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Elan Coil [88]
2 years ago
7

Can someone help me please? I don't understand what I need to do​

Mathematics
1 answer:
Nastasia [14]2 years ago
3 0

Answer:

You need to find what X= then put the answer in the box to the left

Step-by-step explanation:

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54 books make up 25% of the books in the library. How many books are there in the library.
Scrat [10]

25% is 1/4.

This means that 1/4 of the books in the library is 54, so just multiply 54 by 4, which gives you 100%, or all of the books. 54 times 4 is equal to 216, so there are 216 books in the library.

4 0
3 years ago
Read 2 more answers
4.5x – 2y = 15<br> 3x - y =10<br><br> (answer as a combined pair)
prisoha [69]

Answer:

x = 10/3 , y = 0

Step-by-step explanation:

Solve the following system:

{4.5 x - 2 y = 15

3 x - y = 10

In the first equation, look to solve for x:

{4.5 x - 2 y = 15

3 x - y = 10

4.5 x - 2 y = (9 x)/2 - 2 y:

(9 x)/2 - 2 y = 15

Add 2 y to both sides:

{(9 x)/2 = 2 y + 15

3 x - y = 10

Multiply both sides by 2/9:

{x = (4 y)/9 + 10/3

3 x - y = 10

Substitute x = (4 y)/9 + 10/3 into the second equation:

{x = (4 y)/9 + 10/3

3 ((4 y)/9 + 10/3) - y = 10

3 ((4 y)/9 + 10/3) - y = ((4 y)/3 + 10) - y = y/3 + 10:

{x = (4 y)/9 + 10/3

y/3 + 10 = 10

In the second equation, look to solve for y:

{x = (4 y)/9 + 10/3

y/3 + 10 = 10

Subtract 10 from both sides:

{x = (4 y)/9 + 10/3

y/3 = 0

Multiply both sides by 3:

{x = (4 y)/9 + 10/3

y = 0

Substitute y = 0 into the first equation:

Answer:  {x = 10/3 , y = 0

7 0
2 years ago
Explain how multiplying with 6 is like multiplying with 3
marusya05 [52]
They are alike because you are just doubling the number by 2
3 0
3 years ago
Read 2 more answers
PLEASE HELP god bless Justify each step of the solution by stating the property that was used to get to each step. Given: 4(-6x
baherus [9]

4(-6x – 3) + 24x = -72x + 132


Step 1  -24x – 12 + 24x = -72x + 132    Distribute Property of Equality


Step 2: –12 = -72x + 132    equivalent


Step 3: -144 = -72x    Subtraction Property of equality


Step 4: 2 = x   Equivalent / Division property of equality



6 0
3 years ago
Matt is mailing a rectangular package at the post office the box's volume is 24 in.³ what are all of the possible dimensions len
Greeley [361]

Answer:

The answer to your question is below

Step-by-step explanation:

Data

Volume = 24 in³

Process

1.- Find the prime factors of 24

                        24  2

                         12  2

                          6  2

                          3  3

                           1

2.- Volume of a rectangular package

             Volume = length x height x width

3.- Possible values are, combine the prime factors to find the volume

             Volume = 4 x 2 x 3   or

             Volume = 2 x 4 x 3

             Volume = 3 x 2 x 4

             Volume = 2 x 2 x 6

             Volume = 6 x 2 x 2

             Volume = 2 x 6 x 2

             Volume = 12 x 2 x 1

             Volume = 1 x 12 x 2

             Volume = 2 x 1 x 12

8 0
3 years ago
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