Solve the system of equations 2x-y=1; x+2y=8 graphically and find the coordinates of the points where corresponding lines intersect y-axis.
$5$ $1.5$ $-3°5$ $-7$ $-10$ $-3$ Find the mean temperature.
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7. The low temperatures in deg rees Fahrenheit for a week were $-3,5,-9,2,6,-11$ and $-4$ Find the mean temperature. $=\left(-3\right)+5=\left(-9\right)-2+6-1-11\right)=\left(-4\right)=1-11-4$
$7.$ The low temperatures in degrees Fahrenheit for a week were $-3,5,-9,2,6$ $-11,$ $and4$ $4$ Find the mean temperature.
$5$ 5 The midday temperature, in Celsius degrees $\left(°$ $C\right)$ on four successive days is $1.5,-2.6,-3.4$ and $0.5$ Calculate the mean temperature.
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