2 years ago

By selling goods for $168, a profit of 12% was made by a merchant . How much did the goods cost him ?

Mathematics

1 answer:

stellarik [79]2 years ago

5 0

Answer:

$147.84

Step-by-step explanation:

168 * 0.12 = 20.16

168-20.16 = 147.84

You might be interested in

Given pre-image ABCDE. Which of the transformations resulted in image Point A'?

mihalych1998 [28]

A(x, y) → (x - 3, y + 1)

8 0

2 years ago

Type the correct answer in the box. Round your answer to two decimal places.

Goshia [24]

Answer:

39.3701 inches in a meter

4 0

2 years ago

A clinical test on humans of a new drug is normally done in three phases. Phase I is conducted with a relatively small number of

navik [9.2K]

Answer:

A clinical test on humans of a new drug is normally done in three phases. Phase I is conducted with a relatively small number of healthy volunteers. For example, a phase I test of a specific drug involved only 7 subjects.

Step-by-step explanation:

6 0

2 years ago

Susan works as a hostess where she makes $8.75 per hour. She also babysits and earns $10.00 per hour. Last week she made $165.00

True [87]

Answer:

6 hours as a babysitter and 12 hours as a hostess

5 0

2 years ago

Read 2 more answers

Find the size of each of two samples (assume that they are of equal size) needed to estimate the difference between the proporti

lesya [120]

Answer:

a) the sample size (n) = 156.25≅ 156

Step-by-step explanation:

Step1 :-

Given the two sample sizes are equal so $n_{1} =n_{2} = n$

Given the standard error (S.E) = 0.04

The standard error of the proportion of the given sample size

$S.E = \sqrt{\frac{pq}{n} }$

Step 2:-

here we assume that the proportion of boys and girls are equally likely

p= 1/2 and q= 1/2

$S.E = \sqrt{\frac{p(1-p)}{n} } \leq \frac{\frac{1}{2} }{\sqrt{n} }$

$\sqrt{n} = \frac{\frac{1}{2} }{S.E}$

squaring on both sides, we get

$n = \frac{1}{(2X0.04)^{2} }$

on simplification, we get

n= 156.25 ≅ 156

sample size (n) = 156

verification:-

$S.E = \sqrt{\frac{pq}{n} }= \sqrt{\frac{1}{4X156} } =\sqrt{0.0016}$

Standard error = 0.04

4 0

2 years ago