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Vadim26 [7]
4 years ago
7

What is the solution of 2x/5−x/2=40 ?

Mathematics
1 answer:
mrs_skeptik [129]4 years ago
7 0
2x/5 - X/2 = 40
LCD = 10

2•(2x/5) - 5•(X/2) = 40
4x/10 - 5x/10 = 40
4x-5x/10 = 40
-X/10 = 40
10•(-X/10) = 40 • 10
-X = 400
-X/-1 = 400/-1
X = -400.

I believe the solution is that X = -400.
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Viktor [21]

Answer:

xy = 3

Step-by-step explanation:

The expression to be evaluated is:

2\cdot x +4\cdot x + 8\cdot y + 16\cdot y = 42

6\cdot x + 24\cdot y = 42

By some algebraic handling:

6\cdot (x + 4\cdot y) = 42

Where:

x+4\cdot y = 7

There is one possible solution:

x = 3, y = 1

And consequently,

xy = 3

4 0
3 years ago
Bruce flipped a penny 5 times. It landed on heads 2 times and tails 3 times. If he flips the coin a 6th time, what statement is
babunello [35]

Answer:

B

Step-by-step explanation:

I would say B because they're only 2 options head and tails.

✩brainliest appreciated ✩

3 0
3 years ago
Which statement is true?
Lelu [443]

Answer:

The statement that is true is:

A debt of $17 is a larger value than a debt of $20.

Step-by-step explanation:

Let us look at the statements one after the other to determine if they are true or not:

1) A debt of $17 is a larger value than a debt of $20: This is true because when measuring debts, we will consider the values in the negative sense (-). Therefore, a debt of $17 has a value of (-17) and a debt of $20 has a value of (-20). -17 is larger than - 20 on a number line, hence, a debt of $17 has a larger value for the debtor, than a debt of 20$

2) One half an apple is equivalent to 8 fourths apples:

one half an apple = \frac{1}{2}\ of\ an\ apple

8 fourths of an apple = \frac{8}{4} = \frac{2}{1}\ of\ and\ apple. Therefore, one half of an apple is not equivalent to 8 fourth of an apple.

3) 8.01 is a smaller increase in sales than 8.001: This statement is false because 8.001 is counted before 8.01, and the difference between 8.01 and 8.001 is:

8.01 - 8.001 = +0.009, hence, 8.01 is larger than 8.01 by a magnitude of 0.009

4) \frac{2}{3}\ below\ zero is a lower temperature than 6 below zero:

\frac{2}{3}\ below\ zero\ = (-\frac{2}{3})^\circ

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On the number line, -6 is smaller than -\frac{2}{3} hence the statement is false.

5 0
3 years ago
Shade the model to 0.5 x 0.3
stellarik [79]
What model? also it would be 1/2 and 1/3
6 0
4 years ago
Read 2 more answers
Solve for f. f/-3 + 2 =4
Reil [10]
F/-3+2=4 subtract 2 from both sides
f/-3=2 multiply by -3
f=-6 your answer is f=-6

4 0
3 years ago
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