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kaheart [24]
3 years ago
10

4x 5. If 7:5 = (x + 2y): (x - y), find the value of 5y

Mathematics
1 answer:
Otrada [13]3 years ago
8 0

Answer:

5/2 OR 2.5

Step-by-step explanation:

( x + 2y ) = 7 , ( x - 2y ) = 5

x = 7 - 2y , x = 5 + 2y

substitute the two eqns together:

7 - 2y = 5 + 2y

7 - 5 = 2y + 2y

2 = 4y

y = 1/2

when y = 1/2 ,

5y = 5(1/2)

= 5/2 OR 2.5

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grin007 [14]
Simplify the expression.
2a − 6
3 0
2 years ago
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Select the statement that correctly compares two numbers.
sattari [20]

The correct answer is option A

• In mathematics, comparison of numbers if the process that defines similar properties between two numbers and identifies that the number if smaller or greater than or equal to the other number.

• In maths there are three special symbols used in comparison of numbers. The basic symbols are

1. Greater than (>)

2. Less than (<)

3. Equals to (=)

According to the question

Option A :

4.13 = 4.130

As we know the value of 0 after all the numbers and after the decimal is insignificant,

So , 4.13 = 4.130

This is correct comparison.

Option B :

5.16<5.06

Bigger number can’t be less than the smaller number, comparison is wrong.

Option C :

6.28<6.08

Bigger number can’t be less than the smaller number, comparison is wrong.

Option D:

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Smaller number can’t be greater than the bigger number, comparison is wrong.

Option A is correct

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4 0
1 year ago
A quality control inspector has determined that 0.25% of all parts manufactured by a particular machine are defective. If 50 par
Arlecino [84]

Answer:

9.941*10^-6

Step-by-step explanation:

Probability of at most 1 means not more than 1 defective= probability of 1 or probability of 0

Probability of 1 = 50C1(0.25)(0.75)^49

Probability= 50(0.25)*7.55*10^-7

Probability= 9.375*10^-6

Probability of 0

= 50C0(0.25)^0(0.75)^50

= 1(1)(0.566*10^-6)

= 0.566*10^-6

Total probability

= 9.375*10^-6+ 0.566*10^-6

= 9.941*10^-6

4 0
3 years ago
Which is not a rational number?
mrs_skeptik [129]

Answer:

Answer: A real number that is not rational is called irrational. Irrational numbers include √2, π, e, and φ. The decimal expansion of an irrational number continues without repeating.

7 0
2 years ago
What is 26% of 200.i really need to know
babunello [35]
26 percent of 200 is 52 :)
4 0
3 years ago
Read 2 more answers
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