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mrs_skeptik [129]
3 years ago
15

Karen correctly answered 85% of the questions on her math test. If she misses 6 problems how many questions were on the test?

Mathematics
1 answer:
Brums [2.3K]3 years ago
8 0
100 - 85 =  15%

15% = 6
1% = 0.4
100% = 0.4 x 100 = 40

Answer: There were 40 questions.
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A set of average city temperatures in July are normally distributed
Archy [21]

Answer:

a) 59.87%

Step-by-step explanation:

Given that the mean temperature (μ) = 23.5°C and the standard deviation (σ) is 2 °C.

The z score is used in statistics to measure number of standard deviation by which the raw score is above or below the mean value, It is calculated using the equation:

z=\frac{x-\mu}{\sigma}

The average temperature of the City of Van Nuys is 23 degrees. The z score is

z=\frac{x-\mu}{\sigma}=\frac{23-23,5}{2} =-0.25

P(x > 23) = P(z > -0.25) = 1 - P(z < -0.25) = 1 - 0.4013 = 0.5987 = 59.87%

3 0
3 years ago
Trevor sees eight red birds he sees five more red birds then blue birds how many blue birds does Trevor see
horrorfan [7]

Answer:

3 blue birds

Step-by-step explanation:

To answer this question, simply subtract:

8 - 5 = 3

So, Trevor saw 3 blue birds

Hope this helps!

3 0
4 years ago
a vendor bought n dozen eggs at the rate of 22.6 of the rotating he sold the remaining acts at the rate of 2.50 per act find his
babymother [125]

Answer:

Your question was a bit confusing so I found another related question. You can reference it with your own details.

A vendor bought 10 dozen eggs at the rate of Rs 22 per dozen. Six of the eggs were rotten. He sold the remaining eggs at the rate of Rs 2.50 per egg . Find his profit or loss

Vendor bought 10 dozen eggs which means the vendor bought:

= 10 * 12 eggs

= 120 eggs

6 were rotten and he sold the rest for Rs. 2.50 per egg.

= (120 - 6) * 2.5

= Rs. 285

The amount he spent on the eggs was:

= 10 dozen * 22

= Rs. 220

Profit = 285 - 220

= Rs. 65

7 0
3 years ago
HELP ASAP!!!
Veseljchak [2.6K]
I don't know. This seems tricky. But I do know that the probability would be 1 divided by the probability. So A and D is Incorrect. Theres never really a 50-50 chance with Locker doors so I'm gonna go with C.

I'm not guaranteed this is the answer. But I do Hope it helps. =)

7 0
3 years ago
Read 2 more answers
e.Water has a density of about 0.0361 pounds/cubic inch. You might know that wood floats on water. What can you conclude about t
irina1246 [14]

Answer:

Step-by-step explanation:

the objects which have less density than water will float

and the objects which have more density than the density of liquid will sink in liquid or will not float.

8 0
2 years ago
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