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Mamont248 [21]
3 years ago
14

Help please, I will give brain list

Mathematics
1 answer:
lara [203]3 years ago
5 0
A=WL
115=5L
Divide by 5
23=L
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A boat can travel 23mph in still water. If it travels 248 miles with the current in the same length of time it travels 120 miles
mixas84 [53]

Answer: the speed of the current is 8 mph.

Step-by-step explanation:

Let represent the speed of the current

boat can travel 23mph in still water. This means that the total speed with which the boat travelled is (23 + x) mph.

Time = distance/speed

If it travels 248 miles with the current, it means that the time it took the boat to travel with the current is

248/(23 + x)

in the same length of time it travels 120 miles against the current. This means that the total speed with which the boat travelled is (23 - x) mph. The time it took the boat to travel against the current is

120/(23 - x)

Since the time is the same, it means that

248/(23 + x) = 120/(23 - x)

Cross multiplying, it becomes

248(23 - x) = 120(23 + x)

5704 - 248x = 2760 + 120x

120x + 248x = 5704 - 2760

368x = 2944

x = 2944/368

x = 8 mph

4 0
3 years ago
Please help me ma.. pleaseee
BabaBlast [244]

Answer:

2461.76mm^2

Step-by-step explanation:

Pi times radius squared

3.14 times 28^2

6 0
3 years ago
Read 2 more answers
15. The distance from the center of a round table top to the edge of the table top is 4 ft. What's the area of the table top?
klasskru [66]
50.24 because you have to remember Pi times radius squared is area of a circle 
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4 years ago
Mera bought 5 different chocolates. the average price per chocolate was 14$. if the price of four chocolates were 8.50$ , 23.25$
Katarina [22]
8.50+23.25+18+10.75 +x /5=14
Multiply both sides by 5.

60.50. + x =70
Subtract 60.50 from both sides

X= 9.50. The other candy bar costs 9.50
3 0
3 years ago
Help plz need answers less than 10 minutes
alexdok [17]

Answer:

the answer wouldbe 8585434930.123

Step-by-step explanation:

7 0
3 years ago
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