What is A_SIMPLE% of B_SIMPLE? (Round to nearest whole number.)
round((A_SIMPLE * B_SIMPLE) / 100)
A_SIMPLE / 100 \times B_SIMPLE \approx round((A_SIMPLE * B_SIMPLE) / 100)
B_SIMPLE is A_SIMPLE% of what number? (Round to the hundredths place.)
round(((B_SIMPLE * 100) / A_SIMPLE) * 100) / 100
Let x
be the number that B_SIMPLE is A_SIMPLE% of.
A_SIMPLE / 100 \times x = B_SIMPLE
x=B_SIMPLE/A_SIMPLE / 100
x \approxround((B_SIMPLE * 100/A_SIMPLE * 100))/100
person(1) has BANK_MORE dollars in the bank today. Yesterday, he(1) had BANK_FEWER dollars in the bank. By what percentage did person(1)'s bank account increase over the past day? (Round your answer to the nearest hundredth of a percent.)
round(((BANK_MORE - BANK_FEWER) * 10000) / BANK_FEWER) / 100
The bank account grew by BANK_MORE - BANK_FEWER = BANK_MORE - BANK_FEWER
dollars
\frac{BANK_MORE - BANK_FEWER}{BANK_FEWER} \approx round(((BANK_MORE - BANK_FEWER) * 10000) / BANK_FEWER) / 100\%
person(1) has BANK_FEWER dollars in the bank today. Yesterday, he(1) had BANK_MORE dollars in the bank. By what percentage did person(1)'s bank account decrease over the past day? (Round your answer to the nearest hundredth of a percent.)
round(((BANK_MORE - BANK_FEWER) * 10000) / BANK_MORE) / 100
The bank account decreased by BANK_MORE - BANK_FEWER = BANK_MORE - BANK_FEWER
dollars
\frac{BANK_MORE - BANK_FEWER}{BANK_MORE} \approx round(((BANK_MORE - BANK_FEWER) * 10000) / BANK_MORE) / 100\%
person(1) has YEAR_PERCENT_MORE% more money today than he(1) did this time last year. If person(1) has YEAR_THIS dollars today, how many dollars did he(1) have this time last year? (Round to the nearest penny.)
YEAR_LAST
Let x
be the amount of money that he(1) had last year.
x + YEAR_PERCENT_MORE / 100x = YEAR_THIS
(100 + YEAR_PERCENT_MORE) / 100x = YEAR_THIS
x = \frac{YEAR_THIS}{(100 + YEAR_PERCENT_MORE) / 100}
x \approx YEAR_LAST
person(1) {has {breakfast|lunch|dinner}|eats} at a {restaurant|cafe} and the cost of his(1) meal is $BILL_FORMAT. He(1) would like to leave a TIP_PERCENT% tip. What is his(1) total bill including tip?
TOTAL
The tip amount is equal to TIP_PERCENT\% \times \$BILL_FORMAT
.
We can find the tip by first calculating a 10\%
tip and then dividing that number by two. and then multiplying that number by two. and a 5\%
tip, and then adding those two numbers together.
To calculate a 10\%
tip, move the decimal point in \$BILL_FORMAT
one place to the left.
10\% \times \$BILL_FORMAT = \$TIP_TEN_PERCENT
To calculate a 5\%
tip, divide the 10\%
tip amount in half.
5\% \times \$BILL_FORMAT = \$TIP_TEN_PERCENT \div 2 = \$TIP_FIVE_PERCENT
.
To calculate a 20\%
tip, multiply the 10\%
tip amount by two.
20\% \times \$BILL_FORMAT = \$TIP_TEN_PERCENT \times 2 = \$TIP_AMOUNT_FORMAT
.
Adding the two amounts together gives us \$TIP_TEN_PERCENT + \$TIP_FIVE_PERCENT = \$TIP_AMOUNT_FORMAT
.
The cost of the meal plus the amount of the tip will equal the total bill amount.
\$BILL_FORMAT + \$TIP_AMOUNT_FORMAT = \$TOTAL_FORMAT
.
The total cost of the bill is \$TOTAL_FORMAT
.