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allochka39001 [22]
3 years ago
9

a scarf is originally priced at $30.00. it is then discounted by 25%. several days later, it is discounted 10% off the new price

. is the cost of the scarf the same as if the store had taken 35% off the original $30?
Mathematics
1 answer:
jeka943 years ago
8 0
No. 
a. take 35% off 30 =19.5
b. first take 25% off 30 = 22.5, then take 10% off 22.5 = 20.25
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75c- 300 - 35 c =25c + 15c + 200
GarryVolchara [31]

Answer:

False

Step-by-step explanation:

40c - 300 = 40c + 200

-300 = 200

false

4 0
2 years ago
Help pls! I need help to finish :(<br> No Links!
atroni [7]
The answer is 7.5.
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5 0
2 years ago
A random sample of 11 fields of rye has a mean yield of 20.1 bushels per acre and standard deviation of 7.66 bushels per acre. D
Lady bird [3.3K]

Answer:

17.1≤x≤23.1

Step-by-step explanation:

The formula for calculating the confidence interval is expressed as;

CI = x ± z*s/√n

x is the mean yield = 20.1

z is the 80% z-score = 1.282

s is the standard deviation = 7.66

n is the sample size =  11

Substitute

CI = 20.1 ± 1.282*7.66/√11

CI = 20.1 ± 1.282*7.66/3.3166

CI = 20.1 ± 1.282*2.3095

CI =  20.1 ±2.9609

CI = (20.1-2.9609, 20.1+2.9609)

CI = (17.139, 23.0609)

hence the required confidence interval to 1dp is 17.1≤x≤23.1

8 0
3 years ago
What are the pattern conbination between these number 18 48 88 128 178 38 68
valentina_108 [34]
18+30=48
48+40=88
88+40=128
128+50=178

Thats all i found so far in the pattern
30,40,40,50
then it drops
by 140 then adds by 30..

I dont know how else to explain it
7 0
3 years ago
Need help with math problems
mrs_skeptik [129]
Ok like what kind of math problems
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