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Leno4ka [110]
3 years ago
7

In about how many seconds could a 9-year old boy run 100 meters?

Mathematics
1 answer:
Alexxandr [17]3 years ago
7 0

Answer:

23 seconds if you are competitive

Step-by-step explanation:

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In a certain clothing store, 6 shirts and 3 ties cost $79.50, and 3 shirts and 2 ties cost $41. Determine the cost of each tie.
SashulF [63]
Https://us-static.z-dn.net/files/d18/ce7107c58c34f8e2cf6c1f3e05752043.jpeg

8 0
2 years ago
Read 2 more answers
Part 1:
emmasim [6.3K]
Here are my answers to the given questions above:
Part 1. Here is my example of a real life scenario that describes what is happening. Let us say, I have 2 cookies and the bottle of milk costs 11 dollars, and 3 cookies and 4 bottles of milk cost 24 dollars.
Part 2. 
y=11-2x
3x+4(11-2x)=24
3x+44-8x=24
-5x=-20
x=4
y=11-8
y=3
Therefore, each cookie costs 4 dollars, and a bottle of milk costs 3 dollars.
Hope this answer helps. Let me know if you need more help next time.
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7 0
3 years ago
Percent of change 125 is increased to 200
Montano1993 [528]

Answer:

60

Step-by-Step Explanation:

(200-125):125*100 =

(200:125-1)*100 =

160-100 = 60

Now we have: What is the percentage increase/decrease from 125 to 200 = 60

6 0
2 years ago
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Evaluate the expression 100 - 9(d + 6) for d = 2. *
alexdok [17]
100-9(2+6)=100-9(8)=100-72=
so the answer is 28
3 0
3 years ago
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What would the amplitude be? How do I find it? Should I add 1.25+6.75 then divide by 2 ?
Elis [28]

Answer:

2.75

Step-by-step explanation:

The amplitude is half of the difference between the highest and lowest y-coordinates.

amplitude = 0.5|6.75 - 1.25| = 0.5(5.5) = 2.75

3 0
2 years ago
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