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ipn [44]
3 years ago
7

In the "magic square" at the right, the four numbers

Mathematics
2 answers:
romanna [79]3 years ago
6 0

Answer:

15

Step-by-step explanation:

Alja [10]3 years ago
6 0
The value of N is 15!
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What is the range of possible sizes for side x?
jekas [21]

Answer:

the range of possible values for x are 1.6<x<9.6

Step-by-step explanation:

4 0
2 years ago
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a worker A finishes a project on his own in 12 days. the worker completes the same work alone in 16 days. the two workers starte
ankoles [38]

Answer:

<em>Worker B needs 9 days to finish the rest of the work</em>

Step-by-step explanation:

<u>Proportions</u>

Worker A finishes a project on his own in 12 days and worker B does the same in 16 days.

Worker A does 1/12 of the project in one day and worker B does 1/16 of the project in one day. When working together, they do

\frac{1}{12}+\frac{1}{16}=\frac{7}{48}

After 3 days they have completed:

3*\frac{7}{48}=\frac{7}{16}

parts of the project, this means it still remains:

1-\frac{7}{16}=\frac{9}{16}

parts of the project and it is done by B alone. Since B does \frac{1}{16} per day, he now takes

\displaystyle \frac{\frac{9}{16}}{\frac{1}{16}}=9

days to complete the project.

Worker B needs 9 days to finish the rest of the work

4 0
3 years ago
Helpppppppppp me pleaseeeeeeeeeee
MrRa [10]
The answer is C .12/15 since you can divide A,B,D and get 2/3 but you cannot with C 
5 0
3 years ago
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The variable y is directly proportional to the variable x. If y = 32 when x = 20, what is the value of x when y = 40?
elena55 [62]

Answer:

The Correct option is C ) 25

Therefore the value of x is 25 when y =40.

Step-by-step explanation:

Given:

Variable 'y' is directly proportional to the variable 'x'.

\therefore y=kx     ......Direct Variation

Where,

k = Constant of proportionality

To Find:

value of x = ? when y = 40

Solution:

First we need to find Constant of proportionality

When x = 20 and y = 32

Substituting the values we get

32=k\times 20\\k=\dfrac{32}{20}=1.6\\\\k=1.6

Now when k =1.6 , y = 40 then x will be

40=1.6\times x\\\\x=\dfrac{40}{1.6}=25\\\\x=25

Therefore the value of x is 25 when y =40.

6 0
3 years ago
Help plzzzz Which equation describes the statement shown?
Sedaia [141]

Answer:

y=x-3

Step-by-step explanation

8 0
3 years ago
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