Answer:
7/50 meter
Step-by-step explanation:
Total piece of string = 7/8 meter
Used string = 1/5 of the piece of string
Used string =
1/5 of 7/8 meter
= 1/5 × 7/8
= 7/40 meter
Balance = Total string - used string
= 7/8 - 7/40
= 35-7/40
= 28/40
Balance = 28/40 meter
cuts the rest into 5 equal parts. What is the length of the pieces.
28/40 ÷ 5
= 28/40 × 1/5
= 28 / 200
= 7/50 meter
Length of each piece = 7/50 meter
Answer:
Step-by-step explanation:
Part A:
The equation modeling the problem is an exponential equation of the form:
y = A (b) * ^ t
Where,
A: initial amount
b: decrease rate
t: time
Substituting values we have:
y = 1000 (0.80) ^ t
Part B:
For this case we substitute the value of y = 640 in the equation:
640 = 1000 (0.80) ^ t
We cleared t:
640/1000 = (0.80) ^ t
log0.80 ((0.80) ^ t) = log0.80 (640/1000)
t = log0.80 (640/1000)
t = 2 years
Answer:
B
Step-by-step explanation:
![\dfrac{13}{24}< \dfrac 7{12} < \dfrac 34](https://tex.z-dn.net/?f=%5Cdfrac%7B13%7D%7B24%7D%3C%20%5Cdfrac%207%7B12%7D%20%3C%20%5Cdfrac%2034)
Ratios can be written 3 ways...
14:1 or 14/1 or 14 to 1