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Degger [83]
3 years ago
6

​Dolbear's law states the relationship between the rate at which Snowy Tree Crickets chirp and the air temperature of their envi

ronment. The formula is Upper T equals 50 plus N minus 40 Over 4, where T is a temperature in degrees Fahrenheit and N is a number of chirps per minute. If n=66
Mathematics
1 answer:
erastovalidia [21]3 years ago
4 0
25.21 this is corect :D

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Please help me asap have a great day
GREYUIT [131]

Answer:

C, 15

Step-by-step explanation:

i looked it up

5 0
3 years ago
Sally either walks, cycles or drives to work. She walks about 15% of the time and drives about 3/5 of the time. What percentage
goblinko [34]

Answer: She cycles 25% of the time

Step-by-step explanation:

From the question, Sally walks 15% of the time.

She drives 3/5 of the time.

We then convert 3/5 to percentage.

Converting to percentage means multiplying by a factor of 100.

Hence, Sally drives 3/5*100 = 60% of the time.

If Sally walks 15% of the time and drives 60% of the time, adding up the percentage time used by these two media of transportation will give us

60% + 15% = 75%

Hence if she cycles for the remainder of the time, expressing it as percentage would mean subtracting the time used in other means by 100%

Hence it will be 100% - 75% = 25%

8 0
3 years ago
Laura is training for a triathlon. One of her workouts requires her to do 3 rounds of each of the
Vanyuwa [196]

Step-by-step explanation:

<h2><em><u>This triathlon distance requires a 2.4 mile swim (3.9K), 112 mile bike (180.2K), and 26.2 mile run (42.2K). Depending on your fitness level, course conditions, and the weather on race day, you can expect to complete these three legs in about 10 to 17 hours.</u></em></h2>
3 0
2 years ago
Read 2 more answers
A rectangular picture frame has perimeter of 58 inches. The height of the frame is 18 inches. What is the width of the frame?
Stells [14]

Answer:

11 inches

Step-by-step explanation:

A rectangle's perimeter can be found using:

p=2l+2w

We know that the perimeter, p, is 58, and the length/height is 18. Therefore, we can substitute those values in

58=2(18)+2w

Multiply 2 and 18

58=36+2w

Since we want to find the width, we need to get w by itself. First, subtract 26 from both sides

58-36=36-36+2w

22=2w

Since w is being multiplied by 2, divide both sides by 2. This will cancel out the 2, and leave w by itself.

22/2=2w/2

11=w

So, the width is 11 inches

8 0
3 years ago
Write an equation of the line that passes through (2,-1) and is parallel to the line y = -3x + 8.
Anika [276]

Answer:

y = -3x +5

Step-by-step explanation:

parallel lines so slope of the lines will be equal.

m1 = m2

y = mx + b,

y = -3x + b

substituting y = -1 and x = 2

-1 = -3(2) + b

-1 = -6 + b

therefore, b = -1 + 6

b = 5

by substituting b = +5

therefore, the equation is,

y = -3x + 5

4 0
3 years ago
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