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3 years ago

Explain why 1/2 is not equivalent to 2/5

2 answers:

7 0

Onen way, is to know that
if a=b and c=d, then a/c=b/d, and thn (a/c)(d/b)=1

the real way would be to make denomenators the same

one way would be to firs assume they are equal then show it is false
1/2=2/5
times right sides by 5/5 and left by 2/2
5/10=4/10
times 10 both sides
5=4
flase

it is not equal

Karo-lina-s [1.5K]3 years ago

4 0

If you were to make the denominators equivalent, you'd see they aren't equivalent.

1/2=5/10

2/5=4/10

...Hope that helps

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A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are listed below. The values

mamaluj [8]

Answer:

Systolic variation coefficient (CVS) = 0.1446 = 14.46%

Diastolic variation coefficient (CVD) = 0.1789 = 17.89%

The variation, with respect to the mean, of the systolic pressure sample is slightly less than the variation of the Diastolic pressures.

Step-by-step explanation:

Systolic Mean (MS) = 127.8

Diastolic Mean (MD) = 73.5

Standard Deviation Systolic (sdS) = 18,486

Standard Deviation Diastolic (sdD) = 13.1508

The coefficient of variation is defined by:

Systolic variation coefficient (CVS) = sdS / MS = 18.486 / 127.8 = 0.1446 = 14.46%

Diastolic variation coefficient (CVD) = sdD / MD = 13.1508 / 73.5 = 0.1789 = 17.89%

Then, it can be concluded that the variation, with respect to the mean, of the systolic pressure sample is slightly less than the variation of the Diastolic pressures.

8 0

3 years ago

A supermarket display consists of boxes of cereal. The bottom row has 23 boxes. Each row has three fewer boxes than the row belo

Vesnalui [34]

Well, I don't know if the following work is exactly what you want but here it goes:

first:23
second: 23-3=20
third: 20-3=17
fourth:17-3=14
fifth: 14-3=11
sixth: 11-3=8

Hope thats what you wanted if not Ill do my best to figure out a different solution. Just comment or private message me For questions. :0

4 0

3 years ago

Read 2 more answers

Simplify expression show step by step <br> (-2i)(8i)

TiliK225 [7]

Answer:

Step-by-step explanation:

<u>Remember that $i^2 = -1$ </u>

(-2i)(8i)

$-16i^2$

$-16(-1)$

5 0

3 years ago

>: If the scale factor is a 1. What happens to the shape? How can you prove this?

maria [59]

The shape would be exactly the same because any number multiplied by 1 equals itself.

3 0

3 years ago

Henri had a plum tree. The first week it was 15 feet. 2 weeks after that is was 22 feet and 2 more weeks later is was 36 feet. w

Alex

Answer:

The equation of tree's growth is given as : C(n) = 15 + 7 n ,

n = pair of weeks, n = 2, 4, 6 , 8 , ....

Step-by-step explanation:

Here, the initial height of the plum tree = 15 ft

⇒h (0) = 15 ft

Now, after two weeks the tree is 22 ft

⇒h (2) = 22 ft

Now,the growth of tree in 2 weeks

= Height after 2 weeks - Initial height of tree

= 22 ft - 15 ft = 7 ft

So, the plum tree grows 7 ft in 2 weeks

⇒ The plum tree grown (7/2) ft in 1 week.

Also, the growth of tree in next 2 weeks = 36 ft

So, the growth of tree in next 2 weeks

= Height after 4 weeks - Height after 2 weeks

= 36 ft - 22 ft = 14 ft

So, the tree grows 14 ft in next two weeks.

⇒ The tree grows 7 ft in next 2 weeks.

hence, the complete growth of each week is given as:

15 ft , 18.5 ft , 22 ft , 29 ft , 36 ft

So, the equation of tree' growth is given as : C(n) = 15 + 7 n

Here, n = Pair of weeks, n = 2, 4, 6 , 8 , ....

8 0

3 years ago