - 4}{ - 4}  =  \frac{1}{4}

- y + 4 = 1

- y = 1 - 4 =  - 3

y = 3

option B

16)

\frac{(y + 3)}{( - 4 - 3)}  =  \frac{ - 3}{7}

- (y + 3) =  - 3

y = 3 - 3 = 0

option C

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Answer:

{ \rm{4x - 3y = 12 -  -  -  \{eqn(a) \}}} \\ { \rm{4x - 5y =  - 4 -  -  -  \{eqn(b) \}}}

• subtract eqn(b) from eqn(a);

{ \underline{ \rm{  - \binom{4x - 3y = 12}{4x - 5y =  - 4} }}} \\ { \rm{0x + 2y = 16}} \\  \\ { \rm{2y = 16}} \\  \\ { \boxed{ \tt{ \:  \: y = 8 \:  \:   }}} \\

• find x :

{ \rm{4x - 3y = 12}} \\ { \rm{4x - 3(8) = 12}} \\ { \rm{4x = 36}} \\  \\ { \boxed{ \tt{ \:  \: x = 9 \:  \: }}}

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A person earns 23,000 one year and gets a 5% raise in salary. Calculate the new yearly salary using a percent greater than 100
Kazeer [188]

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Step-by-step explanation:

Given that :

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Due to weather mark walk to school day of the 20 days in february what would be the fraction representation for the number of da
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Tbe question doesn't state the number of days he walked to school out of 20 school days in the

Month of February.

Answer:

Kindly check explanation

Step-by-step explanation:

To. Obtain the fractional representayion for the number of days he walked to school ;

Let the number of days he walked to school = 10 (this is an hypothesized value)

Number of school days in February = 20

Fraction = 10 /20 = 0.5

The percentage of times walked to school : multiply the fraction obtained above by 100%

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