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2 years ago

What is the slope of the line that passes through the points (-9, -9) and (-6, -12)

Mathematics

1 answer:

max2010maxim [7]2 years ago

7 0

Answer:

3/3

Step-by-step explanation:

x2 minus x1 over y2 minus y1

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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.

3 0

3 years ago

HELP ASAP!!!!!!!!!!!!!

Igoryamba

Answer:

just calculate

Step-by-step explanation:

4 0

3 years ago

Can someone please tell me what the growth rate is. Thanks in advance.

aalyn [17]

Answer:

44 years per year

18 males

34 female

and total 44

5 0

3 years ago

Hola me pueden ayudar con este punto...gracias

Natalka [10]

Answer:

dont speak yo language m8

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Find missing side of triangle, help!

dezoksy [38]

Answer:

2√10 km

Step-by-step explanation:

By Pythagoras theorem,

x^2 + 9^2 = 11^2

x^2 + 81 = 121

x^2 = 121 - 81

x^2 = 40

= 4 x 10

x^2 = 2^2 x 10

x = 2√10 km

5 0

2 years ago