The original price p of an item less a discount of 15%

Mathematics

2 answers:

Snowcat [4.5K]3 years ago

7 0

P-.15p this is the expression for cost after discount

and its just .15p for just the discount

cestrela7 [59]3 years ago

5 0

Answer:

p - (0.15p)

Step-by-step explanation:

The original price of an item = p

discount rate = 15% = $\frac{15}{100}$ = 0.15

discount price = 0.15 × p

Discounted price of the item = p-(0.15p)

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If f(1) = 1 and f(n) = -3f(n-1) then find the value of f(5).

baherus [9]

Answer:

f(5)=-12

Step-by-step explanation:

f(5)=-3*f(5-1)

f(5)=-3*(4)

f(5)=-12

Hope this helps

8 0

3 years ago

Read 2 more answers

A researcher wished to compare the effect of two stepping heights (low and high) on heart rate in a step-aerobics workout. A col

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Answer:

The answer is "between 0.10 and 0.05".

Step-by-step explanation:

For sample 1:

$n_1 = 25\\\\\bar{x_1} = 90.00\\\\ s_1 = 9\\\\$

For sample 2:

$n_2 = 25\\\\ \bar{x_2} = 95.08\\\\ S_2 = 12\\\\$

Calculating the null and alternative hypotheses:

$H_O : \mu_1 = \mu_2 \\\\ H_Q : \mu_1$

Calculating the test statistic:

$Z= \frac{90-95.08}{ \sqrt{\frac{9^2}{25}+\frac{12^2}{25}}} \\\\ =\frac{-5.08}{ \sqrt{\frac{81}{25}+\frac{144}{25}}}\\\\=\frac{-5.08}{ \sqrt{\frac{81+144}{25}}}\\\\=\frac{-5.08}{ \sqrt{\frac{225}{25}}}\\\\=\frac{-5.08}{ \frac{15}{5}}\\\\=\frac{-5.08}{3}\\\\= -1.693$