Jerry put 5% of the amount he makes per week into a retirement account, r. He is paid $11 per hour and works 40 hours perweek for a certain number of weeks, w. Write an equation to help him find out how much he puts into his retirement account.

Question

Jerry put 5% of the amount he makes per week into a retirement account, r. He is paid $11 per hour and works  40 hours perweek for a certain number of weeks, w. Write an equation to help him find out how much he puts into his retirement account.

♪chibiterasu · Answer

w = weeks
r = account

w(11 • 40) = r

♪chibiterasu · Answer

wait I forgot something

anonymous · Answer

wouldnt it be 11 times 40w divided by .05r?

♪chibiterasu · Answer

No because we have to multiply 11 by 40 to get how much he earns each week, and r is independent.

w(11 • 40)/0.05

♪chibiterasu · Answer

w(11 • 40)/0.05 = r

anonymous · Answer

can you help me on two more problems?

♪chibiterasu · Answer

I'm a bit tired right now but sure.

♪chibiterasu · Answer

What is the next one?

anonymous · Answer

a furniture store ads a 40% off liquidation sale on all items. what would the sale price (p) be on $2,530?

♪chibiterasu · Answer

2,530 • 1.4 = p

anonymous · Answer

okay and the next is..

♪chibiterasu · Answer

Also for the above one it's 1.05 not 0.05

anonymous · Answer

kyle buys an item which normaly sells for a certain price, x. today the item is selling for 25% off the regular price. a sale tax of %6 is added to the equation to find the final price,f.

♪chibiterasu · Answer

f = 1.06(x • 1.25)