Question

b. list two different combinations of coins, each with a value of 150% of a dollar.
$19.32
10

Explanation:

Step1: Calculate 150% of a dollar

150% of a dollar means we need to find $1.50$ (since $150\%=\frac{150}{100} = 1.5$ and $1.5\times1 = 1.5$ dollars, which is 150 cents).

Step2: Find first combination

We can use a dollar coin (100 cents) and a half - dollar coin (50 cents). $100 + 50=150$ cents or $1 + 0.5 = 1.5$ dollars.

Step3: Find second combination

We can use three half - dollar coins. Since each half - dollar is 50 cents, $3\times50 = 150$ cents or $3\times0.5=1.5$ dollars. We can also use 15 dimes (since each dime is 10 cents, $15\times10 = 150$ cents) or 1 dollar coin and 5 dimes (100+5\times10 = 150 cents) etc. Let's take 1 dollar coin and 5 dimes as the second combination. 1 dollar coin is 100 cents and 5 dimes: $5\times10 = 50$ cents. $100 + 50=150$ cents.

Answer:

Combination 1: 1 dollar coin and 1 half - dollar coin.
Combination 2: 1 dollar coin and 5 dimes. (Other valid combinations are also acceptable, e.g., 3 half - dollar coins, 15 dimes etc.)