Answer:
7 minutes
Step-by-step explanation:
1000 stairs in 25 minutes
280 stairs in 280*25 / 1000 = 7 minutes
q = unknown number
9q + 6
[Six more(addition) than the product(multiplication) of nine and a number(q).
So 6 is added to 9q(9 times q).]
Since you know q = 6, substitue/plug it into the equation:
9q + 6 Plug in 6 into "q" since q = 6
9(6) + 6
54 + 6
60
Answer:
x=3
Step-by-step explanation:
Answer:
B=100
Step-by-step explanation:
The given circle is
Consider the triangle AOB, Using the triangle sum property, we get
AOB+AOB+BOA=180
Substitute ABO=55 and BAO=45 we get
AOB+55+45=180
AOB+100=180
AOB+100-100=180-100
AOB=80
Here AOB and AOC are supplementary angles
The sum of the supplementary angles is 180 degrees.
AOB+AOC=180
Substitute AOB=80 we get
80+AOC=180
80+ AOC-80=180-80
AOC=100
Now consider the Central angle AOC and intercepted arc AC.
mAOC=mAC
Substitute m AOC=100 and mAC=b we get
100=b
Hence the value of b is 100 degrees.
S= (pi times r times l) + (pi times radius squared)
Factor out the pi times r
S= (pi times r) l + r
Divide
S/(pi times r)= l + r
Find common denominator and subtract
(S- pi times r)/(pi times r) = l
The answer therefore is A