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3 years ago

Which is NOT an example of the commutative property of addition?

Mathematics

1 answer:

sp2606 [1]3 years ago

3 0

Answer:

x - 13 = 13 - x

Step-by-step explanation:

The commutative property of addition is a+b=b+a

The third equation is the only one not following the rule. It states that a-b=b-a, whoich is not true.

For exaple, 2-1 is not equal to 1-2.

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Katie Cole purchased a mountain bike with an installment loan that has an APR of 14%. The mountain bike sells for $762. The stor

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Answer-

Finance charge is $99

Solution-

Price of mountain bike = $762

The store's financing requires a 15% down payment, so the present value of annuity will be,

$762-(762\times \frac{15}{100})=\$647.7$

We know that,

$\text{PV of annuity}=P[\frac{1-(1+r)^{-n}}{r}]$

$PV\ of\ annuity=647.7,\\\\P=?,\\\\r = 14\%\ annually=\frac{14}{12}\%\ monthly=\frac{14}{1200}\ monthly\\\\n=24\ months$

Putting the values,

$\Rightarrow 647.7=P[\dfrac{1-(1+\frac{14}{1200})^{-24}}{\frac{14}{1200}}]$

$\Rightarrow P=\dfrac{647.7}{\frac{1-(1+\frac{14}{1200})^{-24}}{\frac{14}{1200}}}$

$\Rightarrow P=\dfrac{647.7}{20.8277}$

$\Rightarrow P=\$31.10$

With a monthly payment of this, he will be paying in 24 months will be,

$=31.10\times 24=\$746.4$

Then,

$\Rightarrow \text{Total payment}=\text{Down payment+Monthly payment}=(762\times \frac{15}{100})+(746.4)=\$861$

The extra amount he will be paying,

$=861-762=\$99$

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4 years ago

Lori rented a car for one day. The daily rental rate was $12.50 plus 25 cents per mile. The total cost of her rental was $46. Ho

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46=12.5+.25x
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x=134
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3 years ago

Brian is looking at a statue in Bruso park from 8 meters away. If the distance between the top of the statue to Brian's head is

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Answer:

Step-by-step explanation:

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