What is the square root of 25
y = 0
we are given the following equation and we are to find the value of y when x equals to 28:
substituting the given value of x in the above equation:
therefore, y = 0 when x = 28.
they all sum up to 180. : )
answer: mary's backpack was a better buy.
first, you figure out the cost of mary's backpack. to do this, you find the amount taken off the original price by doing 65 x 25%.
65 x 25% = 16.25. this is the price deducted form the original. therefore the new price is $48.75 because $65(original)- $16.25(amount taken off original)= $48.75.
now onto roberto. first, you find the price taken off by doing 75 x 30%. this gets you $22. 50.
75 x 30%= 22.5
next, you deduct the original from the amount taken off.
since 48.75 is less than 52.50, mary's backpack was a better buy.