idonthaveaname18 idonthaveaname18

23-08-2019
Mathematics

contestada

Rick received better results for his Maths test than for his English test. If the sum of his two marks is 163 and the difference is 31, find the mark for each subject.

Respuesta :

ipgill1631 ipgill1631

23-08-2019

Answer:

Let x= Maths marks

and y= English marks

Step-by-step explanation:

x + y = 163

x - y = 31

-(x-y) = -(31)

.: 2y = 132

y = 66

.: x - 66 = 31

x = 31 + 66 = 97

.: maths marks= 97

English marks= 66

Answer Link

jaimyrenji jaimyrenji

23-08-2019

Answer:

Step-by-step explanation:

LET MATHS MARKS BE X AND ENGLISH BE Y

GIVEN,

X+Y =163...........1

X-Y=31............2

FROM 1 AND 2 ,

2X=194

X= 97

Y=66

Answer Link

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