X2 is double the amount of x1
Answer:
9
Step-by-step explanation:
sqrt(85) is about 9.2, and the question asks to round to the nearest integer, making it 9. 9.2^2 is almost 85, which is how you can check your answer.
Answer:
985.25
Step-by-step explanation:
An easy way to divide by larger numbers is to see if the divisor fits into the thousands, hundreds, tens, and ones place.
8 doesn't go into 7, so you'd bring down the number in the hundreds place and so on and so forth.
Charles Lindbergh made the first solo airplane flight from New York to paris.
His flight covered about 3 610 miles in 33.5 hours.
Let’s find the Unit Rate for this given data:
=> 3 610 miles is the total distance
=> 33.5 hours is the time
Let’s divide the distance by time to get the answer
=> 3 610 / 33.5
=> 107.8 miles per hour – this is the unit rate that Charles travelled in plane from New York to Paris
So we have the equations:
y - 4x = 2 --- equation 1
5y - 2x = 1 --- equation 2
(equation 2) * 2
10y - 4x = 2 --- equation 3
(equation 2) - (equation 3)
-9y = 0 so y= 0 and thus x = -1/2
Hope that helps!
