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Ray Of Light [21]
3 years ago
8

A shoekeeper uses this formula to work out the

Mathematics
1 answer:
ElenaW [278]3 years ago
3 0

Answer:

12.6

Step-by-step explanation:

1.8X7

7x1=7

0.8x7=5.6

7+5.6=12.6

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zaharov [31]
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3 0
3 years ago
Look at the photo pick A B C D either one explanation not needed thank you! &lt;3
elena55 [62]

Answer:

A?

Step-by-step explanation:

8 0
3 years ago
If you is 8 , what is the value of x?
aev [14]
What is the equation???

6 0
3 years ago
The fitness center held a weight loss competition in which 128 people participated. The amount of weight loss was normally distr
iris [78.8K]

Answer:

37

Step-by-step explanation:

Given :

Sample size, n = 128

Mean, μ = 18

Standard deviation, σ = 5.4

Number of people who lost atleast 15 pounds :

The Zscore = (x - μ) / (σ)

Zscore = (15 - 18) / 5.4

Zscore = - 3 / 5.4

Zscore = - 0.5555

P(Z < - 0.555) = 0.28945

Number of people who lost atleast 15 pounds :

0.28945 * 128 = 37.0496

= 37 people

3 0
3 years ago
Please help me im not good at maths :(((
lapo4ka [179]

Answer:

A) 11% B) 60

Step-by-step explanation:

(for A) if you add all the "Frequency" it adds up to 100, so we don't need to do any maths for that because we already have our 100% right there. So less maths to do because if that right there is already the whole, then the frequency of it is the % out of 100%

(for B) If you take your calculator and do 12 x 500, you get 6,000, press the "%" button and it gives you the percent of what that probability of getting 6 after rolling 500 times with its sent frequency

(took me a minute to learn this this for you... by that i mean i messed around with my calculator for like 3 minutes) Hope this is right.

3 0
3 years ago
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