How do u solve number 2-3
1 answer:
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Answer:
a) He substituted 0.8 instead of 0.08.
b) $264
Step-by-step explanation:
From the question, the principal is p= $275, the rate is r=0.08, and the time is t=12 years.
We substitute into the formula to get:
a) The mistake is that, he substituted 0.8 instead of 0.08.
b) The correct amount is $264
Start by putting into improper fractions.
- 1 2/3 = - 5/3
- 2 1/5 = - 11/5
Now stack the fractions like this.
Here's the key part (or one of them). Cancel the minus signs. Since there are 2 of them they become a plus.
Now invert the 11/5. That means turn it upside down. Put the 5 in the numerator and 11 in the denominator. Multiply by it by the top fraction.
When you do this, you just multiply top by top and bottom by bottom
- 1 2/3 = - 5/3
- 2 1/5 = - 11/5
Now stack the fractions like this.
Here's the key part (or one of them). Cancel the minus signs. Since there are 2 of them they become a plus.
Now invert the 11/5. That means turn it upside down. Put the 5 in the numerator and 11 in the denominator. Multiply by it by the top fraction.
When you do this, you just multiply top by top and bottom by bottom