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love history [14]

2 years ago

7

a box contains 2 purple marbles, 9 orange marble and seven yellow marble. if you pick 2 without looking wha is the probability t

hat both will be orange

2 answers:

Ulleksa [173]2 years ago

7 0

Angood job

swer:

Step-by-step explanation:

aleksandr82 [10.1K]2 years ago

6 0

15.384615

2+2+9 = 13

13/100 equals69.230 multiply by two for your anaswer

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A certain ferry moves up and down a river between Town A and B. It takes the ferry two hours to travel to Town A and only an hou

Y_Kistochka [10]

Answer:

The distance between two cities is <em>60 miles.</em>

Step-by-step explanation:

Time taken to travel from B to A = 2 hours

Time taken to travel from A to B = 1.5 hours

Current speed = 5 mph

Let the speed of ferry in still water = <em>u</em> mph

When the ferry moves with the current, it will taken lesser time (i.e. A to B) and when it moves against the current it will take more time (i.e. B to A).

Let the distance between the two cities A and B = D miles

While moving with the current, speed = $(u+5)\ mph$

While moving against the current, speed = $(u-5)\ mph$

Formula for Distance = Speed $\times$ Time

Distance traveled in each case is same i.e. D.

So,

$D = (u+5) \times 1.5 = (u-5) \times 2\\\Rightarrow 1.5u+7.5=2u-10\\\Rightarrow 0.5u =17.5\\\Rightarrow u = \dfrac{175}{5}\\\Rightarrow u = 35 \ mph$

Now,

$D = (u+5) \times 1.5\\\Rightarrow D =(35+5) \times 1.5\\\Rightarrow D =(40) \times 1.5\\\Rightarrow \bold{D =60\ miles}$

So, the distance between two cities is <em>60 miles.</em>

6 0

1 year ago

A toy airplane climbs 30 vertical feet while traveling 50 feet horizontally. A toy helicopter climbs 20 feet while traveling 40

Amiraneli [1.4K]

Answer:

k

Step-by-step explanation:

u

7 0

1 year ago

A home’s value increases at an average rate of 5.5% each year. The current value is $120,000. What function can be used to find

Wewaii [24]

Answer:

$y=120,000(1.055)^x$

Step-by-step explanation:

we know that

The equation of a exponential growth function is given by

$y=a(1+r)^x$

where

y is the value of the home

x is the number of years

a is the initial value

r is the rate of change

we have

$a=\$120,000\\r=5.5\%=5.5/100=0.055$

substitute

$y=120,000(1+0.055)^x$

$y=120,000(1.055)^x$

7 0

1 year ago

ASAP NO WORK JUST ANSWER

KIM [24]

Answer:

c

Step-by-step explanation:

4 0

1 year ago

Read 2 more answers

Georgina has a cube-shaped ring box. The volume of the box is 125 cubic centimeters. What is the length of the box in centimeter

omeli [17]

you need to find one side then see what multiples are equal to your answer

8 0

2 years ago