The answer is w = 5/2 or -5/2
from the equal angles it is an isosceles triangle, AB = AC.
4x + 1 = 2x + 23
4x - 2x = 23 - 1
2x = 22
x = 22 : 2
x = 11
----------------------
4 * 11 + 1 = 2 * 11 + 23
45 = 45
--------------
now we find BC
3x - 8
3 * 11 - 8 =
25 (is the value of BC)
Answer:
24 chairs in each class needed
25 classrooms
700 chairs total
how many extra chairs
chairs will be c
t is total
t= 25×c
opposite of multiplication is division( 25 is multiplying by c) c needs to be alone
25 classrooms times chairs equal total chairs
t is 700
700=25×c
700/25=25/25c
700/25=C
c is 28
so 28 chairs for 25 classrooms
they need 24 chairs per class
so there are 4 extra chairs per class
4×25 is 100
**or just multiply 25 classes and 24 chairs
25 times 24 is 600
there are 700 chairs
100 left over
so 100 extra chairs