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Alex787 [66]
2 years ago
9

Two fifths of the students in your class are in Band. Of these, one fourth play the saxophone. What fraction of your class plays

the saxophone
Mathematics
2 answers:
ozzi2 years ago
5 0
The fractions of the class is 1/4 because 1/4+1/5=2/5 and 2/5 of the class is in band.
amm18122 years ago
5 0

Answer:

\frac{1}{10}

Step-by-step explanation:

Fraction of students in class is in band = 2 ÷ 5th

And, it is also given that 1 ÷ 4th student of band is play Saxophone.

Thus, Total Saxophone player in class is (Student in Band) × (Student in band also play Saxophone)

⇒ Total Saxophone player in class = \frac{2}{5} \times \frac{1}{4} = \frac{2}{20} = \frac{1}{10}

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A pet store owner, Byron, needs to determine how much food he needs to feed the animals. Byron knows that he needs to order the
Brums [2.3K]

Answer:

He needs to buy 120 packages of dod food.

Step-by-step explanation:

b - bird food

h - hamster food

d - dog food

c - cat food

b + h + d + c = 600

b = h (bird food is the <em>same</em> as hamster food)

b = 4 d (bird food is <em>4 times</em> dod food)

c = d/2 (cat food is <em>half</em> dog food)

Total of packages ordered.

b + b + d + c = 600

4d + 4d + d + d/2 = 600

4 d + 4 d + d + d = 600. 2

10 d = 1.200

d= 120 .........the amount of dog food packages.

     

6 0
2 years ago
Mia had $22. Then she started to receive $4 a week as an allowance. She plans to save all of her money for a bicycle and draws a
saw5 [17]

Answer:

first y then x because y represents 22 and x represents 4 a week.

8 0
2 years ago
(8.218+9.93)+(17.782+0.07)
Licemer1 [7]
First, using the order of operations(PEMDAS), you would solve what is inside the parenthesis. 
<span>(8.218 + 9.93) + (17.782 + 0.07)
(</span>18.148) + (17.852)
18.148 + 17.852

Now, all you would have to do is add the two sums. 
18.148 + 17.852 = <span>36
</span>
The answer would be 36. 

I hope this helps!

5 0
2 years ago
Identify the volume of a cone with base area 64π m2 and a height 4 m less than 3 times the radius, rounded to the nearest tenth.
melomori [17]
V=basearea times 1/3 times height
basearea=6<span>4π m2
hmm, they try to make it difficult

basearea=circle=pir^2
pir^2=64pi
divide by pi
r^2=64
sqrt
r=9

h is 4 les than 3 time r
h=-4+3(8)
h=-4+24
h=20

v=1/3*64pi*20=1280pi/3 m^3=1350.4

C
</span>
4 0
2 years ago
Use a normal approximation to find the probability of the indicated number of voters. In this case assume that 150 eligible vote
alexdok [17]
The number of people who voted follows a binomial distribution with probability of having voted p=0.22 and n=150 subjects, which means the approximating normal distribution should have mean np=33 and standard deviation \sqrt{np(1-p)}\approx5.07.

With the continuity correction, you have

\mathbb P(X
8 0
2 years ago
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