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Fiesta28 [93]
3 years ago
10

Solve the system of linear equations by graphing. y=x+2 y=-1/2x+2

Mathematics
1 answer:
monitta3 years ago
4 0

Answer:

(0;2)

Step-by-step explanation:

substitute the value of y in the equation, then solve in x

x+2=-1/2x+2

x=0

substitute the value of x in the equation.

y=2

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Poppy, felix and Alexi sell 700 raffle tickets between them. Poppy sells twice as many tickets as Felix, and Alexi sells 25 more
slavikrds [6]
Let give Poppy = P, Felix = F, Alexi = A
so P+ F + A = 700 ----(1)
P = 2F ----(2)
A = 25 + P ---(3)
we will think in term of P

from (2) F = P/2

from (1) P + F + A = 700
P + P/2 + 25 + P = 700 ---(4)
(4) multiplied by 2
2P + P + 50 + 2P = 1400
5P + 50 = 1400
5P = 1350
so P = 270

so Poppy sold 270 tickets
Felix sold 135 tickets
and Alexi sold 295 tickets //
3 0
3 years ago
Find the logarithm of the number 45318​
MatroZZZ [7]
The logarithm of the number 45318 is 4.66.
8 0
4 years ago
Use the data set below to answer the following question.
RSB [31]

Answer:

2.4

Step-by-step explanation:

We have to find the mean first

Mean = \frac{Sum}{No.\ of\ values}\\ = \frac{2+4+7+2+3+7+9+3+1+7}{10}\\ = \frac{45}{10}\\ = 4.5

Now we have to find deviations.

Note that the deviations are calculated by subtracting the mean from the value. The distance is always positive so the deviations will be positive

Value         Deviation

2                 2-4.5 = |-2.5| = 2.5

4                  4-4.5 = |-0.5| = 0.5

7                  7-4.5 = 2.5

2                 2-4.5 = |-2.5| = 2.5

3                 3-4.5 = |-1.5| = 1.5

7                  7-4.5 = 2.5

9                  9-4.5 = 4.5

3                 3-4.5 = |-1.5| = 1.5

1                 1-4.5 = |-3.5| = 3.5

7                  7-4.5 = 2.5

The last step is to find the mean of deviations.

Mean\ of\ deviations = \frac{(2.5+0.5+2.5+2.5+1.5+2.5+4.5+1.5+3.5+2.5}{10}\\ = \frac{24}{10} \\=2.4

The mean absolute deviation of given data set is 2.4 ..

8 0
3 years ago
Help asap pleaseee ?:)
igomit [66]
2 and 3 are correct. 1 is false because the graph opens downward. If the a value, which is -1 in this case, is less than 0, the graph will open downward. -1 is less than 0 so the graph opens downward
4 0
3 years ago
Can somebody help me
Ronch [10]

check the picture below.

4 0
4 years ago
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