Hi smart people of math :p can someone help me with this question

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Step-by-step explanation:

15x-y=22---(1)

3x+8y---(2)

(1)-(2)x3: -41y=-53

i.e. y=1.2927 (correct to 5 significant figures)

Put y=1.2927 into (1),

3x+8(1.2927)=15

x=1.5528

Therefore, the answer is (1.55, 1.29) (rounded to the nearest hundredth)

*You can substitute the answer back to the equations

e.g. option a is (0.45, 2.47) so you can put x=0.45 and y=2.47 into 15x-y and you will find that the answer is not 22

Step-by-step explanation: so you multiply the second equation by 5 so it will be 15x+40y=75

Then you minus the equation so it will give u -41y=-53 and then you will divide by -41 so y will be 1.29 and x will be 1.55

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64