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3 years ago

11

ASAP! A boat travelling at top speed upstream moves at 15km/hr. When it travels downstream, again at top speed< it moves at 2

5km/hr. What is the boat's top speed in still water?

1 answer:

Leni [432]3 years ago

3 0

Answer: 20km/h

Step-by-step explanation:

20km/h. Simply average 15 and 25 by doing (15+25)/2

Hope it helps <3

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The length of a rectangular garden is 3 yards greater than the width of the garden. If the garden measures 15 yards diagonally,

aliina [53]

15 x 3= 45 so therefore 45 is the length hope that help!

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3 years ago

The lead statue of the Korean War Memorial in Washington DC casts a 43.5 inch shadow at the same time a nearby tourist casts a 3

AfilCa [17]

Answer:

The lead statue is 87 inches tall

Step-by-step explanation:

Let

x ----> the height of the lead statue

using proportion

we know that

The height of the lead statue divided by the length of his shadow must be equal to the height of the tourist divided by the length of his shadow.

so

$\frac{x}{43.5}=\frac{64}{32}\\\\\frac{x}{43.5}=2\\\\x=2(43.5)\\\\x=87\ in$

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3 years ago

How many ways can a person select 3 coins from a box consisting of a penny, a nickel, a dime, a quarter, a half dollar, and a on

tekilochka [14]

Answer:

A person can select 3 coins from a box containing 6 different coins in 120 different ways.

Step-by-step explanation:

Total choices = n = 6

no. of selections to be made = r = 3

The order of selection of coins matter so we will use permutation here.

Using the formula of Permutation:

nPr = $\frac{n!}{(n-r)!}$

We can find all possible ways arranging 'r' number of objects from a given 'n' number of choices.

Order of coin is important means that if we select 3 coins in these two orders:

--> nickel - dime - quarter

--> dime - quarter - nickel

They will count as two different cases.

Calculating the no. of ways 3 coins can be selected from 6 coins.

nPr = $\frac{n!}{(n-r)!}$ = $\frac{6!}{(6-3)!}$

nPr = 120

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3 years ago

A miniature golf course recently provided its customers with 6 golf balls, of which 3 were blue. What is the experimental probab

Schach [20]

The next probable answer is 1:2

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2 years ago

A blockbuster movie makes about $352,000,000 in the United States during its opening weekend. The same weekend another movie ope

Ivenika [448]

The combined revenue for the movies in scientific notation is $\$ 3.568 \times 10^8$ .

The given parameters;

<em>first revenue made from the movie, = $352,000,000</em>
<em>second revenue made from the movie, = $4,800,000</em>

The combined revenue from the movie is calculated by adding the two revenues together as shown below;

Total revenue = $352,000,000 + $4,800,000

Total revenue = $356800000 = $\$ 3.568 \times 10^8$

Thus, the combined revenue for the movies in scientific notation is $\$ 3.568 \times 10^8$

Learn more here:brainly.com/question/18911739

5 0

2 years ago