1/(3b)=4/5 multiply both sides by 5
5/(3b)=4 multiply both sides by 3b
5=12b divide both sides by 12
b=5/12 (not sure why you don't have that as an option in your answers, perhaps I misunderstood your description of the original equation...)
Answer:
3 * ( (-)) ÷ (-))
Step-by-step explanation:
if you have 16 socks then you will have 8 pairs of 2.
16 / 2 = 8
answer is 8
∠CPB is a central angle, and so Arc:CB = 30 degrees
(if it is an inscribed angle than you multiply it by 2)
A circle is 360 degrees
Arc: AB is 180 degrees (half a circle)
Arc: CB is 30 degrees
360 - 180 - 30 = 150
Arc AC is 150 degrees
hope this helps
Answer:
A simple way to mentally subtract is to simplify the numbers, subtract, then subtract or add for the simplified answer.
Step-by-step explanation:
A simple way to mentally subtract is to simplify the numbers, subtract, then subtract or add for the simplified answer. For this 304 - 81 is easier as 300 - 80. Make note that we took away 4 from 304 and 1 from 81. Now we just subtract mentally, and 300 - 80 = 220. If we took 4 from 304, this means that our answer should be 4 less, since 4 less would be 304 - 80 = 216. If we took 1 from 81, then we add 1 back to get the equation 304 - 81 = 217.
304 - 81 = ?
300 - 80 = 220
304 - 80 = 216
304 - 81 = 217