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natita [175]
3 years ago
14

Nicole drove six miles to Megan's house at thirty-seven mph. She then drove seventeen miles to Sarah's house. For the entire tri

p, Nicole averaged a speed of 43 231/905 mph. What was her average speed driving from Megan's to Sarah's house?
Mathematics
1 answer:
DedPeter [7]3 years ago
3 0
Speed = distance / time . . . . . . . . easy to remember: speed is usually miles/hour

43 231/905 = (6 +17)/((6/37 +t) . . . . t is the travel time from Megan's to Sarah's
6/37 +t = 23/(43 231/905) = 905/1702
t = 905/1702 -6/37 = 17/46

The average speed for the trip from Megan's to Sarah's was (17 mi)/(17/46 h) = 46 mi/h.
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A student makes money by watching the neighbors' dog. The situation is modeled in the graph below. Money Made 130 120 110 100 90
saul85 [17]

Answer:

A student makes money by watching the neighbors' dog. The situation is modeled in the graph below. Money Made 130 120 110 100 90 80 Fee (dollars) 70 60 50 40 30 20 10 0 1 2 3 7 8 9 4 5 6 Time (days) 10 Select the statement that describes the relationship between the amount of money the student makes and time in days. The student charges $11 plus an additional $20 per day, The student charges $20 plus an additional $11 per day. The student charges $20 plus an additional $10 per day.​

Step-by-step explanation:

4 0
2 years ago
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motikmotik

Answer:

hi

Step-by-step explanation:

{5}^{2}  +  {x}^{2}  =  {7}^{2}  \\ 25 +  {x}^{2}  = 49 \\  {x}^{2}  = 49 - 25 \\  {x}^{2}  = 24 \\ x =  \sqrt{24}

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6 0
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nalin [4]

The number of seconds it takes for the waste to hit the ground for the given function is: 5 seconds.

<h3>How to Evaluate a Function?</h3>

We are given the function of height to time as, h(t) = -16t² + initial height, and we have the following:

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Plug in the values into the equation of the function

0 = -16t² + 400

Solve for t

0 - 400 = -16t²

-400 = -16t²

-400/-16 = t²

400/16 = t²

√(400/16) = t

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5 = t

t = 5

The number of seconds it takes is: 5 seconds.

Learn more about functions on:

brainly.com/question/10439235

#SPJ1

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