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blagie [28]
3 years ago
15

PLZ HURRY!!! WILL MARK BRAINLIEST!!!! For several months, an ice-cream vendor collects data showing the number of cones sold in

a day (c) and the number of degrees above 70°F (t) that the high temperature reaches that day. The vendor finds that there is a positive linear association between c and t that is best modeled by the equation c=3.7t+98 .
Which statement is true?


A.The model predicts that for each additional degree that the high temperature is above 70°F, the total number of cones sold increases by 98.

B.The model predicts that the average number of cones sold in a day is 98.

C.The model predicts that the average number of cones sold in a day is 3.7.

D.The model predicts that for each additional degree that the high temperature is above 70°F, the total number of cones sold increases by 3.7.
Mathematics
2 answers:
MrRissso [65]3 years ago
8 0

Answer: D. The model predicts that for each additional degree that the high temperature is above 70°F, the total number of cones sold increases by 3.7.


Step-by-step explanation:

Given: The vendor finds that there is a positive linear association between c and t (number of cones sold in a day (c) and the number of degrees above 70°F(t) ) that is best modeled by the equation.

c=3.7t+98

Since, 3.75 is the rate of change of number of cones per degrees above 70°F.

Hence, the model predicts that for each additional degree that the high temperature is above 70°F, the total number of cones sold increases by 3.7.

miskamm [114]3 years ago
7 0
<span>D.The model predicts that for each additional degree that the high temperature is above 70°F, the total number of cones sold increases by 3.7.</span>
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A cup of coffee at 85 degrees Celsius is placed in a room at 25 degrees Celsius. Suppose that the coffee cools at a rate of 5 de
bezimeni [28]

Answer: k = - 6.6667

Step-by-step explanation:

this is quite very simple to begin. I would encourage you take other practice questions similar to help with understanding it.

let us begin.

Given that ;

dT/dt = k ( Tm - T)       where Tm is the temp of the medium

dT/dt = 5 degrees Celsius per minute    when T = 70

so we have that, 5 = k ( 25 - 70)

remember to convert 5 degree celsius per minute to seconds

we have that;

5*60(sec) = k ( 25 - 70)  

k = 5*60 / ( 25 - 70)

k = - 6.6667

note K is negative because we consider it for cooling process  (temp decreasing).

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postnew [5]

Answer:

m<1=145°

m<2=35°

m<3=35°

Step-by-step explanation:

m<1=145°

m<2=35°

m<3=35°

6 0
3 years ago
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A rectangular rug has an area of 1 4/5 square yards. The width of the rug is 1 1/2 yards. What is the length,in yards,of the rug
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Answer:

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makvit [3.9K]

Answer:

2. 3/4 x 5/9 = 3x5/4x9 = 15/36 = 5/12

4. 4/7 x 1/2 = 4x1/7x2 = 4/14 = 2/7

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Step-by-step explanation:

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Papessa [141]

A=148°

B=148°

Step-by-step explanation:

180-38=148°

because A and B are equal, they're both 148°

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