We need a system of equations to solve this. "Difference" is to subtract, and we are taking this difference of the 2 squared unknowns to be 20. That equation is

. Our "first number is x^2, so 3 times that is 3x^2. "Increased by" is adding to that first number. What we are adding is the second number. The second equation is

. Let's solve the first equation for x^2:

and sub that value for x^2 into the second equation.

and

. Subtract 60 from both sides and combine the y^2 terms to get

. Divide both sides by 4 to get y^2 = 16 and y = 4. Let's go back now and solve for x. We will use the fact that y^2 = 16 to solve for x^2 and then take the square root of it.

, x^2 = 4, so x = 2. Your solutions are x = 2 and y = 4. There you go!
Answer:
It's choice 2.
Step-by-step explanation:
The nth value is 1 more than twice the previous value
- for example, 15 = 2*7 + 1.
Answer:
17496
Step-by-step explanation:

first x = 24, y=3
24= k * 9
k = 24/9
now,
x= 24/9 * 81^2 = 17496
9514 1404 393
Answer:
5 miles
Step-by-step explanation:
An hour and 25 minutes is 85 minutes. Using the given information we can find the distance d with the proportion ...

In 1 hour and 25 minutes, Nick will travel 5 miles.