Which ordered pair (a, b) is a solution to the given system? {2a - 5b=1] {3a+5b=14}

(3,-1)

Step-by-step explanation:

WE use elimination method to solve for a  and b

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Divide by 5 on both sides

a = 3

Now plug in a=3 in first equation

Subtract 6 on both sides

5b=-5 ( divide by 5 on both sides)

b = -1

Ordered pair is (3,-1)

3-4

step-by-step explanation:

the answer is 3-4 because both 45 and 60 has a multiple of 15.

45/3=15

60/4=15

therefore the odds against selecting a red is 4-3

answer: what are the following choices