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Salsk061 [2.6K]
2 years ago
13

Help me asap!!! 3(m+7) = 6 (m+2)

Mathematics
1 answer:
siniylev [52]2 years ago
3 0

Answer:

m=3

Step-by-step explanation:

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A number is totally even if all its digits are even. For instance, the numbers 2022 is totally even. How many four-digit totally
dem82 [27]

Answer:

The units digit of our number should be and can be any of 0, 2, 4, 6  (four opportunities).

The tens  digit of our number should be and can be any of 0, 2, 4, 6  (four opportunities).

The hundreds digit of our number should be and can be any of 0, 2, 4, 6, 8  (five opportunities).

The thousands digit of our number should be and can be any of 2, 4, 6  (three opportunities).

So, there are 4*4*5*3 = 16*15 = 240  such 4-digits totally even numbers, satisfying the condition.     ANSWER

Step-by-step explanation:

3 0
2 years ago
todd Has a collection of 8cds and sally has a collection of 18 cds Todd is adding 9cds a month to his collection while sally is
STatiana [176]

Answer:

Step-by-step explanation:

Let's create some equations first.

Say M = number of months, T = Todd and S = Sally.

We know that Todd starts with 8 cds and sally starts with 18 cds.

This means when M= 0,  T = 8 and S = 18

After one month (M = 1), Todd adds 9 cds.

This means can write the following equation:

T = 8 + 9M

So after the first month (where M = 1), we can find out that Todd has

T = 8 + 9 x 1 = 8 + 9 = 17 cds

For Sally, we know she adds 7 cds per month.

S = 18 + 7M

After one month (M = 1),

S = 18 + 7 x 1 = 25 cds.

Now we are trying to find when they will have the same number of cds and how many.

This means we are trying to figure out what M = ? when Todd and Sally are equal.

So we want to find when T = S

Remember, earlier we wrote :

T = 8 + 9M

S = 18 + 7M

If T = S, this means:

8 + 9M = 18 + 7M

Gather the like terms and solve for M.

Subtract 8 from both sides.

9M = 10 + 7M

Subtract 7M from both sides

2M = 10

Divide both sides by 2

M = 5.

So in 5 months, we are saying T = S (Todd and Sally will have the same number of cds).

Put M = 5 back into our earlier equations to find out how many cds they have after 5 months.

T = 8 + 9M

T = 8 + 9 x 5

T = 53

Therefore, after 5 months Todd and Sally will have 53 cds each :)

6 0
3 years ago
Heather flipped a coin five times, and each time it came up heads. Heather flips the coin one more time. Which is the theoretica
makkiz [27]

Answer:

1/2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Malcolm says that 8/11 is greater than 7/10 because eight is greater than seven and 11 is greater than 10 discuss Malcolm's reas
VARVARA [1.3K]

Answer:

8/11 = 0.727272727272727272727272727272727272727272727272727272727

where as

7/10 = 0.7

Step-by-step explanation:

8/11 is 0.72.... whereas 7/10 = 0.7 thus Malcolm was correct

3 0
3 years ago
Complete to get an equal ratio<br> 5a/8ab = ?/ 24a^2 b
Likurg_2 [28]

9514 1404 393

Answer:

  ? = 15a^2

Step-by-step explanation:

We assume you want

  (5a)/(8ab) = (?)/(24a^2·b)

Multiplying by 24a^2·b, we get ...

  (5a)/(8ab)·(24a^2·b) = ? = 15a^2

6 0
2 years ago
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