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samsamisam4951
06.12.2019 •
Mathematics
Let an = 1 4n − 1 for n = 1, 2, 3, . write out the the first three terms of the following sequences. (a) bn = an + 1 b1 = 4/3 b2 = b3 = (b) cn = an + 3 c1 = c2 = c3 = (c) dn = an2 d1 = d2 = d3 = (d) en = 2an − an + 1 e1 = e2 = e3 =
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Ответ:
x = 11(13/14)
Step-by-step explanation:
3/5(x – 7/10) = -31/4
open the bracket:
3/5 * x – 7/10 = -31/4
3/5 * –7x/10 = -31/4
3/5 + 31/4 = 7x/10
(12+155)/20 = 7x/10
167/20 = 7x/10
cross multiply:
140x = 1670
x =1670/140
x = 11(130/140)
x = 11(13/14)