Matemātika
« previous entry | next entry »
Sep. 25., 2017 | 01:22 pm
posted by: emi in pajautaa
Mīļie cilvēki, kā lai šeit tiek līdz iznākumam? Man pa vidu sajūk darbības un sanāk citi cipari.
Q) An office table contains a few large, medium and small envelopes. The number of large envelopes is 3 plus 50% of the number of medium envelopes. The number of small envelopes is 3 times, 20% of the number of large envelopes. There are a total of 66 envelopes on the table . How many small, medium and large envelopes are there on the table?
L = 3 + 0.5M / S = 3×0.2xL / S+M+L = 66
Converting all equations into standard form
L – 0.5M = 3 / 0.6L – S = 0 / L + M + S = 66
Solving the above equations,
S = 12 M = 34 L = 20 envelopes
Q) An office table contains a few large, medium and small envelopes. The number of large envelopes is 3 plus 50% of the number of medium envelopes. The number of small envelopes is 3 times, 20% of the number of large envelopes. There are a total of 66 envelopes on the table . How many small, medium and large envelopes are there on the table?
L = 3 + 0.5M / S = 3×0.2xL / S+M+L = 66
Converting all equations into standard form
L – 0.5M = 3 / 0.6L – S = 0 / L + M + S = 66
Solving the above equations,
S = 12 M = 34 L = 20 envelopes
from:![[info]](http://klab.lv/img/userinfo.gif)
kreiza
date: Sep. 25., 2017 - 03:54 pm
#
No otrās S=0.6L
Liekam iekšā trešajā izteiksmē
L+2L-6+0.6L=66
3.6L=72 un L=20
Rēķinām M un S: M=2x20-6=34
S=0.6x20=12
Atbildēt | Diskusija
from:![[info]](http://klab.lv/img/userinfo.gif)
emi
date: Sep. 25., 2017 - 04:03 pm
#
Atbildēt | Iepriekšējais | Diskusija
from:![[info]](http://klab.lv/img/userinfo.gif)
kreiza
date: Sep. 25., 2017 - 04:08 pm
#
Atbildēt | Iepriekšējais | Diskusija
from:![[info]](http://klab.lv/img/userinfo.gif)
emi
date: Sep. 25., 2017 - 04:09 pm
#
Atbildēt | Iepriekšējais