A reciprocal of the number or a certain expression is the multiplicative inverse of a certain numbers. This means that the numerator of the original number becomes the denominator of the reciprocal and the denominator of the original number becomes the numerator of the reciprocal.
In this item, the numerator is -8b and the denominator is 5b - 6. The reciprocal of the expression will then be equal to,
R = -(5b - 6) / 8b
Answer:
68 i think
Step-by-step explanation:
547/9= 61 and 61+7=68..... i think thats it
. Cross multiply: 1200=50x. Divide both sides by 50; therefore, x=24/A.
Answer: 2.87 hours
Step-by-step explanation:
There may be a typo in the question because 55 hours in a day is not logical so you must have meant 5.5 hours.
In that case, the hours he will require on the third day would require the distance left to calculate. Get this distance from the first 2 days.
Day 1 distance travelled = Time * Speed
= 5.5 * 66
= 363 miles
Day 2 distance travelled = Time * Speed
= 5.5 * 58
= 319 miles
Total distance remaining
:= 840 - 363 - 319
= 158 miles
Travelling at 55 miles per hour, the time to be taken is:
= Distance remaining / Speed
= 158 / 55
= 2.87 miles per hour
Answer:
C
Step-by-step explanation:
There is a common ratio between consecutive term in the sequence, that is
÷ 
= 3 ÷ = 30 ÷ 3 = 300 ÷ 30 = 10
This indicates the sequence is geometric with n th term
= a
where a is the first term and r the common ratio
Here a = and r = 10 , thus
= 
= 
× 
= 3 × 
×
= 3 × 
Thus
= 3
→ C
