2x99=99+99
3a+3a=2x3a=6a
3x11+3x19=3x30
Answer:
The first plane is moving at 295 mph and the second plane is moving at 355mph.
Step-by-step explanation:
In order to find the speed of each plane we first need to know the relative speed between them, since they are flying in oposite directions their relative speed is the sum of their individual speeds. In this case the speed of the first plane will be "x" and the second plane will be "y". So we have:
x = y - 60
relative speed = x + y = (y - 60) + y = 2*y - 60
We can now apply the formula for average speed in order to solve for "y", we have:
average speed = distance/time
average speed = 1625/2.5 = 650 mph
In this case the average speed is equal to their relative speed, so we have:
2*y - 60 = 650
2*y = 650 + 60
2*y = 710
y = 710/2 = 355 mph
We can now solve for "x", we have:
x = 355 - 60 = 295 mph
The first plane is moving at 295 mph and the second plane is moving at 355mph.
Answer:
C ; 7 and 8
Step-by-step explanation:
The correct question is as follows;
On a number line, between which two consecutive whole numbers would 7.8 be located?
Solution
Here, we want to know between which consecutive whole numbers will 7.8 be located .
As we know, 7.8 is a decimal, it is same as 7 + 0.8
It is greater than 7 but less than 8;
Thus it is between 7 and 8
Their ratio would be: Cookie / Donut = 4/3
Let, the amount of money earned from Donut = x
It would be: 4/3 = 375 / x
x = 375/4 * 3
x = 1125/4
x = 281.25
In short, Your Answer would be $281.25
Hope this helps!
Answer:
71701,71702, 71703 etc
Step-by-step explanation:
Given :
×
and 8.17×
Now
×=71700 and
8.17×=817000
There are so many numbers between 71700 and 817000
Like: 71701,71702, 71703 etc
