Ask question

Ask question

All categories

3 years ago

9

A boat traveled 84 miles downstream and back. The trip downstream took 4 hours. The trip back took 28 hours. Find the speed of t

he boat in still water and the speed of the current.

1 answer:

Lesechka [4]3 years ago

6 0

84 divided by 4 =21 , 21x28=588 , so 588 is the speed of the current

You might be interested in

Simplify (-2x^4y^-3)^4

elixir [45]

Answer:

$( - 2 {x}^{4} {y}^{ - 3} )^{4} = \frac{16 {x}^{16}}{ {y}^{12} }$

Step-by-step explanation:

We want to simplify:

$( - 2 {x}^{4} {y}^{ - 3} )^{4}$

We need to apply the exponential property for products of powers.

Recall that:

$( {a}^{m} \times {a}^{n} )^{p} = {a}^{mp} \times {a}^{np}$

We apply this rule to get:

$( - 2 {x}^{4} {y}^{ - 3} )^{4} = ( { - 2)}^{4} x \times {x}^{16} \times {y}^{ - 12}$

This simplifies to:

$( - 2 {x}^{4} {y}^{ - 3} )^{4} = 16 {x}^{16} \times {y}^{ - 12}$

We rewrite as positive index to get:

$( - 2 {x}^{4} {y}^{ - 3} )^{4} = \frac{16 {x}^{16}}{ {y}^{12} }$

7 0

3 years ago

What is the greatest common factor of 3x4, 15x3, and 21x??

luda_lava [24]

Answer:

The GCF of 3x^4, 15x^3 and 21x is 3x^2

Step-by-step explanation:

3x^2(x^2), 3x^2(5x) , 3x^2(7)

4 0

3 years ago

Read 2 more answers

alekssr [168]

Answer:

In Triangle FGH, m<F = 42 and an exterior angle at vertex H as a measure of 104. What is the measure of <G?

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Measures of minor arcs equal measures of inscribed angles.<br> true or false?

Vikki [24]

The answer to your question is TRUE

8 0

3 years ago

Read 2 more answers

4,756 rounded to the nearest thousand is

Shalnov [3]

4,756 rounded to the nearest thousand is 5,000.

8 0

3 years ago

Read 2 more answers