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konstantin123 [22]
3 years ago
7

What is the value of x?

Mathematics
2 answers:
Ainat [17]3 years ago
7 0

Answer:

depends on the equasion!

Step-by-step explanation:

Natali5045456 [20]3 years ago
4 0

Answer:

depends on what equation you have

Step-by-step explanation:

EX. If the equation was

x(3)=15 x would be 5 because 5 times 3 equals 15.

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Ben is 12 years older than Ishaan. Ben and Ishaan first met two years ago. Three years ago, Ben was 4
mel-nik [20]
Ishaan is 7 and Ben is 19
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3 years ago
gabby's piggy bank contains dimes and nickels worth $6.40. If she has 84 coins in all, how many of each does she have?
Sergeu [11.5K]
If we let Q be the number of quarters and N be number of nickels, this is the formula we would use:
[1] 25Q + 5N = 635 (using cents instead of dollars)


We also know something about Q and N.

[2] Q + N = 51


So multiply both sides of the second equation by 5. The reason we do this is because we're going to need to cancel out one of the variables (either Q or N) to solve for the other one. If we multiply times 5, we'll have 5N in both equations.
5Q + 5N = 255

Now we have two equations, and the second one can be subtracted from the first.

25Q + 5N = 635
-(5Q + 5N) = -255
---------------------
20Q = 380
so
Q = 19

There are 19 quarters.

And since there are 51 coins in all, 51-19 = 32 nickels.
5 0
3 years ago
Here is the next one:)
butalik [34]

Answer:

O Sin (53) = 21/29

O Sin (37) = 20/29

Step-by-step explanation:

In a triangle, the sine is opposite over hypotenuse, the cosine is adjacent over hypotenuse, and the tangent is opposite over adjacent.

8 0
3 years ago
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Matthew and karen are shopping for vegtables to make soup. Karen buys 1 onion soup and 2 carrots. Her total cost is $ 1.30. Matt
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What do you need to find the answer of?
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there are 28 tables in the cafeteria.each table has 12 students sitting at it.fourth graders sit at 13 of the yables.fifth grade
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Hope this helps!

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