Question

consumer math, 2nd ed.
exam 4 units 8 - 10
savanah grace cleveland 859138 12
multiple choice: completely fill in the circle next to the best answer. use a number - two pencil
only. do not make stray marks on this sheet.

1. louden wainwright is preparing for his visit to london where he plans to rely mostly on \contactless\

payment. still, he wants to take some cash with him. if the exchange rate is 1 us $ = 0.78 gbp £ and
the exchange fee $7.50, how many british pounds will $100 purchase?
○78 £ ○72.15 £ ○64.65 £ ○none of these

1. carrie anns pixies are lynnes favorite chocolates. her husband, alastair, bought her 10 oz. of the

candy for valentines day. they were on sale for $19.99/lb. with a combined sales tax rate of 7.72%,
what did alastair pay? (round to the nearest penny.)
○$11.53 ○$12.49 ○$13.46 ○none of these

1. jim l.s bread recipe requires 3 cups of flour, but he only has 2 cups presently. he decided to make a

smaller loaf adjusted to the amount of flour available. if his recipe calls for 1 tablespoon of yeast,
what is the adjusted amount of yeast jim will need?
○2 teaspoons ○1/2 tablespoon ○1/3 tablespoon ○none of these

1. which equality below is false?

○mmxx = 2020 ○ccclxxxvvviii = 498
○mcm = 1900 ○none of these

1. sharon rose discovered some old bibles in the church basement. their publication dates were

mdccclx, mcml, mdcxl, and mdccx. which of these dates represents the oldest bible?
○mdccx ○mcml ○mdcxl ○mdccclx
use the table at the right to answer questions 6 - 9.

1. levi (single) computed his taxable income as $30,400. what is the

amount of his tax?
○$3,331 ○$3,337 ○$3,425 ○$3,431

1. irene knight is married, but she will file taxes separately from her

husband. her taxable income is $30,121. what is her tax?
○$3,175 ○$3,301 ○$3,395 ○none of these

1. jack and his wife, jill, file their taxes jointly. their combined earnings

came to $44,282, and they used the standard deduction of $13,850.
what was their taxable income?
○$30,432 ○$44,282 ○$50,432 ○none of these

1. how much tax did jack and jill (#8) owe?

○$3,337 ○$3,211 ○$3,431 ○none of these

Explanation:

Step1: Calculate the amount of money available for exchange

The total amount of money is \( \$100 \), and the exchange fee is \( \$7.50 \). So the amount of money available for exchange is \( 100 - 7.50=\$92.5 \).

Step2: Calculate the amount of British pounds

The exchange rate is \( 1\ US\$ = 0.78\ GBP\ £ \). So the amount of British pounds is \( 92.5\times0.78 = 72.15\ £ \).

Step1: Convert ounces to pounds

Since \( 1\ lb = 16\ oz \), then \( 10\ oz=\frac{10}{16}=\frac{5}{8}\ lb \).

Step2: Calculate the cost before tax

The price per pound is \( \$19.99 \), so the cost before tax is \( 19.99\times\frac{5}{8}=\$12.49375 \).

Step3: Calculate the cost after tax

The sales - tax rate is \( 7.72\%=0.0772 \). The cost after tax is \( 12.49375\times(1 + 0.0772)=12.49375\times1.0772\approx\$13.46 \).

Step1: Set up a proportion

Let \( x \) be the adjusted amount of yeast. The ratio of flour in the recipe is \( \frac{2}{3} \). Since the amount of yeast should be in proportion to the amount of flour, we have \( x=\frac{2}{3}\times1 \) tablespoon.

Step2: Convert tablespoons to teaspoons

Since \( 1\) tablespoon \( = 3\) teaspoons, \( \frac{2}{3}\) tablespoon \( = 2\) teaspoons.

Step1: Convert Roman numerals

• \( MMXX = 1000 + 1000+10 + 10=2020 \)
• \( MCM = 1000+(1000 - 100)=1900 \)
• \( CCCLLLXXXVVVIII=300 + 30+80 + 8=418

eq498 \)

Answer:

B. \(72.15\ £\)