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ruslelena [56]
3 years ago
10

What is the sum of -2/3 and -4/6? i just want the answer

Mathematics
1 answer:
ddd [48]3 years ago
3 0

Answer: A

Step-by-step explanation:

-2/3+(-4/6)

= -2/3 -2/3

=(-2-2)/3

=-4/3

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10n

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Please help me with this question!!
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Mabye 7?

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5 of 8
aleksandr82 [10.1K]

Given:

The mean age of 5 people in a room is 26 years.

A person enters the room. The mean age is now 33.

To find:

The age of the person who entered the room.

Solution:

Formula for mean:

\text{Mean}=\dfrac{\text{Sum of observations}}{\text{Number of observations}}

The mean age of 5 people in a room is 26 years.

26=\dfrac{\text{Sum of ages of 5 people}}{5}

26\times 5=\text{Sum of ages of 5 people}

130=\text{Sum of ages of 5 people}

The mean age is now 33. It means, the mean age of 6 people is 33.

33=\dfrac{\text{Sum of ages of 6 people}}{6}

33\times 6=\text{Sum of ages of 6 people}

198=\text{Sum of ages of 6 people}

Now, the age of the person who entered the room is

Required age = Sum of ages of 6 people - Sum of ages of 5 people

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                       = 68

Therefore, the age of the person who entered the room is 68 years.

6 0
3 years ago
103.561 + 102.327 PLZ ANSWER ASAP
KengaRu [80]

the answer is 205.888


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a store is having a clearance sale where merchandise on the sales racks is reduced by 80% from the original. if a jacket was ori
posledela

The sales price is $15.2

Step-by-step explanation:

Given,

Discount = 80%

Original price = $76

Discount price = 80% of original price

Discount\ price=\frac{80}{100}*76\\Discount\ price=\frac{6080}{100}\\Discount\ price=\$60.8

Sale's price = Original price - Discount price

Sale\ price= 76-60.8\\Sale\ price= \$15.2

The sales price is $15.2

Keywords: Subtraction, percentage

Learn more about subtraction at:

  • brainly.com/question/8280736
  • brainly.com/question/8301701

#LearnwithBrainly

8 0
3 years ago
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