2 years ago

Need help please thanks

Mathematics

1 answer:

Liula [17]2 years ago

4 0

I think it’s true because its moving and and the energy is than converted into electric energy we use

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Estimate a 20% tip on a dinner bill of \$173.26 by first rounding the bill amount to the nearest ten dollars .

RideAnS [48]

Answer:

Step-by-step explanation:

173.25 - 20%

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3 years ago

Read 2 more answers

It is in the attachment.

Setler79 [48]

Answer:

you would have to pay $43.20

Step-by-step explanation:

15+32.50=47.50

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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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3 years ago

Steven is playing an online video game

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Steven gained 100 points.

To calculate the gain or lose of any 2 numbers, always do

Final - Initial

So,

-50 - -150

Is like saying

I have negative 50, and I take away negative 150.

Taking away negative numbers is just addition.

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Is the slope really -2-2? Or is that a miss type?

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