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polet [3.4K]
3 years ago
7

Energy bars are on sale at 20 bars for $5. How many can you buy for $18?

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

Answser:

72 bars

Step-by-step explanation:

Thy are .25 each

.25 divided by 18.00 = 72

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25 cups of water fits into 2 water dispensers. How much water was in each dispenser?
masya89 [10]

Answer:

12.5 cups of water

Step-by-step explanation:

25 cups of water divided by 2 equals 12.5 cups of water.

6 0
3 years ago
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

                       = 198-130

                       = 68

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

6 0
3 years ago
Sally had Pokémon cards and 3 had spots. She gave 5 away . She now has 7 Pokémon cards left. How many Pokémon cards did she star
vovangra [49]

Answer:

12, right?

Step-by-step explanation:

I think the declaration that three had spots may be a red herring meant to mislead you. If she has 7 after giving away 5, that would mean that in total, there are 12 cards.

3 0
3 years ago
Read 2 more answers
How do you do this question?
IRINA_888 [86]

Answer:

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Step-by-step explanation:

6 0
3 years ago
To simplify (5 + 2)^2 + 7 ÷ 7
Sedbober [7]
Parentheses (brackets/braces) are done first according to the order of operations.
Answer A
7 0
3 years ago
Read 2 more answers
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