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2 years ago

Please help me!!!!!!!!!!!!!!

Mathematics

1 answer:

Lera25 [3.4K]2 years ago

7 0

The total amount of people who ordered cold drinks is 8 + 12 + 5 = 25 people.

The amount of people who ordered a cold medium is 12.

To find the percent, divide what is asked for by the total.

12/25 = .48

To convert to a percent, multiply by 100 and put a percent sign on it.

.48 × 100 = 48%

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Seven pieces of rope have an average (arithmetic mean) length of 68 centimeters and a median length of 84 centimeters. If the le

Svet_ta [14]

Answer:

The maximum possible length, in centimeters, of the longest piece of rope is 134 cm

Step-by-step explanation:

Let the seven pieces be a,b,c,d,e,f,g

Average of 7 pieces of ropes =68

$Average = \frac{\text{Sum of all lengths}}{\text{No. of pieces}}$

$68= \frac{\text{Sum of all lengths}}{7}$

$68 \times 7 =\text{a+b+c+d+e+f+g}$

$476=\text{a+b+c+d+e+f+g}$ --A

We are given that the median length of a piece of rope is 84 centimeters.

We arrange the pieces in the ascending order

So, median will be the length of 4th piece

So, d = 84 cm

the length of piece a,b,c will be less than 84 and the value of e,f,g must be greater than or equal to 84

Let us suppose the length of a,b,c be x

Let us suppose the length of e,f be 84

The length of the longest piece of rope is 14 centimeters more than 4 times the length of the shortest piece of rope

So, g = 4x+14

Substitute the value in A

$476=x+x+x+84+84+84+4x+14$

$476=7x+266$

$\frac{476-266}{7}=x$

$30=x$

g = 4x+14=4(30)+14=134

Hence the maximum possible length, in centimeters, of the longest piece of rope is 134 cm

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2 years ago

Tom finished 1/3 of the 30 problems assigned in class. Steven did 3/10 of the problems. Juan finished 20% of the problems. Marcu

RoseWind [281]

Answer: Tom

Step-by-step explanation:

Tom did 1/3 of 30= 10 out of 30

Steven did 3/10 of 30= 9 out of 30

Juan did 20/100 of 30= 6 out of 30

Marcus did 8 out of 30

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3 years ago

Read 2 more answers

4. Solve the inequality.<br>

olga2289 [7]

Answer:

Step-by-step explanation:

Given

- 12 ≤ 2x - 4 < 10 ( add 4 to all 3 intervals )

- 8 ≤ 2x < 14 ( divide all 3 intervals by 2 )

- 4 ≤ x < 7

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2 years ago

Katherine goes to the deli to buy some turkey. Turkey cost $5.28 per pound. Katherine needs to buy 3 1/4 pounds of turkey. How m

Leto [7]

<u /><u />5.28 dollars per pound multiplied by 3.25 pounds is a total of 3.25*5.28=$17.16.

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2 years ago

In triangle ABC, angle BC=4x+4 and angle AC= 6x-14 and angle BC=2x+7. What is BC

kolbaska11 [484]

Answer:

37.5

Step-by-step explanation:

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3 years ago