Answer:
19
Step-by-step explanation:
-3q+5q=38
2q=38
q=19
please like my answer
Answer:
3 : 4
Step-by-step explanation:
Men = 40, Women = 30
Ratio of women to men
![= \frac{30}{40} = \frac{3}{4} = 3 : 4 \\](https://tex.z-dn.net/?f=%20%3D%20%20%5Cfrac%7B30%7D%7B40%7D%20%20%3D%20%20%5Cfrac%7B3%7D%7B4%7D%20%20%3D%203%20%3A%204%20%5C%5C%20)
Answer:
Stuck in same question Jinx
Step-by-step explanation:
Option D:
The sum of any two real numbers is also a real number.
Solution:
<u>Closure property of addition of real numbers:</u>
Sum of any two numbers is also a real number.
i.e., a + b = c
If a and b are real, then c is also a real number.
To find which illustrates the closure property of addition of real numbers:
Option A:
The sum of any two numbers is close to the product of those numbers.
It is not true because it is addition property not product.
Option B:
The sum of any two numbers is close to the difference of those numbers.
It is not true because it is addition property not difference.
Option C:
When you add 1 to a number you get the next closest number.
It is not true by the above definition.
Option D:
The sum of any two real numbers is also a real number.
This is the closure property of addition of real numbers.
It is true.
Hence the sum of any two real numbers is also a real number.
Option D is the correct answer.
Answer:
3 hours
Step-by-step explanation:
Speed is the ratio of distance traveled to time taken, it is given as:
Speed = distance / time
An executive drove from his home at an average speed of 35 mph to an airport where a helicopter was waiting. He then took the helicopter and flew to the corporate offices at an average speed of 78 mph. Given that the executive spent the same amount of time in the car as he did the helicopter how long did it take the executive to get to work.
Let the amount of time the executive spent in the car be t hours, therefore the amount of time spent in the helicopter = t hours.
For car:
Speed = distance / time
35 = distance (
) / t
![d_1=35t](https://tex.z-dn.net/?f=d_1%3D35t)
For helicopter:
Speed = distance / time
78 = distance (
) / t
![d_2=78t](https://tex.z-dn.net/?f=d_2%3D78t)
The total distance traveled = 169.5 miles
![d_1+d_2=169.5\\35t+78t=169.5\\113t=169.5\\t=169.5/113\\t=1.5\ hours](https://tex.z-dn.net/?f=d_1%2Bd_2%3D169.5%5C%5C35t%2B78t%3D169.5%5C%5C113t%3D169.5%5C%5Ct%3D169.5%2F113%5C%5Ct%3D1.5%5C%20hours)
The time taken for the executive to get to work = time spent on car + time spent on helicopter = 1.5 + 1.5 = 3 hours