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Georgia [21]
3 years ago
7

Please someone help! I’m not sure what kind of problem this is. I’m confused. (3)

Mathematics
1 answer:
weeeeeb [17]3 years ago
7 0
For this question, you need to find the average number of minutes each girl trained for,

let me know if you would like help solving this :)
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A wheelchair ramp rises 1.5 feet for every 18 feet of horizontal distance it covers. Find the rate of change of the ramp
Ierofanga [76]
By definition the rate of change of a function is given by:
 AVR =  \frac{Change In Y}{Change In X}
 Or equivalently:
 AVR = \frac{y2 - y1}{x2 - x1}
 Substituting the values given in the problem we have:
 AVR = \frac{1.5}{18}
 Rewriting we have:
 AVR = 0.08
 Answer:
 
the rate of change of the ramp is:
 
AVR = 0.08
7 0
3 years ago
The school that Trevon goes to selling tickets to the annual dance competition. On the first day of tickets sales the school sol
KiRa [710]

Answer:

  both kinds of tickets are $5 each

Step-by-step explanation:

Let s and c represent the dollar costs of a senior ticket and child ticket, respectively. The problem statement describes two relationships:

  12s + 5c = 85 . . . . . revenue from the first day of sales

  6s + 9c = 75 . . . . . . revenue from the second day of sales

Double the second equation and subtract the first to eliminate the s variable.

  2(6s +9c) -(12s +5c) = 2(75) -(85)

  13c = 65 . . . . . simplify

  65/13 = c = 5 . . . . . divide by the coefficient of c

Substitute this value into either equation. Let's use the second one.

  6s + 9·5 = 75

  6s = 30 . . . . . . . subtract 45

  30/6 = s = 5 . . . divide by the coefficient of s

The price of a senior ticket is $5; the price of a child ticket is $5.

5 0
3 years ago
#20
yKpoI14uk [10]

0.48 miles

Step-by-step explanation:

Step 1

It is given that the grade(slope) is 4%. This means that for every 100 miles traveled, the elevation changes by 4 miles.

Step 2

Hence for a distance of 12 miles , the elevation changes by 12*4/100 = 48/100 = 0.48 miles. [Using direct proportion]

6 0
3 years ago
Is 4 to 7 the same as 7 to 4? Explain why or why not.
Galina-37 [17]

Answer: no

Step-by-step explanation:

4 is smaller than 7. And 7 is greater than 4 so let's just say ur solving a division problem multiplication ect you always need to put the greater number first!

So yeah hope I helped! <3

3 0
2 years ago
Read 2 more answers
Which is a true statement?
Shkiper50 [21]
A) -15 > -5 is false.
B) -4 > 0 is 0 < -4
C) -12 < -3 is always true. There are many solutions.
D) 2 < -5 is false.

Answer: C) -12 < -3
6 0
3 years ago
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