If each of the following pairs represents a pair of equivalent rational numbers, find the values of x: (1) -3/7 and x/4
Answers
Answered by
1
Answer:
(i)
13
−4
,
−195
60
−195
60
=
−13
4
=
−13(−1)
4(−1)
=
13
−4
∴
13
−4
and
−195
60
are equivalent.
(ii)
−15
7
,
−75
−35
−75
−35
=
−15
−7
=
15
7
∴
−15
7
and
−75
−35
are not equivalent.
(iii)
−20
16
,
70
−56
20
−16
=
20+4
−16÷4
=
5
−4
70
−56
=
70÷14
−56÷14
=
5
−4
∴
20
−16
and
70
−56
are equivalent
∴(i)
and (iii) are equivalent rationals.
Similar questions