Xy= 120
x= 7+y
(7+y)(y) = 120
y^2 + 7y - 120 = 0
(y + 15) (y - 8) = 0
Since we are finding two positive numbers,
If y= 8 then x= 15
The two numbers are 8 and 15
No because 3*2= 6 while 5*2=10 so if it was equivalent it would of been 3/5 to 6/10
The range of it is 90 subtract the greatest # from the least 90-8
Answer
B is the correct answer.
Step-by-step explanation:
This is the given information for which system of equations would be used to find out how many dimes and quarters Amir has?
x = dimes x = 0.10 or 0.1
y = quarters y = 0.25
31 coins
worth $5.20 = 5.2
x + y = 31
0.1x + 0.25y = 5.2
Answer:
6.2
Step-by-step explanation:
The lines represent absolute value, all your doing is changing it to a positive number which is 6.2
If the question asked What is the evaluate of I6.2I, the answer would be 6.2, it is always a positive number
