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kodGreya [7K]
3 years ago
13

How many whole numbers are between 1 and 50 that are divisible by 2?

Mathematics
2 answers:
kupik [55]3 years ago
8 0

Answer:

25

Step-by-step explanation:

The first number in the range 1 - 50 that is divisible by 2 is 2 itself.  Then 4, 6, 8, ....

Here's one way to think and count:

2 \rightarrow 1\\4 \rightarrow 2\\6 \rightarrow 3\\8 \rightarrow 4\\\vdots\\50\rightarrow 25

In the table, the number on the right is <u>half</u> the number on the left.  The numbers on the right are just counting numbers (natural numbers), so there are 25 even numbers between 1 and 50.

vichka [17]3 years ago
5 0
This question is ambiguous.
If you mean between 1 and 50 inclusive (including 1 and 50) the answer is 50/2 = 25
If you mean strictly between 1 and 50 (excluding 1 and 50) then the answer is 24
ie 2, 4, 6, 8, ... 44, 46, 48 and dividing each term by two we see 1, 2, 3, ... 22, 23, 24

To avoid this the question should specify “inclusive” or “exclusive”
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What is the solution to y + 7 = -9 A. y = -16 B. y = -2 C. y = 2 D. y = 16
Helen [10]

Answer:

A. y = -16

Step-by-step explanation:

Hello!

What we do to one side of the equation we have to do to the other.

y + 7 = -9

We have to get y by itself so we have to get rid of the seven by doing the opposite of what it says

The opposite of addition is subtraction so we subtract 7 from both sides

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4 0
3 years ago
In a chest there are some gold coins. Captain takes half the coins. Sally takes a quarter of the coins. There are 3 coins left.
amid [387]

Answer:

<u>There were 12 gold coins in the chest at the start.</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

x = Number of gold coins in a chest

1/2x = Number of gold coins taken by the captain

1/4x = Number of gold coins taken by Sally

3 = Number of gold coins left

2. How many coins were in the chest at the start?

Let's write the following equation to solve for x:

1/2x + 1/4x + 3 = x

2x + x + 12 = 4x (Lowest Common Denominator is 4)

4x - 2x - x = 12 (Like terms)

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<u>There were 12 gold coins in the chest at the start.</u>

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Convert the meters to kilometers:

105,000/1,000 = 105 kilometers

3 0
3 years ago
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