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snow_lady [41]
3 years ago
8

I need help on this i dont get it and i need to bring my homework by tomorrow

Mathematics
1 answer:
natita [175]3 years ago
7 0

a ratio is how many X there are per Y. for example, a fraction is a ratio: 10/5 = 2 because there are 2 fives in a ten. but usually a ratio is written as x:y.

so to find these ratios, first we need to find the number of girls. 30 students-16 boys = 14 girls.

the ratio of girls to boys is 14:16 because there are 14 girls to every 16 boys. we simplify this to 7:8.

the ratio of girls to all students is 14:30. we simplify this to 7:15.

the ratio of boys to girls is 16:14, which simplifies to 8:7.

the ratio of boys to all students is 16:30, which simplifies to 8:15.

You might be interested in
How do you solve this problem <br> 7= ln(x+5)
Gnesinka [82]
Answer:

x = 1091.63315843
<span>
Setting Up:

7 = ln ( x + 5 )

ln translates to "log" with an "e" as the base or subscript ( a small "e" at the bottom right of the "g" in log).

You take the base of the log and put it to the power of "7" ( "7" is the natural log of ( x + 5 ) in this problem ).

The value of which the logarithm is calculated is set equal to the base of the logarithm to the power of the calculated logarithm of the value.

e^7 = x + 5

Solving</span>:

e = 2.71828182846

Natural logarithms are logarithms to the base of the constant 'e'.

e^7 = x + 5    ( simplify e^7 )

<span>1096.63315843 = x + 5
</span>
Subtract 5 from each side.

1091.63315843 = x


5 0
3 years ago
Write 61/9 as a mixed number
bixtya [17]
Hey There!

\frac{61}{9} as a mixed number would be 6 \frac{7}{9}

Thank You!
4 0
3 years ago
Read 2 more answers
I'll give 100 brainly points, i just need help...plz
Solnce55 [7]

Answer:

  • A. (x^{2/7})(y^{-3/5})

Step-by-step explanation:

<u>The numerator is:</u>

  • \sqrt[7]{x^2}  = (x^2)^{1/7} = x^{2/7}\\

<u>The denominator is:</u>

  • \sqrt[5]{y^3}  = (y^3)^{1/5} = y^{3/5}

<u>The fraction is equivalent to:</u>

  • \frac{x^{2/7}}{y^{3/5}} =
  • (x^{2/7})(y^{-3/5})

Correct choice is A

4 0
3 years ago
write the equation In point slope form of the line with slope 2/5 and passing through the point (-8,1)
Dominik [7]
Point-slope:

y-y1= m(x-x1)

Plug in what you know. 

y1= 1 and x1= -8

y-1= 2/5(x-(-8)
y-1= 2/5(x+8)

Distribute. 

y-1=.4x+ 3.2 <- that is the final answer

I hope this helps!
~kaikers


5 0
3 years ago
What does a residual value of 0.8 mean in reference to the line of best fit?
notka56 [123]

Answer:

i think its -The given point is 0.8 units above the line of best fit

Step-by-step explanation:

only because if it were -0.8 it would be below the line

6 0
3 years ago
Read 2 more answers
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