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nadya68 [22]
3 years ago
10

Maria purchase some make up from an online store she receive a 20% discount do you mount a discount is 6.70 how much was the ori

ginal price of her makeup
Mathematics
1 answer:
olga_2 [115]3 years ago
5 0

Answer:

$33.50

Step-by-step explanation:

To find the original purchase price, write a proportion and solve.

A proportion is an equation where two ratios are set equal.

\frac{6.70}{y}= \frac{20}{100}

To solve for y, cross multiply the numerator and denominator of each fraction.

6.70(100) = 20y

670 = 20y

33.5 = y

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If an independent-measures design is being used to compare two treatment conditions, then how many different groups of participa
Serhud [2]

Answer:

2 groups and 1 score for each participant

Step-by-step explanation:

An independent measures design is a defined as a research method whereby multiple experimental groups are examined and the participants will only be in one group. Now, each participant will only be affected by one condition of the independent variable during the experiment.

In the question given, we want to use the method I just described to compare two treatment conditions.

This means that there will be two groups and each participant in both groups will be assigned one score.

7 0
3 years ago
Question 1 point
ludmilkaskok [199]

Answer:

h = 23 hours

Step-by-step explanation:

Take 143.75 and divide it by 6.25

143.75/6.25 = 23

23 is the answer

4 0
3 years ago
Read 2 more answers
What is 67,234.63992 rounded to the nearest thousandth
GuDViN [60]
67,234.63992 to the nearest thousandth is 67,234.64.
7 0
3 years ago
Read 2 more answers
George is reading a book.On Monday he read 1/3 of the book. On Tuesday he reads three-tenths of the remaining pages. He has 35 p
solniwko [45]

Answer:

Step-by-step explanation:

m=p/3

t=(3/10)(1-1/3)

t=(3/10)(2/3)=p/5

p-p/3-p/5=35

(15p-5p-3p)/15=35

7p/15=35

7p=525

p=75

So the book has 75 pages.

3 0
3 years ago
A sleep time of 15.9 hours per day for a newborn baby is at the 10h percentile of the distribution of sleep times for all newbor
Nuetrik [128]

Answer:

option (D) 16.5

Step-by-step explanation:

Data provided:

Sleep time of , X = 15.9 is at the 10th percentile

Standard deviation, σ = 0.5  hour

also,

10th percentile of normal distribution is

Z = F⁻¹(0.10)

or

Z = - 1.28  (Using Standard Normal distribution)

Now,

\\Z=\frac{X-\mu}{\sigma}

or

X = μ + ( σ × Z )

or

μ = X - ( σ × Z )

on substituting the respective values, we get

μ = 15.9 - 0.5 × (-1.28)

or

μ = 16.5

Hence, the correct answer is option (D) 16.5

8 0
3 years ago
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