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Nataly_w [17]
3 years ago
14

PLEAZE HELPPPPP

Mathematics
1 answer:
ankoles [38]3 years ago
4 0
Anwser has to be A hope im helping

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Two trains leave stations 360 miles apart at the same time and travel toward each other. One train travels at 70 miles per hour
cricket20 [7]
S=d/t     ⇒d=s*t
s=speed
d=distance
t=time

The first train :
d=x

x=70 miles/h*t                             ⇒   x=70t  (1)

The second train
d=360 miles - x

360 miles - x=80 miles/h*t          ⇒360-x=80t   ⇒ x=360-80t   (2)

therefore, with the equations (1) and (2) we have a systeme of equations:

x=70t
x=360-80t

we can solve this system of equations by equalization method.

70t=360-80t
70t+80t=360
150t=360
t=360/150=2.4     (≈2 hour  24 minutes)

Answer:  the first train meet with the second train in 2 hour 24 minutes. 


3 0
3 years ago
Read 2 more answers
Simplify the expression:<br><br> 4(9p + 1)
Tju [1.3M]

Answer:

36p+4

Step-by-step explanation:

4 0
3 years ago
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William bought some tickets to see his favorite singer. He bought some adult tickets and some children tickets, for a total of 1
Viefleur [7K]
Hello!

Let 'a' stand for adult tickets and 'c' for children tickets.

a + c = 15

(Both adult and children tickets make up a total of 15 tickets).

30a + 20c = 330

a = 3

c = 12

A N S W E R:

William bought 3 adults tickets and 12 children's tickets.

5 0
3 years ago
What’s the answer ????
anzhelika [568]
The first one is the answe<span>r.</span>
5 0
3 years ago
Which is not an equation of the line going through (3,-6) and (1, 2)?
Olegator [25]

Answer:

○ \displaystyle y - 1 = -4(x - 2)

Step-by-step explanation:

When you plug these coordinates into this equation, they will be confirmed as <em>false</em>.

I am joyous to assist you anytime.

3 0
3 years ago
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