Answer:
He needs 1 hour 40 minutes more to get the amount of sleep he likes or 1 2/3 hours
Step-by-step explanation:
Justin likes to get 7 hours of sleep.
He woke up after sleeping for 5 1/3 hour = 5 hours 20 mins
Number of more hours needed to get the amount of sleep he likes= 7 hours - 5 1/3 hours.
1 hour = 60 minutes
1/3 hours = 60/3 = 20 minutes
Hours Minutes
7 00 when we borrow 1 hour we borrow 60 minutes
<u>5 20</u>
<u> 1 40</u>
<u />
He needs 1 hour 40 minutes more to get the amount of sleep he likes
or 1 2/3 hours
Answer:
it is ethern y or z
Step-by-step explanation:
you have to solve it to find out
Answer:
<em>c=7</em>
<em>d=5</em>
Step-by-step explanation:
<u>Exponential Equations</u>
We need to recall some properties of exponentials to solve the equations:
Equation A
Squaring:
Simplifying the radicals:
If follows that
c=7
Equation B
![\sqrt[3]{576x^d}=4x\sqrt[3]{9x^2}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B576x%5Ed%7D%3D4x%5Csqrt%5B3%5D%7B9x%5E2%7D)
Raising to the third power:
![(\sqrt[3]{576x^d})^3=(4x\sqrt[3]{9x^2})^3](https://tex.z-dn.net/?f=%28%5Csqrt%5B3%5D%7B576x%5Ed%7D%29%5E3%3D%284x%5Csqrt%5B3%5D%7B9x%5E2%7D%29%5E3)
Operating
Thus:
d=5
Here is the set up:
a = b - 180
a + b = 1520
We have a systems of linear equations in two variables.
b - 180 + b = 1520
2b = 1520 + 180
2b = 1700
b = 1700/2
b = 850
Plug b = 850 into either equation.
I will use a + b = 1520.
a + 850 = 1520
a = 1520 - 850
a = 670
Answer:
Building a is 670 feet. Building b is 850 feet.
