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Lynna [10]
3 years ago
5

What is the value of this expression?30-5*4+2

Mathematics
2 answers:
Anna35 [415]3 years ago
6 0
30 - 5*4 +2 = 12 
30 - 20 +2  = 12
10+2           = 12
12               = 12
sweet-ann [11.9K]3 years ago
5 0
30-5*4+2=>30-20+2=>10+2=>12
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Explanation:

The equations are y=x-2 and y=-2 x+7

First we shall solve the equation graphically.

The image of the graph is attached below.

This contains the solution to the system of equations.

The equations y=x-2 and y=-2 x+7 are plotted on the graph.

The intersection of these two equations are the solutions of the system of equations.

Thus, the intersection of the two equations are x=3 and y=1

Now, we shall solve the equation algebraically.

Let us solve the equation using substitution method.

Let us substitute y=x-2 in y=-2 x+7, we get,

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3 years ago
the school band will sell pizzas to raise money for new uniforms the supplier charges $100 plus $4 per Pizza the band members se
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Step-by-step explanation:

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Step-by-step explanation:

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