Mathematics, 22.12.2019 22:31, kanamek

Mrs. robinson bought a novel at a bookstore on sale for 20% off its regular price of $29.99. mr. chang bought the same novel at a different bookstore for 10% off its regular price of $25. which person received the better discount . explain

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answered: yfnal3x

Mr. Chang received the better discount

Step-by-step explanation:

Mrs. Robinson bought a novel at a bookstore on sale for 20% off its regular price of $29.99

The price of the novel at a bookstore = 29.99 -(20% × 29.99)

= 29.99 - (0.20 × 29.99)

= 29.99 - 5.998

= $23.99

Mr. Chang bought the same novel at a different bookstore for 10% off its regular price of $25.

The price of the novel at a different bookstore = 25 - (10% × 25)

= 25 - (0.10 × 25)

= 25 - 2.5

= $22.50

Mr. Chang bought the novel at the price of $22.50 and Mrs. Robinson bought the same novel at the price of $23.99.

Therefore, Mr. Chang received the better discount.

answered: Guest

Hello!

the answer is:

$\frac{3^{4} }{3^{1}}=3^{3}$

why?

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

$\frac{a^{m} }{a^{n} }=a^{m-n}$

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

$\frac{3^{4} }{3^{1}}$

then, calculating we have:

$\frac{3^{4} }{3^{1}}=3^{4-1}=3^{3}$

hence, the answer is:

$\frac{3^{4} }{3^{1}}=3^{3}$

have a nice day!

answered: Guest

step-by-step explanation:

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Mrs. robinson bought a novel at a bookstore on sale for 20% off its regular price of $29.99. mr. cha...