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3 years ago

Rectangle A has length 12 and width 8. Rectangle B has length 15 and width 10. Rectangle C has length 30 and width 15.

Mathematics

1 answer:

Alika [10]3 years ago

7 0

Answer:

No.

Step-by-step explanation:

No, because you can multiply or divide the length and breadth of rectangle A by the same number to get B

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The ratio in a classroom is 5:4 How many girls are there if there are 27 students?

kvasek [131]

Answer:

the answer depends if the ratio is 5 the answer is 15

if the ratio is 4 the answer is 12

Step-by-step explanation:

first add the ratios-5+4=9x

27 students

x=27/9=3

3*4 =12 or 3*5=15

please thank and mark brainliest if this helps!

4 0

4 years ago

Three-fifths of a number decreased by one is twenty-three.what is the number?

PSYCHO15rus [73]

Let n represent the number.
.. (3/5)n - 1 = 23 ... three-fifths of a number decreased by one is twenty-three. 
Please note that the same English description might be interpreted as 
.. (3/5)(n-1) = 23. 
We'll use the first interpretation, as it results in the number being an integer. 

.. (3/5)n = 24 ... add 1 
.. n = (5/3)*24 ... multiply by 5/3 
.. n = 40 ... carry out the multiplication 

The number is 40.

7 0

4 years ago

The pen for Ruth’s dog is 7 feet long and 6 1/2 feet wide. Her friend Ralph’s dog pen is 14 feet long and 6 1/2 feet wide. How m

Mkey [24]

Answer:

2 times larger

Step-by-step explanation:

Ralph's pen is 91 feet long

ruths is 45.5

Easily makes 91

7 0

2 years ago

Read 2 more answers

Suppose that P(A) = 0.97. Which of the following is the best interpretation of this statement?

storchak [24]

We have that This equation simply state that P as a Function of A is equal to 0.97

From the question we are told that

P(A) = 0.97.

Generally

This equation simply state that P as a Function of A is equal to 0.97

i.e P is a Constant equation and A is a variable that changes P to 0.97

For more information on this visit

brainly.com/question/23366835?referrer=searchResults

7 0

3 years ago

Last question was inncorrectly typed:1.A sample of students who has taken a calculus test has a mean =78.2, mode =67, median 67.

vampirchik [111]

Answer:

(A) The data set of the sample of students who has taken a calculus test is right skewed.

(B) The average of female students in the class is 66.

Step-by-step explanation:

(A)

For a left skewed distribution the Mean < Median < Mode.

For a right skewed distribution the Mean > Median > Mode.

For a symmetric distribution the Mean = Median = Mode.

Given: Mean = 78.2, Median = 67 and Mode = 67

In this case the mean of the data is more than the median and mode.

$Mean = 78.2>Median = Mode = 67$

Thus, the data set of the sample of students who has taken a calculus test is right skewed.

(B)

Total number of student ( $n$ ) = 35

Combined average ( $\mu_{c}$ ) = 70

Number of male student ( $n_{M}$ ) = 20

Average of male students ( $\mu_{M}$ ) = 73

Number of female student ( $n_{F}$ ) = 15

Average of female students = $\mu_{F}$

The formula to compute the combined average is:

$\mu_{c}=\frac{n_{M}\mu_{M}+n_{F}\mu_{F}}{n_{M}+n_{F}}$

Compute the value of $\mu_{F}$ as follows:

$\mu_{c}=\frac{n_{M}\mu_{M}+n_{F}\mu_{F}}{n_{M}+n_{F}}\\70=\frac{(20\times73)+(15\times\mu_{F})}{20+15}\\ 70\times35=1460+(15\times\mu_{F})\\\mu_{F}=\frac{2450-1460}{15} \\=66$

Thus, the average of female students in the class is 66.

8 0

4 years ago