markups and markdowns
percent change
circumfrence
findig simple interest
rules! :}
100

these questions will be based on this one question: a toy store manager marks down the price of old toys, which were originally sold for x dollars, by 36%. write the markdown as a decimal

0.36

100

how do you find the percent increase

1. you find the amount of change by subtracting the greater value by the lesser value.

2. you divide the amount of change by the original amount

100

what is a radius and what is a circumference

a radius is a line segment with one endpoint at the center of the circle and the other endpoint on the circle. a circumference of a circle is the distance around the circle

100

what is a principal

the original amount of money deposited or borrowed

100

if somebody takes more than 2 minutes...

the other team can answer ( that will rarely happen because the question aren't that hard)

200

these questions will be based on this one question: a toy store manager marks down the price of old toys, which were originally sold for x dollars, by 36%. write a formula for the sale price of the toys.

x-0.36= 0.64

200


what is the percent increase





200

whats the equation for finding diameter if the radius is 45

radius times 2. so 45 times two. so the diameter is 90

200

what is a simple interest

it is a fixed percent of the principle

200

yes, you can use your calculators when VERY VERY necessary.

BUT DONT CHEAT!

300

these questions will be based on this one question: a toy store manager marks down the price of old toys, which were originally sold for x dollars, by 36%. what if the original price was 30%? whats the sale price now?

19.2$

300

how do we use percent change in real life?

  • Shops advertise discounts on products.  These discounts are percentages.
    "Up to 50% off marked prices"

  • Financial institutions quote interest charged to the client on loans, or interest paid for money invested, as a percentage.
    "Housing Loans-4.95% p.a. for the first 12 months"

300

what is the circumference of the circle if the radius is 60

so, circumference is diameter times pi. so first we have to find the diameter by doubling 60 and getting 120. then we multiply it by 3.14 to get 376.8

300

where can you find simple interest in real life

for depositing money in banks, to pay taxes.

300

don't look at your books or notebooks

try to figure it out yourself 

400

if you buy that toy in no. 300 (it was 19.2$) how much do you save by buying the sales price?

10.8 

400

a bikes original price is 109$ the new price is 96$. what is the percent change

11%

400

THE MYSTERY BOX HAS BEEN FOUND! IF YOU ANSWER THIS QUESTION CORRECTLY IN 15 SECONDS U WIN THE POINTS. IF  U DONT, U LOSE THEM! WHAT IS THE DIAMETER IF THE CIRCUMFERENCE IS 45

22.5

400

what is the formula you can use to find the simple interest if a man deposits 50$ and earns 5% simple interest for 2 years?

interest rate as a decimal: 0.05 times the original deposit: 50= 2.5. then 2.5 times 2 years is 5$. then interest for two years plus initial deposit is 55$

400

if you see someone cheating, tell me

even if it's your best friends

500

David moved from a house that is 89 miles away from his workplace to a house that is 51 miles away from his workplace. What is the percent decrease in the distance from his home to his workplace?

43%

500

the radius of a circle is 2 times the amount of hands there are in a clock. find the circumference of the circle

it's 37.68

500

karen and her kids borrowed 600$ on a 6-year loan. they are charged 6% simple interest per year. how much interest is she charged for 4 years? what is the total amount she has to pay back? use your calculators if needed

0.06 times 600$= 36

36$ times 6= 216

216 + 600= 816$

500

there is one mystery box, so be careful

GOOD LUCK :P

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