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choli [55]
3 years ago
14

How many positive integers less than 250 are multiples of 5, but not multiples of 10?

Mathematics
2 answers:
SashulF [63]3 years ago
8 0

Answer:

Step-by-step explanations: sometimes 5 times (number) is 250 but in this case your teacher did not tell you to multiply it by 10 but instead multiplying it by 5

oksian1 [2.3K]3 years ago
4 0

Answer:

25

Step-by-step explanation:

Positive integers less than 250 are 1, 2, 3, ..., 248, 249.

Positive multiples of 5 that are not multiples of 10 are integers than end in 5.

5, 15, 25, 35, ...

In each group of 10 consecutive integers, 1 through 10, 11 through 20, etc. there is one integers ending in 5. From 1 to 250, there are 25 groups of 10 consecutive integers, so there are 25 integers that end in 5.

Answer: 25

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What is the coordinates of {2, 1} and {2, 4}?
blondinia [14]
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7 0
3 years ago
a hat contains 3 blue and 5 black tickets. if one ticket is chosen at random from the hat what is the probability that it is blu
Nikitich [7]

Answer:

3/8

Step-by-step explanation:

3/(3 + 5) = 3/8

3 0
2 years ago
2x+8y = 6<br> 15x + 20y = 15
Likurg_2 [28]

Answer:

The solution is (0, 3/4)

Step-by-step explanation:

Please copy and share the instructions.  Here they are:  Solve the following system of linear equations.

Both of the equations can be reduced (simplified):

2x+8y = 6            =>  x + 4y = 3

15x + 20y = 15     => 3x + 4y = 3

Let's use the elimination by addition and subtraction method.  Multiply the first equation by -1, obtaining

                                 -x - 4y = -3

Add the second       3x + 4y = 3

equation to the

first.

We get:                       2x = 0.

Thus, x = 0.  Substituting 0 for x in the 1st original equation yields:

2(0) + 8y = 6.  Then y = 6/8, or y = 3/4.

The solution is (0, 3/4).

4 0
3 years ago
Is (3,2) a solution of -8x-2y&lt;6
BartSMP [9]

Answer:

yes

Step-by-step explanation:

-8x-2y<6

put in x and y and see if it is less than 6

-8(3) -2(2) <6

-24 -4 <6

-28 <6

yes

it is a solution

8 0
3 years ago
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