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Afina-wow [57]
4 years ago
6

Which is easier to solve for when using substitution y=6x-9 or y=-3x

Mathematics
2 answers:
zepelin [54]4 years ago
7 0

x=-1 y=-15

Step-by-step explanation:

y=6x-9. y=-3x

-3x=6x-9

-9x=9

x=-1

y=6(-1)-9

y=-6-9

y=-15

erastova [34]4 years ago
5 0

Answer: In my opinion, the easiest one for me to solve would be y=6x-9

Step-by-step explanation:

Like I said it’s how I would really think about this

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Suppose 123 people voted for Danny. If 55 of the votes were from girls what would be the ratio of voted from girls to votes from
PtichkaEL [24]
Well you know that the amount of boys that voted for Danny has to be 123 - 55, so you do that and get 68, then the ratio of girls to boys is 55:68, and that can't be simplified anymore because 55 has factors of only 1, 55, 11, and 5, and that doesn't get you anywhere.
8 0
4 years ago
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Alan works at a gym. One week he records the number of people to visit the gym each day. The mean average for Monday to Friday i
stellarik [79]

Answer:

146 people

Step-by-step explanation:

The formula for mean = sum of values/number of values

For Monday to Friday , the average number of people that came = 98

Hence, the total number of people that came is calculated as:

Number of people that attended Monday to Friday = 98 × 5 = 490 people

The number of people that came on Saturday = 162 people

The mean average for the whole week is 114.

The number of days in a week = 7 days

The number of people that came in on Sunday is represented = x

Therefore,

490 + 162 + x/7 = 114

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Therefore, 146 people visited on Sunday

6 0
3 years ago
12=24-y find yhelp me pleaseee
Reptile [31]

y = 12

Explanation:12\text{ = 24 - y}

We would collect like terms by subtracting 24 from both sides:

12\text{ - 24= 24 - 24 - y}\begin{gathered} -12\text{ = 0 - y} \\ -12=\text{ -y} \end{gathered}\begin{gathered} \text{divide both sides by -1:} \\ \frac{-12}{-1}=\frac{-y}{-1} \\ y\text{ = 12} \end{gathered}

8 0
1 year ago
Endpoint: (2,5), midpoint: (3,4)<br><br><br>Missing endpoint:​
sashaice [31]

Answer: Missing\ endpoint:\ (4,3)

Step-by-step explanation:

The formula to find the x-coordinate of a Midpoint, is:

x=\frac{x_1+x_2}{2}

And formula to find the y-coordinate of a Midpoint, is:

y=\frac{y_1+y_2}{2}

Given the Endpoint (2,5) and the Midpoint (3,4), we can idenfity that:

x=3\\x_1=2\\\\y=4\\y_1=5

Therefore, in order to find the x-coordinate of the missing endpoint, we can substitute values into the formula  x=\frac{x_1+x_2}{2} and solve for x_2:

3=\frac{2+x_2}{2}\\\\3*2=2+x_2\\\\6-2=x_2\\\\x_2=4

To find the y-coordinate of the missing endpoint, we can substitute values into the formula  y=\frac{y_1+y_2}{2} and solve for y_2:

4=\frac{5+y_2}{2}\\\\4*2=5+y_2\\\\8-5=y_2\\\\y_2=3

Therefore, the missing endpoint is:

Missing\ endpoint:\ (4,3)

4 0
3 years ago
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