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4 years ago

Tenant has completed 3/20 of homework . Write the amount in decimals

Mathematics

1 answer:

LuckyWell [14K]4 years ago

6 0

3/20 is 0.15....

If you do 3 divided by 20 it equals 0.15

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The system of equations has

Nonamiya [84]

Answer: no solution

Step-by-step explanation: after simplifying they are parallel which means they have no solutions

8 0

3 years ago

on the last 5 quizzes, marco has earned a total of 21 out of 25 possible points. if he has a perfect score on the next several q

nevsk [136]

Using the mean concept, it is found that we will need 15 more points to bring up his average up to 90%.

The mean of a data-set is the <u>sum of all observations divided by the number of observations</u>.

In this problem:

In the first 5 observations, total of 21 out of 25 points, hence the mean for these observations is $\frac{21}{25} = 0.84$ .
In the next n observations, mean of 1.

Hence, the mean is:

$M = \frac{0.84(5) + n}{5 + n} = \frac{4.2 + n}{5 + n}$

We want the mean to be of 0.9, thus:

$M = 0.9$

$\frac{4.2 + n}{5 + n} = 0.9$

$4.2 + n = 0.9n + 4.5$

$0.1n = 0.3$

$n = \frac{0.3}{0.1}$

$n = 3$

3 more testes are need, each worth 5 points, hence, 15 more points are needed to bring up his average up to 90%.

A similar problem is given at brainly.com/question/25323941

6 0

3 years ago

An automobile's radiator has a capacity of fifteen quarts, and it currently contains twelve quarts of a thirty percent antifreez

Eddi Din [679]

no no no n oStep-by-step explanation:

step bro what are you doing?

6 0

4 years ago

Help quickly please!!!

Helen [10]

Answer:

1) 0.008

2) 0.22

3) 0.01

4) 0.2

5) 0.1%

6) 758%

7) 3%

8) 0.7%

9) 9.19

10) 2.5

11) 1

12) 8.613

13) 4

14) 6.75

15) 15.45

16) 42.1

17) 5

18) Whatever number you can only see the 1 of, because it didn't make it into the picture.

Hope this helps!

3 0

4 years ago

The length of a rectangle is 3 times its width. The perimeter of the rectangle is 56 inches. What are the dimensions of the rect

dangina [55]

Answer:

Width=7

Length=21

Step-by-step explanation:

Width=x

length=3x

x+x+3x+3x=56

8x=56

x=7

width = x = 7

length = 3x = 21

4 0

3 years ago

Read 2 more answers