Answer:
2 people will take 90 days to complete the same house
Step-by-step explanation:
<u><em>Given:</em></u>
T1 = 30 days
P1 = 6
T2 = x
P2 = 2
This is an inverse proportion because if there are more people, less time will be taken to complete the house and vice versa.
<u><em>So, We'll write it in the order of :</em></u>
=> T1:T2 = P2:P1
=> 30:x = 2:6
<u><em>Writing in fraction form</em></u>
=> ![\frac{30}{x} = \frac{2}{6}](https://tex.z-dn.net/?f=%5Cfrac%7B30%7D%7Bx%7D%20%3D%20%5Cfrac%7B2%7D%7B6%7D)
<em>Cross Multiplying</em>
=> 2x = 180
<em>Dividing both sides by 2</em>
=> <u><em>x = 90 days</em></u>
So, <u><em>2 people will take 90 days to complete the same house</em></u>
Answer:
Step-by-step explanation:
we know that
The compound interest formula is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
substitute in the formula above
Answer:
15 times as long
Step-by-step explanation:
6 meters/0.4 meters is 15, so it is 15 times as long.
X and y are the times in hours that he travelled on foot and on bus
x + y = 1.5 * by 5:-
5x + 5y = 7.5
5x + 60y = 35 subtract:-
55y = 27.5
y = 0.5
and x = 1.5 - 0.5 = 1
so he walked for 1 hour
distance he walked = average speed * time = 5*1 = 5 miles.
Part A: 0.7(x)
Part B: 8.96/0.7 ---> (You can solve this by yourself)
For getting the answer, you can assume the regular price of the book is x. Then, the sale price would be x-0.3x, which is 0.7x
For part B, the price is 0.7 of the original. Dividing the number by 0.7 gets you the original price