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3 years ago

4/15 of the 315 members of a book club are male. how many members r female?

2 answers:

7 0

B) 231

To get the answer, you first need to figure out how many men are in the book club:
- Multiply the total number of members (315) by the fraction of members that are men (4/15)
- (4/15) * 315
- Multiply 4 by 315, and then divide by 15.
- This will give you the number of men (84)

Then you need to figure out how many women there are:
- Subtract the number of men (84) from the total number of members (315)
- 315 total members - 84 male members = 231 female members

pishuonlain [190]3 years ago

6 0

M+f=315
m=4*315/15
m=1260/15
m=84

f=315-84
f=231

Corect answer : B

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Find the perimeter of pentagon STUVW WITH VERTICES S(0,0) T(3,-2) U(2,-5) V(-2,-5) W(-3,-2)

andrew11 [14]

Use the distance formula.

$\sqrt{( x_{2} - x_{1} )^2 + (y_{2} - y_{1})^2}$

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~3.6

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$\sqrt{(3 - 0)^2 + (-2 - 0)^2}$

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Points T and U
$\sqrt{(3 - 2)^2 + (-2 + 5)^2}$

$\sqrt{(1)^2 + (3)^2}$

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Points U and V
$\sqrt{(2+2)^2 + (-5 + 5)^2}$

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Points V and W
$\sqrt{(-2+3)^2 + (-5 + 2)^2}$

$\sqrt{(1)^2 + (-3)^2}$

$\sqrt{2+9}$

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Add all these together.

3.3 + 3.1 + 4 + 3.1 + 3.6
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3 years ago

Solve this equation 1/3t - 8 = -6

VARVARA [1.3K]

Answer:

t=6

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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2 years ago

What is the decimal that is 1/10 of 0.9

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3 years ago

Logarithms:

bogdanovich [222]

Answer:

2^45 or ≈ 3.5*10^13

Step-by-step explanation:

Given equation

f(t) = 2^(kt)
f - number of cells, t - number of months, k- coefficient

We got 32 cells in the first month. It means:

t = 1, f(1) = 32

Using these numbers we can find the coefficient k:

32 = 2^(k*1)
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k = 5

Then the equation becomes:

f(t) = 2^(5t)

Average time is 9 months, we can calculate the number of cells:

f(9) = 2^(5*9) = 2^45 ≈ 3.5*10^13

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3 years ago