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Zielflug [23.3K]
3 years ago
12

A plane flying from City A to City B travels x miles per hour for a total of 4.5 hours. The plane takes the same route on the re

turn trip, traveling 25 miles per hour faster for a total of 4 hours. What is the total distance that the plane travels?
Mathematics
1 answer:
Oksana_A [137]3 years ago
4 0

Answer:

1800 miles

Step-by-step explanation:

Distance = rate X time.   D=R x T

d=x(4.5)

d=4.5x.      (First trip)

D=(x+25)(4)

D= 4x + 100.  (Return trip)

Total distance

4.5x = 4x +100

X = 200

4.5(200) = 4(200) + 100

1800

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Stella [2.4K]

9514 1404 393

Answer:

  48 mL

Step-by-step explanation:

The amount of white paint she added is 40/5 = 8 times the amount she already had. So, Molly needs to add 6·8 = 48 ml of blue paint to her mix.

6 0
2 years ago
Y=x^2+bx+c;(-2,3)
Maksim231197 [3]
<h3>Answer:  b = 4 and c = 7.</h3>

===============================================

Explanation:

Comparing y = x^2+bx+c to y = ax^2+bx+c, we see that a = 1.

The vertex given is (-2,3). In general, the vertex is (h,k). So h = -2 and k = 3.

Plug those three values into the vertex form below

y = a(x-h)^2 + k

y = 1(x-(-2))^2 + 3

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y = x^2+4x+4 + 3

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8 0
3 years ago
Solve for x<br> 2/(7x) = 6/5<br><br> 5/21<br> -21/5<br> 21/5<br> I don't know<br> - 5/21
djverab [1.8K]
The answer is:  [A]:  " \frac{5}{21} " .
________________________________________
Given: 

2/ (7x) = 6/5; 

→  (6/5) * (7x) = 2 ; 

42x / 5 = 2 ; 

42x = 2*5 ; 

42x = 10 ; 

42x /42 = 10/42 ; 

x = 10/42 = (10÷2) / (42÷2) = 5/21 ; 

x = \frac{5}{21} ;

→  which is:  Answer choice:  [A]:  " \frac{5}{21} " .
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7 0
3 years ago
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NeX [460]
Maybe solve by dividing. I think 5/6. Sorry math isn’t my strong suit. I’m good at reading.
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3 years ago
M/4 - 3 = 5 HELPPPPPPPPP PLZZZXZZZZZZZZZZZZZZZZZZ
Alex73 [517]
M-32 should be correct
3 0
3 years ago
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