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zvonat [6]
3 years ago
14

A family's vacation destination is 850 miles from their home. They travel by car 6 hours on the first day of their trip. Their a

verage speed is 45 mph. The next day they travel 7 hours, averaging the same speed. How many miles are left for the family to travel?
Mathematics
2 answers:
tester [92]3 years ago
8 0

Answer:

265 miles.

Step-by-step explanation:

damaskus [11]3 years ago
4 0

Answer:256

Step-by-step explanation:

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Answer:

\text{1. } v=16t+\frac{h-c}{t},\\\text{2. }90\:\mathrm{ft/s}, \\\text{3. Cannot be determined}

Step-by-step explanation:

1. The initial equation given to us is h=-16t^2+vt+c. Rearranging the equation to isolate v, we have:

vt=16t^2+h-c,\\\boxed{v=16t+\frac{h-c}{t}}

2. Using the equation we rearranged in part 1, we can substitute given values:

v=16(3)+\frac{131-5}{3},\\v=48+42=\boxed{90\:\mathrm{ft/s}}

3. We see from our equation in part 1 (v=16t+\frac{h-c}{t}) that when t=0, the denominator of our fraction will be equal to 0. Since we cannot divide by 0, the velocity remains undefined and cannot be determined.

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3 years ago
-0.5(x + 0.3) – 0.2x = 4.1
lys-0071 [83]

Answer:

x=-8

Step-by-step explanation:

I always change the decimals into whole numbers by multiplying them by 10.  If you do this, it is much easier to solve.  All you do is multiply every term by 10.

the equation changes to

-5(x+3)-2x=41

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combine like terms

-7x-15=41

bring the 15 over to the 41

-7x=56

divide everything by 7

-x=8

change x to a positive

x=-8

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You withdraw $29.79 from your bank account. Now your balance
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Answer:

<h2>you had $9.28 prior to making the withdrawal</h2>

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Step-by-step explanation:

<h2>i hope this help you</h2>
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