Mathematics Middle School

The formula f= n/4 + 37 estimates the temperature F in degrees Fahrenheit when crickets chirp n times per minute. Use the formula to estimate the
temperature when n = 75 chirps/min. Round to the nearest whole number, if necessary.

a) 52mc009-4.jpg
b) 53mc009-3.jpg
c) 56mc009-5.jpg
d)58mc009-2.jpg

Answers

Answer 1
the answer is C when you plug in 75 for n you get 75/4+37 which equals 55.75 when rounded to the nearest whole number it is 56 which is C. Hope that helps
Answer 2

Answer:

56°F

Step-by-step explanation:

Given : The formula[tex]F = \frac{n}{4} + 37[/tex]estimates the temperature F in degrees Fahrenheit when crickets chirp n times per minute.

To Find: Use the formula to estimate the  temperature when n = 75 chirps/min.

Solution:

Formula : [tex]F = \frac{n}{4} + 37[/tex]

Where  F in degrees Fahrenheit when crickets chirp n times per minute.

Now we are supposed to substitute n = 75

So,  [tex]F = \frac{75}{4} + 37[/tex]

[tex]F = 55.75[/tex]

Hence  the  temperature is 56°F when n = 75 chirps/min.

Related Questions

A water tank holds 18,000 gallons. How long will it take for the water level to reach 6000 gallons if the water is used at an average rate of 450 gallons per day?

Answers

2.18,000-6,000=12,000. and then you divide 12,000 by 450 and you get 26 2/3 days.
If the original 18,000 gal of water is draining at a rate of 450 gal/day, we begin by calculating how many gal it needs to drain:
18,000-6,000 = 12,000 gal
Now setup 12,000 gal/1 × 1 day/450 gal, in order to cancel out gallons and have our result in days.
So 12,000/450 = 240/9 = 26.66 days, or a full 27 days rounding to the day

Need the complete Answer of this problemssssss.

Answers

1. The price is $50.
The discount is 10% of $50.
10% of $50 = 10% * $50 = 0.10 * $50 = $5
The discount is $5
Now we subtract the actual discount to find the final price.
$50 - $5 = $45
The selling price is $45

2. Use the same method as for problem 1. First find the amount of discount by multiplying the percent by the price. Then subtract the amount of discount from the original price.
The price is $500.
The discount is 20% of $500.
20% of $500 = 20% * $500 = 0.20 * $500 = $100
The discount is $100
Now we subtract the actual discount to find the final price.
$500 - $100 = $400
The selling price is $400

3. The price is $80.
The discount is 5% of $80.
5% of $80 = 5% * $80 = 0.05 * $80 = $4
The discount is $4
Now we subtract the actual discount to find the final price.
$80 - $4 = $76
The selling price is $76

I did the first three problems for you.
Now you can try the last two.
Write in the comments what you get for the discount amounts and selling prices of problems 4 and 5, and I'll let you know if you're correct.

Which equation is a point slope form equation for line AB ?

A.y−2=34(x−1)

B.y−1=34(x−2)

C.y−5=34(x−6)

D.y−6=34(x−5)

Answers

did you find the answer because i think its c

The required equation is  C.) y−5 = 3/4(x−6)

What is a straight line?

A straight line is an endless one-dimensional figure that has no width. It is a combination of endless points joined both sides of a point and has no curve.

Here, we have to points (6,5) and, (-2,-1)

So, by using the formula of equation of straight line of two-point form, we get,

(y-y_1)/(x-x_1 )=(y_2-y_1)/(x_2-x_1 )

=>(y-5)/(x-6)=(-1-5)/(-2-6)

=>4y-20=3x-18

=>y-5=3/4(x-6)

Hence, the required equation is, C.) y−5 = 3/4(x−6)

To learn more on Equation 0f Straight-Line click:

brainly.com/question/11116168

#SPJ3

17 times 59 distributive property

Answers

17 times 59 is equal to 1003

the Common Factor  of 64 and 120 is 8


Cindy has 26 nickels. She is getting rolls of nickels from the bank. She has enough money to get up to 10 rolls of nickels and each roll contains 40 nickels. The bank will not give partial rolls. The function that models the number of nickels Cindy will have after leaving the bank is f(r)=40r+26, where r is the number of rolls of nickels she gets. What is the practical domain of the function?
A) all real numbers
B) r>1
C) {66, 106, 146, 186, 226, 266, 306, 346, 386, 426}
D) all integers from 1 to 10, inclusive

Answers

The answer is C I think 

Answer: Option D is the right answer. The practical domain of the function=all integers from 1 to 10, inclusive.

Step-by-step explanation:

Given function  f(r)=40r+26, where r is the number of rolls of nickels she gets.

as it is already mentioned that she can get up to 10 rolls of nickels.

Therefore domain of function contains r ≤10,such that r is a natural number.

i.e.Domain of f(r)=all integers from 1 to 10, inclusive.

Domain of a f(x) is a set of values of x which make function f(x) well defined.

Match the equation with its corresponding solution for x. 4x + 7 = 35

Answers

Are you wanting to solve for x? If so:
4x + 7 = 35
We want to isolate the variable, so subtract 7 from both sides.  You will get:
4x = 28
Now, divide each side by 4 to get X by alone. This will give you:
x = 7
I hope this helped.

Write each number in standard form 600 + 90 + 3

Answers

In standard form it would be 693.

Circle P has a diameter of 20 feet. Circle Q has a diameter of 30 feet. What is the ratio of the circumference?

Answers

Perimeter of circle = 2πr
2:3.



Answer:

The ratio of the circumferences of Circle P to Circle Q is [tex]\( \frac{2}{3} \).[/tex]

Explanation:

The circumference of a circle is given by the formula \(C = \pi \times d\), where [tex]\(d\)[/tex] is the diameter.

For Circle P with a diameter of 20 feet, the circumference is:

[tex]\[ C_P = \pi \times 20 \][/tex]

For Circle Q with a diameter of 30 feet, the circumference is:

[tex]\[ C_Q = \pi \times 30 \][/tex]

To find the ratio of the circumferences of Circle P to Circle Q, we divide the circumference of Circle P by the circumference of Circle Q:

[tex]\[ \text{Ratio} = \frac{C_P}{C_Q} = \frac{\pi \times 20}{\pi \times 30} \][/tex]

[tex]\[ \text{Ratio} = \frac{20}{30} = \frac{2}{3} \][/tex]

So, the ratio of the circumferences of Circle P to Circle Q is [tex]\( \frac{2}{3} \).[/tex]

A cylinder has a volume of 320 pi cu. in. and a height of 5". Find the radius of the cylinder.

Answers

Answer:

The radius of cylinder is 8 inches.

Step-by-step explanation:

We have given,

Volume of cylinder = 320π   cubic inches

Height of cylinder = 5 inches

We know, Formula for volume of cylinder as : V =πr²h

where r is radius of cylinder and h is the height of cylinder.

So, We can plug values for V and h to get radius of cylinder.

i.e  V = πr²h

320π = πr²* 5

Solving for r.

We get,

320 = r² * 5

320/5 = r²

64 = r²

or r = ±8 , Since radius of cylinder can not a negative number so we neglect -8.

Hence the radius of cylinder is 8 inches.


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