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ser-zykov [4K]
3 years ago
10

Pls solve this question

Mathematics
1 answer:
EleoNora [17]3 years ago
3 0

Answer:

4

Step-by-step explanation:

(A+B+C+D) / 4 = 10 .... average=sum/number of item

(A+B+C)/3 = 3D ... average of first 3 (A,B,C) is triple of forth (D)

A+B+C = 9D

(9D+D)/4=10

10D = 40

D = 4

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Pavlova-9 [17]

For this case we must express the following expression algebraically:

<em>"The quotient of b and 2 minus 4 is at least 26"</em>

So we have to:

The quotient of b and 2 minus 4, is represented as:\frac {b} {2-4}

We have different signs subtracted and the sign of the major is placed:

\frac {b} {- 2}

Thus, the expression is written as:

\frac {b} {2-4} \geq26\\\frac {b} {- 2} \geq26\\- \frac {b} {2} \geq26

ANswer:

\frac {b} {2-4} \geq26

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3 years ago
How many solutions does the following system have 3x+2y=1 -9x-6y=3
Sladkaya [172]
Since there are 2 variables there will be 2 answers.
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4 years ago
An amusement park offers two options. Option 1 involves a $10 admission fee plus $0.50 per ride. Option 2 involves a $6 admissio
Art [367]

Answer:

16 rides

Step-by-step explanation:

Option 1 . Admission fee = $10

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Option 2 . Admission fee = $6

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Let no. of rides be x

So, cost of ride according to option 1 = 0.50x

So, total cost after having x rides according to option 1 :

= 10+0.50x  ---1

Cost of ride according to option 2 = 0.75x  

So, total cost after having x rides according to option 2 :

= 6+0.75x  --2

Now to find the beak even point i.e. having the same cost

Equate 1 and 2

10+0.50x=6+ 0.75x

10-6= 0.75x-0.50x

4= 0.25x

\frac{4}{0.25} =x

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Thus for 16 rides , the two options have the same cost .

Hence the break even point is 16 rides

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Delvig [45]

Answer:

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hope i helped

5 0
3 years ago
Read 2 more answers
The table shows the results of a survey given to 150 middle school students about their preference of extra-curricular activitie
Radda [10]

Answer:

D. More students preferred band or chorus than those that preferred football.

Step-by-step explanation:

I can easily tell D is the answer because 16+14=30. This means 30% liked band or chorus and 26% liked football.

<u>Remember the left side of the chart isn't talking about total number </u><u>of</u><u> students. They are talking about percent. </u>

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