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jek_recluse [69]
2 years ago
9

Determine the correct scientific notation form of the number. 627,000,000

Mathematics
1 answer:
GREYUIT [131]2 years ago
8 0

Answer:

6.27 x 10 ^ 8

Step-by-step explanation:

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jill bikes for 1/5 of an hour at 16 mph and then walks for 3/7 hour at 5 miles per hour how much farther did she bike then walk
Montano1993 [528]

Ans: 1.1 miles more

Speed = distance/time

Time is 1/5 of an hour

1/5 of 1hr = 1/5 or 0.2 hrs

Speed = 16 mph

So, we're after distance.

Distance = speed x time

= 16mph x 0.2

= 3.2 miles

Walks for 3/7 hour at 5 miles per hour :

Time & speed given, distance is what we're after.

(3/7 of 1hr is 3/7)

Distance = speed x time

= 5mph x 3/7

= 15/7 miles or 2.14285...miles

So, distance is about 2.1 miles to 1 d.p

Thus, 3.2 - 2.142... (the full ans) = 1.057... miles

Well, he biked 1.06 miles or 1.1 miles (depending on how you want to round it) more than walking.

Hope this helps!

7 0
2 years ago
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city water tank holds 20 gallons of water. A technician empties 25% of the tank. How many more gallons of water must be removed
eduard

Answer:

7

Step-by-step explanation:

7 0
2 years ago
Linette buys a bracelet for $13.50 plus a 7% tax. Sheila buys a bracelet for $12 plus a 7% tax. What is the sum, in dollars, tha
Zinaida [17]

Answer:

Linette paide $14.45 and Sheila paid $12.84 in total that is $27.29.

Step-by-step explanation:

5 0
2 years ago
17. In a recent l0-year period, the change
Ronch [10]

Answer:

i think it would be 5,000 but im not for sure

Step-by-step explanation:

4 0
3 years ago
Which equation represents the line that passes through (-8,11) and (4,7/2)
Masja [62]

Answer:

Step-by-step explanation:

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