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Bezzdna [24]
3 years ago
13

Find the unknown 4×?× 8=64

Mathematics
2 answers:
iVinArrow [24]3 years ago
7 0
2 is the correct answer....gitty up
lara31 [8.8K]3 years ago
4 0
4*2*8=64 because 4 times 2 equals 8 and multiply that to 8 equals 64
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timofeeve [1]
Multiple the two Collins
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A ferry departs from a port along the Sands River at 10:00 am. The ferry travels at a speed of 15 mph in still water and returns
jek_recluse [69]

Answer:

Speed of river's current = 5 mph

Step-by-step explanation:

Let 'd' be the distance covered  

 Let x be the speed of the rivers current

Speed upstream = 15-x

speed downstream = 15+x

Time = distance / speed

time upstream = \frac{d}{15-x}

time downstream = \frac{d}{15+x}

the ferry trip upstream takes twice as long as its return trip downstream

\frac{d}{15-x}= \frac{2d}{15+x}

divide both sides by d

\frac{1}{15-x}= \frac{2}{15+x}

cross multiply

15+x= 2(15-x)

15+x= 30-2x

Add 2x on both sideds

15+3x= 30

subtract 15 from both sides and divide by 3

3x=15

x=5

Speed of river's current = 5 mph

8 0
3 years ago
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dexar [7]
It’s the 2nd answer to the right
3 0
3 years ago
Help me out plz it’s due rn
MatroZZZ [7]

Answer:

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
What is the total amount and the amount of interest earned on $5,000 at 8% for 20 years? Total Amount Interest Amount compounded
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Answer:

final balance = 24,634.02

compound interest = 19,634.02

Step-by-step explanation:

3 0
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