Find the sum of 6x+y-2z, -5x-y+z, -x+3y-z
Answers
Answered by
7
Answer:
Page No 21:
Question 1:
Compare the fractions:
(i)
5
8
and
7
12
(ii)
5
9
and
11
15
(iii)
11
12
and
15
16
ANSWER:
We have the following:
(i)
5
8
and
7
12
By cross multiplication, we get:
5 × 12 = 60 and 7 × 8 = 56
However, 60 > 56
∴
5
8
>
7
12
(ii)
5
9
and
11
15
By cross multiplication, we get:
5 × 15 = 75 and 9 × 11 = 99
However, 75 < 99
∴
5
9
<
11
15
(iii)
11
12
and
15
16
By cross multiplication, we get:
11 × 16 = 176 and 12 × 15 = 180
However, 176 < 180
∴
11
12
<
15
16
Answered by
1
I think it helps you answer is 3y-2z
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