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Mashcka [7]
3 years ago
6

Which is more valuable a pile of pennies equaling your weight or a stack of quarters equaling your height?

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
7 0

Answer:

A pile of pennies

Step-by-step explanation:

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Joe wants to find out volume of his marble . He fills a beaker with 100ml of water and then drops his marble in the breaker. His
almond37 [142]

Answer:

The volume of the marble is 47 ml

The volume of the water is 100 ml

Step-by-step explanation:

we know that

The volume of the marble is equal to the change in water level

so

To find out the volume of the marble subtract 100 ml from 147 ml

147-100=47\ ml

The volume of the water no change

The volume of the water is 100 ml

6 0
3 years ago
A motorboat maintained a constant speed of 15 miles per hour related to water going 44 miles upstream then returning the total t
yanalaym [24]

The speed of the current is 13 mph

<h3>What is speed?</h3>

speed refers to distance travelled per unit time. This is a vector quantity this implies that it has magnitude and direction.

The unit for speed as used here is miles per hour and can be written in short form as mph

<u>Given data</u>

speed of boat = 15 miles per hour = 15 mph

distance = 44 miles upstream

total time for the trip = 7.5 hours

<h3>solving for the speed of the current</h3>

let the water current be x

speed = distance / time

the total travel time upstream and downstream is known

for upstream

15 - x = 44 / time

time = 44 / 15 - x

for downstream

15 + x = 44 / time

time = 44 / 15 + x

total time = time for upstream + time for downstream = 7.5

7.5 = (44 / 15 - x ) + ( 44 / 15 + x )

7.5 = ( 44 ( 15 + x ) + 44 ( 15 - x ) ) / ( 15 + x  )( 15 - x )

7.5 ( 15 + x  )( 15 - x ) = 210 +44x + 210 - 44x

7.5 ( 225 - x ^ 2 ) = 420

( 225 - x ^ 2 ) = 56

169 = x ^ 2

x = sqrt ( 169 )

x = 13 miles per hour

hence speed of current is 13 miles per hour

Read more on speed here: brainly.com/question/4931057

#SPJ1

3 0
1 year ago
Solve 3/2^x-4=16 Two step equations
Lerok [7]

the answer is

x = 40/3



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3 years ago
What is the solution to the equation 5 (x minus 6) = 2 (x + 3)?
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The answer is x=12 :))
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What is the measure of the angle of rotation for the polygon?
m_a_m_a [10]

Answer:

360 degrees divided by that order

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2 years ago
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