Find the difference in longitude.

Question

Find the difference in longitude.

Asked on April 23, 2026Geography

This geography problem is solved step by step below, with detailed explanations to help you understand the method and arrive at the correct answer.

Accepted Answer · 2026-04-23T20:23:17.462Z

You're on a roll — here are the solutions to the geography questions: 67. Identify the difference in time between $10^\circ$ E and $22^\circ$ E Step 1: Find the difference in longitude. Since both longitudes are in the same hemisphere (East), subtract them. $$ \text{Difference in longitude} = 22^\circ \text{ E} - 10^\circ \text{ E} = 12^\circ $$ Step 2: Convert the longitude difference to time difference. We know that $1^\circ$ of longitude corresponds to 4 minutes of time. $$ \text{Time difference} = 12^\circ \times 4 \text{ minutes/degree} = 48 \text{ minutes} $$ The difference in time is $\boxed{\text{48 minutes}}$. 68. Find the difference on $30^\circ$ W and $8^\circ$ E Step 1: Find the difference in longitude. Since the longitudes are in different hemispheres (West and East), add their absolute values. $$ \text{Difference in longitude} = 30^\circ \text{ W} + 8^\circ \text{ E} = 38^\circ $$ Step 2: Convert the longitude difference to time difference. $$ \text{Time difference} = 38^\circ \times 4 \text{ minutes/degree} = 152 \text{ minutes} $$ Step 3: Convert minutes to hours and minutes. $$ 152 \text{ minutes} = \frac{152}{60} \text{ hours} = 2 \text{ hours and } 32 \text{ minutes} $$ The difference in time is $\boxed{\text{2 hours and 32 minutes}}$. 69. What is the local time of Antananarivo at $47^\circ$ E longitude when the time in Kigali at $30^\circ$ E longitude is 7:00 am. Step 1: Find the difference in longitude. Both longitudes are in the East, so subtract them. $$ \text{Difference in longitude} = 47^\circ \text{ E} - 30^\circ \text{ E} = 17^\circ $$ Step 2: Convert the longitude difference to time difference. $$ \text{Time difference} = 17^\circ \times 4 \text{ minutes/degree} = 68 \text{ minutes} $$ Step 3: Convert minutes to hours and minutes. $$ 68 \text{ minutes} = 1 \text{ hour and } 8 \text{ minutes} $$ Step 4: Calculate the local time at Antananarivo. Antananarivo ($47^\circ$ E) is to the East of Kigali ($30^\circ$ E), so its time will be ahead. $$ \text{Local time at Antananarivo} = 7:00 \text{ am} + 1 \text{ hour } 8 \text{ minutes} = 8:08 \text{ am} $$ The local time in Antananarivo is $\boxed{\text{8:08 am}}$. 70. Determine the local time at A $14^\circ$ E longitude when the time at B $48^\circ$ W longitude is 11:56 pm. Step 1: Find the difference in longitude. Since the longitudes are in different hemispheres (East and West), add their absolute values. $$ \text{Difference in longitude} = 14^\circ \text{ E} + 48^\circ \text{ W} = 62^\circ $$ Step 2: Convert the longitude difference to time difference. $$ \text{Time difference} = 62^\circ \times 4 \text{ minutes/degree} = 248 \text{ minutes} $$ Step 3: Convert minutes to hours and minutes. $$ 248 \text{ minutes} = \frac{248}{60} \text{ hours} = 4 \text{ hours and } 8 \text{ minutes} $$ Step 4: Calculate the local time at A. Location A ($14^\circ$ E) is to the East of location B ($48^\circ$ W), so its time will be ahead. $$ \text{Local time at A} = 11:56 \text{ pm} + 4 \text{ hours } 8 \text{ minutes} $$ Adding 4 minutes to 11:56 pm makes it 12:00 am (midnight) of the next day. Then add the remaining 4 hours and 4 minutes: $$ 12:00 \text{ am} + 4 \text{ hours } 4 \text{ minutes} = 4:04 \text{ am (next day)} $$ The local time at A is $\boxed{\text{4:04 am}}$. 71. Identify the difference in time in $7^\circ$ E and $5^\circ$ W. Step 1: Find the difference in longitude. Since the longitudes are in different hemispheres (East and West), add their absolute values. $$ \text{Difference in longitude} = 7^\circ \text{ E} + 5^\circ \text{ W} = 12^\circ $$ Step 2: Convert the longitude difference to time difference. $$ \text{Time difference} = 12^\circ \times 4 \text{ minutes/degree} = 48 \text{ minutes} $$ The difference in time is $\boxed{\text{48 minutes}}$. Got more? Send 'em!

Accepted Answer · 2026-04-23T20:23:17.462Z

You're on a roll — here are the solutions to the geography questions: 67. Identify the difference in time between $10^\circ$ E and $22^\circ$ E Step 1: Find the difference in longitude. Since both longitudes are in the same hemisphere (East), subtract them. $$ \text{Difference in longitude} = 22^\circ \text{ E} - 10^\circ \text{ E} = 12^\circ $$ Step 2: Convert the longitude difference to time difference. We know that $1^\circ$ of longitude corresponds to 4 minutes of time. $$ \text{Time difference} = 12^\circ \times 4 \text{ minutes/degree} = 48 \text{ minutes} $$ The difference in time is $\boxed{\text{48 minutes}}$. 68. Find the difference on $30^\circ$ W and $8^\circ$ E Step 1: Find the difference in longitude. Since the longitudes are in different hemispheres (West and East), add their absolute values. $$ \text{Difference in longitude} = 30^\circ \text{ W} + 8^\circ \text{ E} = 38^\circ $$ Step 2: Convert the longitude difference to time difference. $$ \text{Time difference} = 38^\circ \times 4 \text{ minutes/degree} = 152 \text{ minutes} $$ Step 3: Convert minutes to hours and minutes. $$ 152 \text{ minutes} = \frac{152}{60} \text{ hours} = 2 \text{ hours and } 32 \text{ minutes} $$ The difference in time is $\boxed{\text{2 hours and 32 minutes}}$. 69. What is the local time of Antananarivo at $47^\circ$ E longitude when the time in Kigali at $30^\circ$ E longitude is 7:00 am. Step 1: Find the difference in longitude. Both longitudes are in the East, so subtract them. $$ \text{Difference in longitude} = 47^\circ \text{ E} - 30^\circ \text{ E} = 17^\circ $$ Step 2: Convert the longitude difference to time difference. $$ \text{Time difference} = 17^\circ \times 4 \text{ minutes/degree} = 68 \text{ minutes} $$ Step 3: Convert minutes to hours and minutes. $$ 68 \text{ minutes} = 1 \text{ hour and } 8 \text{ minutes} $$ Step 4: Calculate the local time at Antananarivo. Antananarivo ($47^\circ$ E) is to the East of Kigali ($30^\circ$ E), so its time will be ahead. $$ \text{Local time at Antananarivo} = 7:00 \text{ am} + 1 \text{ hour } 8 \text{ minutes} = 8:08 \text{ am} $$ The local time in Antananarivo is $\boxed{\text{8:08 am}}$. 70. Determine the local time at A $14^\circ$ E longitude when the time at B $48^\circ$ W longitude is 11:56 pm. Step 1: Find the difference in longitude. Since the longitudes are in different hemispheres (East and West), add their absolute values. $$ \text{Difference in longitude} = 14^\circ \text{ E} + 48^\circ \text{ W} = 62^\circ $$ Step 2: Convert the longitude difference to time difference. $$ \text{Time difference} = 62^\circ \times 4 \text{ minutes/degree} = 248 \text{ minutes} $$ Step 3: Convert minutes to hours and minutes. $$ 248 \text{ minutes} = \frac{248}{60} \text{ hours} = 4 \text{ hours and } 8 \text{ minutes} $$ Step 4: Calculate the local time at A. Location A ($14^\circ$ E) is to the East of location B ($48^\circ$ W), so its time will be ahead. $$ \text{Local time at A} = 11:56 \text{ pm} + 4 \text{ hours } 8 \text{ minutes} $$ Adding 4 minutes to 11:56 pm makes it 12:00 am (midnight) of the next day. Then add the remaining 4 hours and 4 minutes: $$ 12:00 \text{ am} + 4 \text{ hours } 4 \text{ minutes} = 4:04 \text{ am (next day)} $$ The local time at A is $\boxed{\text{4:04 am}}$. 71. Identify the difference in time in $7^\circ$ E and $5^\circ$ W. Step 1: Find the difference in longitude. Since the longitudes are in different hemispheres (East and West), add their absolute values. $$ \text{Difference in longitude} = 7^\circ \text{ E} + 5^\circ \text{ W} = 12^\circ $$ Step 2: Convert the longitude difference to time difference. $$ \text{Time difference} = 12^\circ \times 4 \text{ minutes/degree} = 48 \text{ minutes} $$ The difference in time is $\boxed{\text{48 minutes}}$. Got more? Send 'em!

Find the difference in longitude.