Answer:
C = 
Step-by-step explanation:
given A varies directly as B and inversely as C then the equation relating them is
A = 
← k is the constant of variation
to find k use the condition A = 6 , B = 10 , C = 15 , then
6 = 
( multiply both sides by 15 )
90 = 10k ( divide both sides by 10 )
9 = k
A = 
← equation of variation
when A = 92 and B = 107 , then
92 = 
( multiply both sides by C )
92C = 963 ( divide both sides by 92 )
C =
Answer:
y=12
Step-by-step explanation:
12=24-y
step 1
subtract each side by 24
24-24 cancels out
12-24=-12
now we have
-y=-12
we now have to divide by -1
-1/-1=1
-12/-1=12
so we can conclude that y=12
Answer:
Step-by-step explanation:
5×4+5×3
20+15
25
Answer:
2
Step-by-step explanation:
Since there are four negative signs, we have -1 multiplying each other 4 times, multiplying by positive 2. This is then 1 * 2, which is 2.
