Math Question and Answers


Question and Answers Forum

All Questions Topic List
Algebra Questions
Previous in All Question Next in All Question
Previous in Algebra Next in Algebra
Question Number 89829 by student work last updated on 19/Apr/20

Commented by MJS last updated on 19/Apr/20
English please / Français s'il vous plaît
Commented by student work last updated on 19/Apr/20

$i n o n e n u m o r a t i o n g o t t o t h e s t u d e n t s$ $o f o n e c l a s s l i k e 65 % p h y s i c s a n d l i k e 75 %$ $m a t h t h e n h o w m a n y p e r c e n t a g e l i k e t h o s e s t u d e n t s$ $b o t h s u b j e c t s ?$
Commented by john santu last updated on 19/Apr/20

$l i k e m a t h 75 % o r 73 % ?$
Commented by john santu last updated on 19/Apr/20

$73 % - x + x + 65 % - x = 100 %$ $x = 38 %$
Commented by john santu last updated on 19/Apr/20

$a n s : 38 %$
Commented by student work last updated on 19/Apr/20

$73$
Commented by student work last updated on 19/Apr/20

$i s i t f o r m u l l a ?$
Commented by john santu last updated on 19/Apr/20

$n (S) = n (A - B) + n (B - A) + n (A \cap B)$
Commented by mr W last updated on 19/Apr/20

$t o b e e x a c t, w e c a n o n l y s a y a t l e a s t$ $38 % l i k e b o t h s u b j e c t s, b e c a u s e t h e r e$ $a r e a l s o s t u d e n t s w h o l i k e n o n e o f$ $b o t h s u b j e c t s .$ $t h e r e f o r e t h e r e i s n o u n i q u e s o l u t i o n!$ $t h i s i s c o r r e c t :$ $27 % l i k e o n l y p h y s i c s$ $35 % l i k e o n l y m a t h e m a t i c s$ $38 % l i k e b o t h s u b j e c t s$ $0 % l i k e n o n e (e . g . i n y o u r s c h o o l)$ $b u t t h i s i s a l s o c o r r e c t :$ $17 % l i k e o n l y p h y s i c s$ $25 % l i k e o n l y m a t h e m a t i c s$ $48 % l i k e b o t h s u b j e c t s$ $10 % l i k e n o n e (e . g . i n m y s c h o o l)$ $s u c h t h a t t h e r e i s a n u n i q u e a n s w e r,$ $i t s h o u l d b e g i v e n t h a t e a c h s t u d e n t$ $m u s t l i k e a t l e a s t o n e s u b j e c t .$
Terms of Service
Privacy Policy
Contact: info@tinkutara.com

Question and Answers Forum