Answer:
x = 1 1/4
Step-by-step explanation:
sqrt( 7x+2) = sqrt(3x+7)
Square each side
(sqrt( 7x+2))^2 = (sqrt(3x+7))^2
7x+2 = 3x+7
Subtract 3x from each side
7x-3x +2 = 3x+7-3x
4x+2 = 7
Subtract 2 from each side
4x+2-2 = 7-2
4x = 5
Divide by 4
4x/4 = 5/4
x = 1 1/4
Check for extraneous solution
sqrt( 7*5/4+2) = sqrt(3*5/4+7)
sqrt( 35/4 + 8/4) = sqrt(15/4+28/4)
sqrt( 43/4) = sqrt(43/4)
Solution is valid
Answer:
Starbucks by 1 cent difference.
Step-by-step explanation:
Divide: 3.36 divided by 24 to find Starbucks. You get 14 cents per ounce
Divide: 2.40 divided by 16 to find Circle K. You get 15 cents per ounce
Compare: Starbucks is cheaper by 1 cent.
<span><span><span>22x</span>−11 over x to the second power - x - 30.</span></span>
Answer:
20.25
Step-by-step explanation:
45x.40=20.25
Answer:
24/30
Step-by-step explanation: