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alexandr1967 [171]
3 years ago
14

At the same time, two trains start toward each other on parallel tracks, 450 miles apart. Train A’s constant rate is 55 mph. Tra

in B’s is 65 mph. How long before they pass each other?
A. 5.25 hours
B. 3.75 hours
C. 2.25 hours
D. 1.75 hours
which one im confuzzled
Mathematics
1 answer:
noname [10]3 years ago
6 0

Answer:

Its B. 3.75

Step-by-step explanation:

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Students on the CARE Team are selling puppies, yes, puppies! They earn $0.40 on each puppy they sell. Their goal is to earn more
cricket20 [7]
0.4 x >= 327 Divide by 0.4
x >= 327/0.4 which is not going to be an even number.
x >= 817. 5 puppies. So they need to sell 0.5 more puppies. Better round this quickly before someone decides to do something stupid to get the extra 1/2 puppy. For us it's simple. Just add a 1/2 puppy more.

x >= 818 puppies <<<<==== answer.
3 0
3 years ago
in a round robin tennis tournament involving 7 players, each player will play every other player twice. How many total matches w
baherus [9]
Total number of ways to make a pair:

The first player can be any one of 7 .  For each of those . . .
The opponent can be any one of the remaining 6 .

Total ways to make a pair  =  7 x 6 = 42 ways .

BUT ... every pair can be made in two ways ...  A vs B  or  B vs A .
So 42 'ways' make only (42/2) = 21 different pairs.

If every pair plays 2 matches, then  (21 x 2) = <em><u>42 total matches</u></em> will be played.


Now, is that an elegant solution or what !
8 0
4 years ago
1
Annette [7]

Answer:

c

Step-by-step explanation: If you do the math you can clearly see and I got the answer correct.

7 0
3 years ago
Need Answer ASAP, help me please, offering 80 points.
Fed [463]

Hey there! Since these shows you must find the graph so finally the answers should be

1.The slope of 1/5

2.The slope of DC =2/3

3.The slope of AB= 1/4

4.The slope of DA=7/2

5. B. Yes the quadrilateral has two pairs of of opposites that are perpendicular and all of its interior angles  are right angles.



Hope this helped.

7 0
3 years ago
Read 2 more answers
Consider the function represented by 9x+3y= 12 with x as the independent variable. How can this function be written using
Ivenika [448]

Answer:

f(x)=-3x+4

(can't see some of your choices)

Step-by-step explanation:

We want x to be independent means we want to write it so when we plug in numbers we can just choose what we want to plug in for x but y's value will depend on our choosing of x.

So we need to solve for y.

9x+3y=12

Subtract 9x on both sides

     3y=-9x+12

Divide both sides by 3:

     y=-3x+4

Replace y with f(x).

    f(x)=-3x+4

6 0
3 years ago
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