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baherus [9]
3 years ago
9

In science class, the girl to boy ratio is 3 to 7. If there are 50 students in the class, how many are boys

Mathematics
2 answers:
Julli [10]3 years ago
3 0

Answer:

there are 35 boys in the class

Step-by-step explanation:

love the anime character!

Ugo [173]3 years ago
3 0

Answer:I’ll

Step-by-step explanation:skskekeeff

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Based on a study of population projections for 2000 to​ 2050, the projected population of a group of people​ (in millions) can b
Olegator [25]

Answer:

(a) 0.107 million per year

(b) 0.114 million per year

Step-by-step explanation:

A(t) = 11.19(1.009)^t

(a) The average rate of change between 2000 and 2014 is determined by dividing the difference in the populations in the two years by the number of years. In the year 2000, t=0 and in 2014, t=14. Mathematically,

\text{Rate}=\dfrac{A(2014) - A(2000)}{2014-2000}=\dfrac{11.19(1.009)^14-11.19(1.009)^0} {14}

A(0)=\dfrac{12.69-11.19}{14}=\dfrac{1.5}{14}=0.107

(b) The instantaneous rate of change is determined by finding the differential derivative at that year.

The result of differentiating functions of the firm y=a^x (where a is a constant) is \dfrac{dy}{dx}=a^x\ln a. Let's use in this in finding the derivative of A(t).

A\prime(t) = \dfrac{A}{t}=11.19\cdot1.009^t\ln1.009

In the year 2014, t=14.

A\prime(14) =11.19\cdot1.009^14\ln1.009=0.114

6 0
3 years ago
A furniture store pays $210 to stock a coffee table. It sells the table with a 60% markup. What is the selling price of the coff
koban [17]
Answer: $336
explanation: 60% is equal to .6 so just take $210 and multiply that by .6 to get $126. Now, just take $126 and add it to $210 and you have $336.
8 0
2 years ago
Suppose that a dart board is given by a circle of radius 1 in R², centered at (0,0). You throw a dart at the dart board, and the
Gnesinka [82]

Answer:

Answer B

Step-by-step explanation:

7 0
2 years ago
23/5+99/5-5/5 <br> Help LOL kk want random points
mojhsa [17]

Answer:

23.4

Step-by-step explanation:

23/5+99/5-5/5= 23.4

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5 0
3 years ago
Read 2 more answers
Simplify 7(B + 3) + 2B.
motikmotik

Answer:


Step-by-step explanation:

7(B + 3) + 2B

7B + 21 + 2B

7B + 2B + 21

9B + 21



4 0
3 years ago
Read 2 more answers
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