Corey has $120 in savings and is planning to add $40 each week. dana has $450 in savings and is planning to add $30 each week. their plan is to wait until their savings are equal and then load up their old volkswagen bus and take a road trip. they figure out that the equation used to determine how many weeks it will take until their savings are equal is 40w +120 30w+ 450, where w is the number of weeks they have been saving.

33W

$450-$120 to get the difference of their savings

witch is $330 then you subtract the additional money being added each week which is $40-$30 equals to $10 difference so in order for their accounts to balance you divide the $330 by the $10 difference which will be 33 now that will mean that in 33 weeks their account will be balanced

3 ft

step-by-step explanation:

since the triangle is right use pythagoras' identity to solve for a

the square on the hypotenuse is equal to the sum of the squares on the other two sides, that is

a² + 8² = ( )²

a² + 64 = 73 ( subtract 64 from both sides )

a² = 9 ( take the square root of both sides )

a = = 3