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gtnhenbr [62]
2 years ago
10

Which ordered pair (a, b) is a solution to the given system of linear equations? mc010-1.j pg (1, 7) (3, 1) (11, –23) (23, –11)

Mathematics
2 answers:
Natali [406]2 years ago
7 0

Answer:

(11,-23)

Step-by-step explanation:

3a+b=10 equation 1

-4a-2b=2  equation 2

using equation 1 we have

b = 10-3a  equation 3

using equation 2 we have

-4a-2(10-3a)=2

-4a-20+6a=2

2a-20=2

2a=22

a=22/2

a=11

so using equation 3

we have

b = 10-3(11)= 10-33

b=-23

finally the answer is

(11,-23)

Fudgin [204]2 years ago
5 0

Answer:

(11,-23)

Trust me

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Mr green makes some compost he mixes soil, manure and leaf mould in the ratio 3:1:2 mr greenmakes 72 literes of the compost. How
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Answer:

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