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3 years ago

In the United States, 15,000,000 households use private wells for their water supply. Write this number in scientific notation.

Mathematics

2 answers:

Lubov Fominskaja [6]3 years ago

8 0

Answer:

1.5*10^7

Step-by-step explanation:

That's same as saying standard form

soldier1979 [14.2K]3 years ago

4 0

Answer:

1.5 x 10 to the 7th power

Step-by-step explanation:

There are 7 digits between the decimal point in 15,000,000.0 and the first digit. So it can then be rewritten as 1.5 x 10 to the 7th power

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Which of the following geometric objects could have it length measured

anastassius [24]

Answer:

You need to attach the image

Step-by-step explanation:

3 0

2 years ago

Which equation can be used to solve the following word problem? Seth has 8 more nickels than dimes, and the total value of his c

9966 [12]

Answer:

Seth has 21 nickels

Step-by-step explanation:

Let n represent the number of nickels. Since Seth has 8 more nickels than dimes, then (n-8) is the number dimes.

Nickel is worth 5 cents and dime is worth 10 cents. Thus, n nickels are worth 5n cents and (n-8) dimes are worth 10(n-8) cents. The total value of Seth's coins is $2.35 that is 235 cents, then

$5n+10(n-8)=235.$

Solve this equation:

$5n+10n-80=235,\\ \\15n=235+80,\\ \\15n=315,\\ \\n=21.$

6 0

3 years ago

You decide to go to the candy store in the mall. You arrive at the store with $25 and then purchase 3 candy bars. You then buy a

Yuri [45]

Answer:

<h2> The cost of a candy is $1.25</h2>

Step-by-step explanation:

given the total amount at hand is $25

let the price of candy be x

then the cost of 3 candy will be 3x

the cost of a candy snake is $12.50.

balance at hand after the end of buying $8.75

the total expenses summed up must equal the initial amount at hand which is $25

the expression for the scenario is 3x+12.5+8.75=25

3x+21.25=25

3x=25-21.25

3x=3.75

x=3.75/3

x=$1.25

The cost of a candy is $1.25

4 0

3 years ago

Wsg help me with this<br><br> What is the orthocenter and what is it used in geometry

julia-pushkina [17]

Answer:

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

A polyhedron with 16 edges cannot be a prism. Explain why this must be true

Readme [11.4K]

Answer:

This prism has: 5 Faces. 6 Vertices (corner points) 9 Edges.

Step-by-step explanation:

3 0

2 years ago