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Leokris [45]
2 years ago
14

Please help me. I couldn't find the answer. I need prove how I got the answer as well ​

Mathematics
2 answers:
ZanzabumX [31]2 years ago
5 0

Answer:

I think the answer is 13 car lengths

Step-by-step explanation:

Since a safe following distance to drive is 2 car lengths for every 10mph, you would need to multiply 2 by 6 to get 12 because the car length increase by 2 per 10mph. So increase 10mph 6 times would give you 12 car lengths. Then the remaining 5mph would just mean that you would be 1 car length away because it's half, making you 13 car lengths away at 65mph

Naya [18.7K]2 years ago
4 0

Answer:

13 car lengths

Step-by-step explanation:

65 (1/10) = 6.5

6.5 (2) = 13

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27 is the answer to this question
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3 years ago
The largest Prime number less than 100 is ?
Aleksandr-060686 [28]

Answer: 97

Step-by-step explanation: The first 25 prime numbers (all the prime numbers less than 100) are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97 (sequence) just if you need all the primes

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3 years ago
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Solve the system of equations using any method. 2X – Y + Z = – 2, 6X + 3Y – 4Z = 8, – 3X + 2Y +3Z = – 6
krok68 [10]

Answer:

Z = - 2, Y = 0, X = 0

Step-by-step explanation:

2X – Y + Z = – 2

6X + 3Y – 4Z = 8

– 3X + 2Y +3Z = – 6

isolate "X" in the first equation

2X - Y + Z = - 2 => isolate "2X"

2X = - 2 - Z + Y => divide either side by 2

X = - 1 - Z/2 + Y/2

substitute this value of X in the second two equations (applying the substitution method here)

6(- 1 - Z/2 + Y/2) + 3Y - 4Z = 8,

6Y - 7Z - 6 = 8

- 3(- 1 - Z/2 + Y/2) + 2Y +3Z = - 6,

Y + 9Z + 6/2 = - 6

isolate Y in the second equation (6Y - 7Z - 6 = 8) and substitute in the third equation (Y + 9Z + 6/2 = - 6)

6Y - 7Z - 6 = 8 => isolate 6Y

6Y = 14 + 7Z => divide either side by 6

Y = 7Z + 14/6 => substitute in second equation

7Z + 14/6 + 9Z + 6/2 = - 6 => solve for Z

61Z + 50/12 = - 6, Z = - 2

substitute the value of Z into the equations "Y = 7Z + 14/6" and using the value of Y and Z, substitute into "X = - 1 - Z/2 + Y/2"

Y = (7(- 2) + 14)/6 = 0 / 6

= 0

X = - 1 - (- 2)/2 + 0/2 = - 1 - (-1) + 0

= - 1 + 1 + 0 = 0

6 0
2 years ago
28/z- z/4+1 1/8 when z =4
Paha777 [63]

Answer:

7 1/8 or 7.125

Step-by-step explanation:

first subsitute z for 4

28/4 - 4/4 + 1 1/8

then do 28/4 - 4/4 which is 6,

add that to 1 1/8

and get 7 1/8

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Sladkaya [172]

Answer: 11x1.5=16.5 if im correct

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