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labwork [276]
3 years ago
6

alex has a 48 mile trail first half of the time he was biking twice as fast as the second half of the time if he spent 4 hours o

n the road how fast was he biking at first
Mathematics
1 answer:
Irina-Kira [14]3 years ago
4 0

Answer:

16 mph

Step-by-step explanation:

Givens:

4 hours total time

48 miles total distance

So our equation should look like this.

48 = 2x(2) + x(2)

Where x = speed second half of trip.

x = 8

x*2 = 16 mph

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How many grams are there in 4.5 kilograms
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Please help me,I need help understand so I can do my own! Worth 20 points!!
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b) 4a²-2a-16   <---- same tell-tale guy, a² has a higher exponent than say                                            "a", so, the degree is the higher exponent, degree of 2
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