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Shtirlitz [24]
3 years ago
12

if a car drives 80 miles in 1 hours how many miles will the car travel in 30 minutes at this rate? how many miles will it travel

in 45 minutes?
Mathematics
1 answer:
eimsori [14]3 years ago
4 0
40 miles in 30 minutes, 60 miles in 45 minutes

divide 80 by 60 (mins in a hour) then multiply that’s by the number of minutes (30,45)
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We have x = 7 so now solve for y by replacing x with 7 in this equation 2x + y = 20
Ivahew [28]

Answer:

y=6

Step-by-step explanation:

2(7)=14.

subtract both sides by 14.

y=6

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3 years ago
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in a hotel ,100 bulbs each of 60W are lightened for 6 hours a day and 40 fans each of 50Wvate run for 10 hours a day . calculate
alekssr [168]

Answer:

1680 kwhr

Step-by-step explanation:

See attached for explanation.  I converted watt*hr to kW*hr by dividing by 1000.

Fans Bulbs  

 40         100  

 50          60      W

  10            6       hours/day

20000 36000 W*hr/day

 30          30 days/month

600000 1080000    W*hr/month

  600      1080   kWhr/month

 

Total = 1680 kWhr/month

5 0
2 years ago
what is one and one half divided by one and one sixth and what is three fourths divided by one and three eights (brainliest will
butalik [34]
1 1/2 divided by 1 1/6 equals 1.28571429
Rounded: 1.28, 1.29, or 1.30 (depends on what they ask for)

3/4 divided by 1 3/8 equals 0.54545455
Rounded: 0.54 or 0.55
6 0
3 years ago
The area of the U.S. is about 3.931 million square miles. Approximately 570000 square miles are worked for food production. What
PSYCHO15rus [73]

Answer:

Step-by-step explanation:

Just estimating, about 15%

% = Land used for food production/ Total Area  * 100

% = (570000 / 3.931 * 10^6) * 100%

% = 14.5%

3 0
3 years ago
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