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2 years ago

HELLPPP!!! Please

2 answers:

jeka942 years ago

6 0

Well 5 pieces divided by 2 weeks would average a total of 2.5 pieces a week.

Take that 2.5 pieces and multiply by 10.

25 pieces

igor_vitrenko [27]2 years ago

4 0

The answer is 25 pieces after 10 weeks of flute lessons.

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Share £405 in the ratio 4:11

Advocard [28]

I think the answer to your question is 15 hope this helps

6 0

2 years ago

Suppose a normal distribution has a mean of 62 and a standard deviation of4. What is the probability that a data value is betwee

saw5 [17]

SOLUTION

From the given data the mean is 62 and standard deviation is 4

It is required to find the probability that a data value is between 57 and 62

That is:

$P(57\lt x\lt65)$

The z scores is calculated using:

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

Using the x values it follows:

$z=\frac{57-62}{4}=-1.25$

Also,

$z=\frac{65-62}{4}=0.75$

Thus the required probability is:

$P(-1.25The proability is:[tex]P(-1.25This can be expressed as percentage as:[tex]P(-1.25\lt z\lt0.75)=66.8\%$

Therefore the correct option is C

8 0

11 months ago

Among 35 students in a class, 20 of them earned A's on the midterm exam, 13 earned A's on the nal exam, and 12 did not earn A's

enyata [817]

Answer:

The correct answer is " $\frac{2}{7}$ ".

Step-by-step explanation:

According to the question,

Number of students,

= 35

A ! mid term A,

$n(A) = 20$

B : final A,

$n(B) = 13$

Didn't start,

$n(A^c \cap B^c) = 12$

Now,

⇒ $n(A \cup B)=35-12$

$=23$

then,

⇒ $n(A \cup B)=20+13-23$

$=10$

hence,

The probability will be:

⇒ $P(A \cap B)=\frac{10}{35}$

⇒ $=\frac{2}{7}$

7 0

2 years ago

Complete the equation and tell which property you used for 16+31=31+

blagie [28]

16. It's basically the problem you started with, but just reversed.

5 0

2 years ago

36 is the same as _____ radians.

Over [174]

The formula is (degree)x(pi÷180)
36 x pi ÷ 180
0.63 rad

6 0

2 years ago

Read 2 more answers