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Romashka-Z-Leto [24]
3 years ago
6

Help me i need it within 5 mins

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
4 0
Add them all up and divide by 30. Answer: $55.20.
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In Ms Barclay's classroom 2/5 students play chess. 5/6 of the students play Sudoku. If there are 30 students, in her class how m
Nonamiya [84]

Answer:

12 students play chess

and 25 students play Sudoku

Step-by-step explanation:

There are 30 students in Ms Barclay's classroom.

2/5 students play chess.

i.e. \dfrac{2}{5}\times 30  play chess

i.e. 12 students play chess

5/6 of the students play Sudoku.

i.e. \dfrac{5}{6}\times 30  play Sudoku

i.e. 25 students play Sudoku

Hence, 12 students play chess

and 25 students play Sudoku

6 0
3 years ago
4. Tyrell scored an 80% on his math test. If there were 40 questions, how many did he get correct?​
Neko [114]

Answer:

32 Questions

Step-by-step explanation:

If you do 80% times 40, it equals 32.

7 0
3 years ago
Read 2 more answers
Hello I need help with this immediately please see attached image thank you so much I will give Brainliest
erma4kov [3.2K]

Note that while the figure is made up of rectangle and parallelogram, then the area of this figure

A_{figure}=A_{rectangle}+A_{parallelogram}.

1. The area of rectangle is

A_{rectangle\ ABCF}=AB\cdot BC.

The vertices of rectangle are points A(-2,-2), B(0,-6), C(8,-2) and F(6,2). Then

AB=\sqrt{(-2-0)^2+(-2+6)^2}=\sqrt{4+16}=\sqrt{20}=2\sqrt{5},\\ \\BC=\sqrt{(8-0)^2+(-2+6)^2}=\sqrt{64+16}=\sqrt{80}=4\sqrt{5}.

Therefore,

A_{rectangle\ ABCF}=2\sqrt{5}\cdot 4\sqrt{5}=8\cdot 5=40\ un.^2

2. The area of parallelogram can be calculated using formula

A_{parallelogram\ FCDE}=\text{base}\cdot \text{height}.

The base of parallelogram is segment CD with length

CD=\sqrt{(8-8)^2+(3+2)^2}=\sqrt{25}=5

and the height has length 2 un. Then

A_{parallelogram\ FCDE}=5\cdot 2=10\ un^2.

3. Now

A_{figure}=40+10=50\ un.^2

8 0
3 years ago
Use the strategy to simplify 4\sqrt(576)<br> Write the prime factorization of the radicand.
Ronch [10]
<h3>Answer:   96</h3>

===================================================

Work Shown:

4\sqrt{576}\\\\4\sqrt{2*2*2*2*2*2*3*3}\\\\4\sqrt{(2*2)*(2*2)*(2*2)*(3*3)}\\\\4\sqrt{(2)^2*(2)^2*(2)^2*(3)^2}\\\\4\sqrt{(2*2*2*3)^2}\\\\4\sqrt{24^2}\\\\4*24\\\\96\\\\

6 0
3 years ago
Read 2 more answers
David's gasoline station offers 21 cents off per gallon if the customer pays in cash and does not use a credit card. Past eviden
Hatshy [7]

<u>0.0931</u><u>  is the </u><u>probability </u><u>that at least 10 pay in cash.</u>

What is a probability simple definition?

The ratio of the number of outcomes in an exhaustive set of equally likely outcomes that produce a given event to the total number of possible outcomes.

Using binomial distribution with n= 15, and p = 0.40,

P(8<X<12) = P(X=9)+P(X=10) + P(X=11)

                 = 0.0612+0.0245+0.0074

                  = 0.0931

Therefore,0.0931  is the probability that at least 10 pay in cash.

Learn more about probability

brainly.com/question/11234923

#SPJ4

5 0
2 years ago
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