First write an equation system based on the problem
We can write "<span>Bread and sugar cost 110 together" as
</span>∴ b + s = 110
We can write "<span>bread cost 100 more than sugar" as
</span>∴ b = 100 + s
<span>
Second, solve the equation system by subtitution method
Subtitute b with (100+s) in the first equation, and we'll find the value of s
b + s = 110
(100 + s) + s = 110
100 + 2s = 110
2s = 110 - 100
2s = 10
s = 10/2
s = 5
The cost of the sugar is 5</span>
Answer:
w=1.4
Step-by-step explanation:
11w+5w-1=65w-36
16w-1=65w-36
16w-65w= -36+1
-49w= -35
w= -35/-49
w= 1.4
The correct answer is the second option: plus or minus square root of 20
Hope this helped :)
