Find the complete solution of the linear system, or show that it is inconsistent.
x + y + z = 8
x + 3y + 3z = 16
2x + y − z = 10

Step-by-step explanation:

Let's add equation a and c to make a new equation in which z is not a variable.

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Now let's add equation b and c, but first, multiply equation c by 3, so that the z's will be eliminated.

Add b and e.

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Now you have a two variable system of equations (d and f)

You can solve this by multiplying by equation d by 6 and equation f by -2

Leaving our equations like;

Add them to eliminate y

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solve for x;

Replace x in either d or f, to find y

Now that you have found x and y, replace them in either a, b, or c, to find z

To make sure that you have found the right values, replace all three variables in any of the equations and it should be equal.

3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold

the answer is 54 sq. ft. i just did this question, on odyssey ware, and it was right. make brainliest.