Solve each system of equations.

a. x+y=-4
y= - x+5

b. y= - 2x+5
2x+y=5

Step-by-step explanation:

a. x - x + 5 = -4

    5 ≠ -4

b. 2x - 2x + 5 = 5

   5 = 5

infinitely many solutions

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step-by-step explanation:

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1