vocab
define 'part' in your own words...
A specific portion or segment of a whole.
30% = 7.8
If the original quantity is 100 and the new quantity is 88, what is the percent decrease?
12% decrease
Explain the difference between markup and percent markup in your own words.
Markup refers to the increase in price. Percent markup refers to the percent to which it increased.
In 1 year, Sarah earned $4. How much interest would she earn in 7 years?
4 x 7 = $28
define 'whole' in your own words...
The entire quantity or amount.
Find 0.9% of 4000
0.9% = 36
If the original quantity is 20 and the new quantity is 25, is this a percent increase or percent decrease?
increase
Explain the difference between markup and markdown in your own words.
markup --> Markup refers to the increase in price
markdown --> Markup refers to the decrease in price
An interest rate for a savings account at the bank is 3.2%. How would this percent be expressed as a decimal.
divide by 100 --> 0.032
define 'principal' in your own words...
The original amount of money that is invested, borrowed, or loaned.
Set up a proportion for this problem. Do not solve.
Find 32% of 180
32 x
___ = ____
100 180
If the original quantity is 35 and the new quantity is 19, is this a percent increase or percent decrease?
decrease
markdown = $5
m = 0.25 x 20
What does the word principal mean?
The initial amount of money invest or borrowed is called the principal
define 'percent change' in your own words...
Measures the accuracy between the measured value and the true value, expressed as a percentage of the true value.
Find 7% of 326.
part = percent x whole
x = 0.07 x 326
The number 360 is increased by 25%. The result is then decreased by 50%. What is the final number?
225
30% markup
I = p x r x t
I = $200 x 0.06 x 6
I = $72
define 'interest rate' in your own words...
A percent used to calculate interest on the principal
What is 12% of 5,280
633.6
Explain in your own words how finding percent error is similar to percent change
Finding percent error and percent change are similar because both compare the difference between two values to an original or reference value.
error -->
predicted - actual = difference
change -->
new - old = difference
Write the letter the expression is labeled with on your team board, if that expression can be used to find the price of a $400 telescope after a 32% markup.
A) 400 • 0.32
B) 400 • 3.2
C) 400 • 1.32
D) 400 + 400(0.32)
E) 400 • 400(1.32)
C) 400 • 1.32
D) 400 + 400(0.32)
Jordan took out a loan to help pay for college. The loan charges 5% simple interest per year. After 4 years, Jordan will have paid $600 in interest. How much money did Jordan originally borrow?
I= p x r x t
600 = p x 0.05 x 4
p = $3,000