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Ilya [14]
3 years ago
13

Sofia says that 1/3⋅1/3⋅1/3⋅1/3=4/3

Mathematics
2 answers:
stepan [7]3 years ago
8 0

Sofia is wrong; 1/3 · 1/3 · 1/3 · 1/3 = 11/12.

natita [175]3 years ago
5 0

Answer:

false

Step-by-step explanation:

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Mary runs in the Chicago marathon and it takes her 5 hours to complete it. Write a
klasskru [66]
If you want to keep it technical, the normal “/unit rate” for running is minutes per mile. You can use dimensional analysis like I did below to find the answer. You should get 11.45 min/mile or about 11 min 25 sec per mile

8 0
3 years ago
a certain test is worth 135 points. how many points (rounded to the nearest point) are needed to obtain a score of 85%?
yanalaym [24]

To obtain a score of 85% on a test worth 135 points, one needs to get 115 points. By using proportions, we get the required value.

<h3>How to write proportions?</h3>

A proportion is defined as an equality between two ratios.

Consider two ratios a:b and c:d. Then, the proportion we can write,

a: b = c : d

Then, the simplification we have for this proportion is

a/b = c/d or ad = bc

<h3>Calculation:</h3>

It is given that, a certain test is worth 135 points.

One to get 85% on this test, he/she needs to get X number of points.

So, we can write the proportions as

X : 135 = 85 : 100

⇒ X/135 = 85/100

⇒ X = 85/100 × 135

∴ X = 114.75 ≅ 115 points

Learn more about proportions at the following link:

brainly.com/question/140018

#SPJ4

7 0
11 months ago
The March utility bills (in dollars) of 30 homeowners are listed below. 44 38 41 50 36 36 43 42 49 48 35 40 37 41 43 50 45 45 39
Ulleksa [173]

Step-by-step explanation:

What we will do is create a table with the data they give us, the first thing will be to organize it from smallest to largest, like this:

33, 35, 35, 36, 36, 36, 37, 38, 38, 39, 40, 40, 41, 41, 41, 42, 42, 43, 43, 43, 44, 45, 45, 47, 48, 48, 49, 50, 50, 50

Now we know that the smallest number is 33 and the largest is 50, to create 5 ranges, we will calculate the difference and divide by 5.

(50 - 33) / 5 = 3.4

Therefore we will make ranges of 3 and 4, values, like this

Rank 1: 33 - 36

Rank 2: 37 - 39

Rank 3: 40 - 43

Rank 4: 44 - 46

Rank 5: 47 - 50

We will calculate the frequency distribution of values in each range:

Rank 1: 6

Rank 2: 4

Rank 3: 10

Rank 4: 3

Rank 5: 7

5 0
3 years ago
In a florist shop, the ratio to tulips is 7:2. The shop has 84 tulips on Friday morning. How will the ratio of roses to tulips c
Alexxandr [17]

Answer:

It will stay the same.



3 0
2 years ago
Read 2 more answers
PLEASE HELP ASAP DUE RN!
yKpoI14uk [10]

Answer:

27.9

Step-by-step explanation:

i googled it for you

7 0
2 years ago
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