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choli [55]
2 years ago
7

HELP ASAPPP

Mathematics
1 answer:
goldenfox [79]2 years ago
5 0

Answer:

Kai suggested the best way to produce a random sample that is not biased

Step-by-step explanation:

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Please help me this is very important
Virty [35]

Answer:

a. 24.5 $

b. 10.5 $

c. 7/10

Step-by-step explanation:

Given the original price of the sweater is: $ 35.

a) If you pay only $ \frac{7}{10} $ of the price, then the actual amount paid is: $ \frac{7}{10} \times 35 = \frac{49}{2} $ = 24.5 $.

b) Total amount Saved = Actual price - Price you paid

$ \implies $ Total Amount Saved = $ 35 - \frac{49}{2} $

$ = \frac{21}{2} $ = 10.5 $.

c) Fraction of the original price saved = Total amount Spent/Actual Price

$ \implies $ Total amount Saved = $ \frac{49}{2(35)} $

$ = \frac{49}{70} $ = $ \frac{7}{10} $

3 0
3 years ago
On a particular day, the wind added 4 miles per hour to Alfonso’s rate when he was cycling with the wind and subtracted 4 miles
Greeley [361]

d = r · t ⇒ t = d/r

going

t = 54/(r + 4)

coming

t = 30/(r - 4)

54/(r + 4) = 30/(r - 4) times are equal

54(r - 4) = 30(r + 4) product means/extremes

54r - 216 = 30r + 120 distribute

24r - 216 = 120 subtract 30r from both sides

24r = 336 add 216 to both sides

r = 14 divide both sides by 24

Alfonso bikes at 24 mph.

8 0
3 years ago
X is a number from the set [3,5,6] and y is a number from the set [4,7,8,9]. If xz/y is an integer and z is a positive integer,
UNO [17]

The smallest possible value of z is the denominator of the reduced fraction x/y. We note the prime factors of the members of set y are

... 2², 7, 2³, 3²

so if there are any even members of set x, the fraction can be reduced to something divided by 2. The number 6 in set x is even, so we have

... 6z/4 = 6·2/4 = 3 (an integer) when z=2

The lowest possible value of z is ...

... B) 2

4 0
4 years ago
growth of a particular type of plant. He is testing the effects of four growth factors: lighting, age, temperature, and humidity
GREYUIT [131]

The level of each growth factor is an illustration of a combination

There are 90 ways of combining one level from each growth factors

<h3>How to determine the number of combinations?</h3>

From the complete question (see attachment), we have the number of levels in each growth factor is:

Lighting = 3

Age = 5

Temperature = 2

Humidity = 3

So, the number of combination (n) is:

n = 3 * 5 * 2 * 3

n = 90

Hence, there are 90 ways of combining one level from each growth factor.

Read more about combination at:

brainly.com/question/11732255

#SPJ1

6 0
2 years ago
If f(5) = 2(5) - 7, which function gives f(x)?
Tresset [83]

Answer:

f(x) = 2x-7 is the function

7 0
3 years ago
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