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qwelly [4]
3 years ago
15

Is this a true proportion ? 1/2 = 5/10 A sometimes B Yes C none of these D no

Mathematics
2 answers:
umka21 [38]3 years ago
8 0

Answer: Yes, this is true proportion


Step-by-step explanation:

1/2 = 5/10

If we simplify 5/10

Then 5/10 = 1/2

Hence proved.

Andrews [41]3 years ago
5 0

Question

Is this a true proportion ? 1/2 = 5/10 A sometimes B Yes C none of these D no

Answer:

<h3>B Yes</h3>

Step-by-step explanation:

1/2 = 5/10

semplify 5/10

1/2 = 1/2

the proportion is true

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Let X denote the time in minutes (rounded to the nearest half minute) for a blood sample to be taken. The probability mass funct
Basile [38]

This question is incomplete, the complete question is;

Let X denote the time in minutes (rounded to the nearest half minute) for a blood sample to be taken. The probability mass function for X is:

x     0       0.5       1       1.5       2       2.5

f(x)  0.1     0.2     0.3    0.2     0.1       0.1

determine;

a) P( X < 2.5 )

B) P( 0.75 < X ≤ 1.5 )

Answer:

a) P( X < 2.5 ) = 0.9

b) P( 0.75 < X ≤ 1.5 ) = 0.5

Step-by-step explanation:

Given the data in the question;

The probability mass function for X is:

x     0       0.5       1       1.5       2       2.5

f(x)  0.1     0.2     0.3    0.2     0.1       0.1

a) P( X < 2.5 )

P( X < 2.5 ) = p[ x = 0 ] + p[ x = 0.5 ] + p[ x = 1 ] + p[ x = 1.5 ] + p[ x = 2 ]

so

P( X < 2.5 ) = 0.1 + 0.2 + 0.3 + 0.2 + 0.1

P( X < 2.5 ) = 0.9

b) P( 0.75 < X ≤ 1.5 )

P( 0.75 < X ≤ 1.5 ) = p[ x = 1 ] + p[ x = 1.5 ]

so

P( 0.75 < X ≤ 1.5 ) = 0.3 + 0.2

P( 0.75 < X ≤ 1.5 ) = 0.5

3 0
3 years ago
Please help................​
alexira [117]

Answer:

so 2^{8} equals 2x2x2x2x2x2x2x2

Step-by-step explanation:

Its that because when expanding Exponents, you always put the first number of the exponet first. like for example, 3^{2} , you put the three 2 times and multiply. 3x3

8 0
3 years ago
A biker’s speed is 1.5 times faster than a walker’s speed. They start moving simultaneously in the same direction from the same
worty [1.4K]
Let the walker’s speed be W, then the biker’s is W+1.5W=2.5W. Difference in speed is 1.5W. Distance=speed times time, so 12.5=1.5W×1.5=2.25W, and W=12.5/2.25=1250/225=50/9=5.56 mph. The biker’s speed is 2.5W=125/9=13.89 mph to 2 Dec places.
(Note: “1.5 times faster than a walker’s speed” could not reasonably mean the biker’s speed=1.5W because this would give W=16.67 mph, which is very fast for a runner, let alone a walker (!), and a biker’s speed of 25mph.)
5 0
3 years ago
Read 2 more answers
Which fractions are equivalent to -15/20 ?
sashaice [31]
-15 / 20 = -0.75

-2/3 = -0.66
-9/12 = -0.75
-12/16 = -0.75
-25/30 = -0.83

Therefore B and C are the correct answers.
7 0
3 years ago
Graph the integer 0 to its opposite on the number line
katen-ka-za [31]

Answer:

It would be graphed at 0.

Step-by-step explanation: The answer would be graphed at 0 on a number line because 0 is its opposite.

Hope this helps!

7 0
3 years ago
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