3 years ago

Elizabeth buys to red cans of tomato juice and three blue cans of tomato juice in all how many cups of tomato juice does she by

Mathematics

1 answer:

defon3 years ago

4 0

The answer to this is 5

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A boat travels upstream for 48 miles in 3 hours and returns in 2 hours traveling downstream in a river. What is the rate of the

alekssr [168]

Answer:

20 mph and 4 mph

Step-by-step explanation:

GIVEN: A boat travels upstream for $48$ miles in $3$ hours and returns in $2$ hours traveling downstream in a river.

TO FIND: What is the rate of the boat in still water and the rate of the current.

SOLUTION:

Let the speed of boat in still water be $s$ and speed of current be $a$ .

$\therefore$ speed of water in upstream $=s+a$

speed of water in downstream $=s-a$

As $speed=\frac{distance}{time}$

$s+a=\frac{48}{3}=16$

$s-a=\frac{48}{2}=24$

Solving both we get

$s=20\text{ mph}$

$a=4\text{ mph}$

Hence speed of boat in still water and rate of current is 20mph and 4mph respectively.

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Step-by-step explanation:

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Step-by-step explanation:

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just olya [345]

1st hen =6x

2nd hen =7y

1st hen is greater than 2nd

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For the points A(3,0), B(5, 2) and C(7,-2), calculate the angle<br> BAC

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