Let x be the page number then x+1 would be the other page number (because the pages are two facing pages which means they follow on consecutively)
Then
(x)(x+1) = 156
x^2 + x - 156 = 0
x = 12 or x = -13( but x can't be a negative number)
so x = 12
and the next page is 13
The formula for the area is l • w
( length • width) 4•12= 48
Answer:
44200 of them were girls
Step-by-step explanation:
If the ratio is 8:25, we must find x:65000
In order to change the ratio 8:25 into x:65000, we must multiply 25 by 2600. So you have to multiply 8 by 2600 too
8 x 2600 = 20800
65000 (total students) - 20800 (boy students) = 44200 (girl students)
If this is what you have in mind
(1/2)x + 5 = 9
Then solving this is quite simple
1st subtract 5 from both sides
(1/2)x = 4
Now divide 1/2 by both sides
x = 8
Answer:
answer is 175
Step-by-step explanation:
i solved it by similarity in triangle small triangle and big triangle are similar to each other.
