Percents
Financial Math (Elsie's personal favorite)
Exponential and linear functions
Half-life and doubling-time
Fun Questions! Think Trivia not math lol
100

What is 29% of 51



14.79

100

How much money would Mario have to deposit now (one-time deposit) if the bank is offering an interest rate of 2.15% compounded continuously, and he would like to have $15,000 to spend on his wedding with Princess Peach in 10 years.

How much in interest would he earn during these 10 years?

$12,098.12

$2,901.88

100

A magical fish gives you 32 pennies on October 3rd and says she will double them every day. So on October 4th, you have 64 pennies, and by October 5th, you get 128 pennies.

How many pennies will you have on day 9?

2^13 pennies

100

A certain medication breaks down at a rate of 5.25% per hour. Find the approximate half-life.



13.33 hours



100

Which country has the unicorn as their national animal?

Scotland!

200

A pair of wildly expensive pants is 13% off and is now priced at $75. What is the original price of the pants? Round to nearest two decimal places.



$86.21

200

35 years from now, your mom would like to have $500,000 in her retirement account. She can obtain an APR of 4.5% compounded monthly. Assuming that no additional deposits are to be made to the account, how much will your mom need to deposit now in order to reach her goal?

103,809.12

200

Find the equation of the line that passes through (5,7) and (10,20).



y=13/5x-6



200

Suppose that the population of emotional clowns is increasing by 1.9% per year.

a) if the population was 900,000 in 2000, what should we expect the population to be in 2025?

b) how long will it take for the population to reach 1,000,000?

a) 1,440,778 emotional clowns (wow that is a lot!)

b) 5.60 years

200

What color is a giraffe's tongue?

Black or dark purple

300

In 2021 the price of your favorite drink increased by 10%. The next year, the price of your favorite drink increased again, this time by 17%. By how much (in % terms) has the price of your favorite drink changed overall?



28.7%

300

8 years after buying 130 shares of some stock for $40 per share, Caleb sells the stock for $5,000. What was his total and annual return on this investment?



Total: -4%

Annual: -0.49%

300

A donkey was 13 inches long when he was born and on his 20th birthday, he was 5 feet 11 inches tall.

a) create a linear model to represent this situation

b) according to the linear model, how tall will Mr. Donkey be on his 24th birthday?

a) y=2.9x+13

b) 82.6 inches or 6.88 feet

300

The half-life of Ibuprofen is 6 hours in the bloodstream. At 10:00 a.m. you have a headache and you take a 25 mg dose of Ibuprofen (imagine this dose is for a small child if you will).

a) how much Ibuprofen would be left in your bloodstream at 6 p.m.?

b) Find the exact rate at which this medication breaks down in your bloodstream.

c) how long will it take to reach 5 mg of Ibuprofen in your bloodstream? 

a) 9.92 mg

b) -0.1091 or -10.91%, a 10.91% decrease per hour

c) 13.93 hours

300

How many hearts does an octopus have?

not one, not two, but THREE

400

Alli and Sam would like to save $8,300 for a honeymoon and they can afford to deposit $170 monthly into an account earning an interest of 2.15% compounded monthly. If they deposits $170 monthly (combined, they are not each putting that amount in) for the next 4 years, will they reach their goal and how much short/over will they be?

Yes they will reach the goal, they will have saved 8,513.20 and be $213.20 over the goal.

400

When was diet coke introduced in the U.S.?

1982. Idk why anybody would know that but it seemed like a fitting question since everyone and their mom in Utah loves it (guilty as charged, but I usually only drink it at my grandparent's house)

500

Frosty the snowman needs a mortgage loan of $350,000. He can get a 30 year fixed-rate at an APR of 4.75% compounded monthly, with a closing cost of $800 and 2 points. Determine Frosty's total closing cost, monthly payment, and the amount of interest paid over the loan term (in $ and % terms).



Total Closing Cost: $7,800

PMT: $1825.77

Interest ($): $307,277.20

Interest (%): 46.75%

500

What was Lady Godiva known for? And no, it's not chocolate.

Her legendary, and quite eccentric, ride through Coventry, Warwickshire, to protest her husband's heavy taxation of townspeople. (this could be a myth, nobody actually knows)