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3 years ago

It takes Adara 3 hours to drive from Ashdown to Bridgeton at an average speed of 60 mph.

Mathematics

1 answer:

Scrat [10]3 years ago

8 0

Answer:

61.2 mph

Step-by-step explanation:

Let's first calculate the individual legs of Adara's trip in terms of both time and distance:

Ashdown to Bridgeton

3 hr at 60 mph = 180 miles in 3 hours

Bridgeton to Carton

30 miles at 70 mph: 30 miles/(70 miles/hour) = 0.429 hours

Total Trip

Miles = 180 + 30 = 210 miles

Time = 3 + 0.429 = 3.429 hours

Average speed is (210 miles)/(3.429 hours) = 61.25 or 61.2 miles/hour to 1 decimal point.

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Find the sum of a finite geometric sequence from n = 1 to n = 8, using the expression −2(3)^n − 1.

Kazeer [188]

The sum if the geometric sequence given by:
an=-2(3)^(n-1)
will be:
when:
n=1
an=-2
when n=2
a2=-6
when n=3
a3=-18

when n=4
a4=-54

when n=5
a5=-162

when n=6
a6=-486

when n=7
a7=-1458

when n=8
a8=-4374

thus the summation of the term will be:
Sn=(-4374+-1458+-486+-162+-54+-18+-6+-2)
Sn=-6560
the answer is -6560

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3 years ago

Round 12502 to nearest thousand

dalvyx [7]

12,500 would be the answer

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3 years ago

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James is putting a fence around his square yard. The area of his yard is 100 square feet. How much fencing does James need in to

gtnhenbr [62]

Answer:

40 ft.

Step-by-step explanation:

Because James's yard is a square, we can take the square root of the area to find the side length. The square root of 100 is 10, so we know that one side of his yard will require 10 feet of fencing. Since the yard has 4 sides, we simply need to do 4 * 10 = 40 ft of fencing.

Hope this helps!

3 0

3 years ago

3. BASKETBALL Alonzo and Miguel scored a total of 54 points in the basketball game. Miguel scored four more points than Alonzo.

RSB [31]

Answer:

Alonzo scored 25 points. Miguel scored 29 points.

Step-by-step explanation:

25 plus 25 is 50. Plus 4 is 54.

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3 years ago

Question 6 of 10

nataly862011 [7]

Table B and Graph B is the correct answer

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