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gavmur [86]
2 years ago
10

Car A went 60km 3/4 of an hour. car b went 80km in 4/5 of an hour. witch car is faster

Mathematics
1 answer:
Lostsunrise [7]2 years ago
3 0

Answer:

80km in 4/5

Step-by-step explanation:

60km × <u> </u><u> </u><u> </u><u>3</u><u> </u><u> </u>= 15×3=45

4

80km × <u> </u><u> </u><u> </u><u>4</u><u> </u><u> </u>= 16×4 =64

5

64 is the answer

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USPshnik [31]

Answer:

c = -75/14 OR c = -5.357143

Step-by-step explanation:

Simplify both equations:

1.2x + 7 - 5x =

-3.8x + 7

2.2c - 3 = 2(6 - c) + 7c =

c = −5.357143

OR

c = -75/14

The question wasn't quite clear, if this wasn't correct, please elaborate on what needed to be solved, and I'll fix my answer.

Hope this helped!

5 0
3 years ago
Read 2 more answers
What are the solution(s) to the quadratic equation 40 - x2 = 0?
Zanzabum

Answer:

  x=\pm2\sqrt{10}

Step-by-step explanation:

You want to solve ...

  40 -x^2=0\\\\40=x^2\qquad\text{add $x^2$}\\\\\pm\sqrt{40}=x\qquad\text{take the square root}\\\\\boxed{x=\pm2\sqrt{10}}\qquad\text{simplify}

5 0
3 years ago
Help please
algol [13]

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6 0
2 years ago
Show answer in lowest terms. 3 1 /4 - 1 3/16=
SpyIntel [72]
3 - 1 = 2
1/4 - 3/16 = 4/16 - 3/16 = 1/16

answer is : 2 1/16 (in mixed number) or 33/16 (in improper fraction)
4 0
3 years ago
Solve the system of linear equations. separate the x- and y- values with a coma. 20x=-58-2y
lianna [129]
The best way to solve is by using elimination method.
20x = -58 - 2y
17x = -49 - 2y
Multiply second equation by -1
20x = -58 - 2y
-17x = 49 + 2y
Add equations.
3x = -9 
Divide.
x = -3
Plug in -3 into one of the equations.
17(-3) = -49 - 2y
-51 = -49 - 2y
Add 49 to both sides.
-2 = -2y
Divide.
1 = y
So your solution is (-3, 1).
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6 0
3 years ago
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