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Lemur [1.5K]
3 years ago
7

Which expression represents the phrase "twice the sum of a number and three"?

Mathematics
2 answers:
Karo-lina-s [1.5K]3 years ago
5 0
<span>2(n+3)
"sum of" is the clue meaning whatever follows those words should be set off alone in parenthesis</span>
exis [7]3 years ago
3 0
2(n+3)
two times the sum of a number (n) and 3
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A company made a storage container with sheet steel walls. The container was in the shape of a rectangular prism, as shown below
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Answer:

The sheet steel costed $22.41 per square meter

Step-by-step explanation:

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3 years ago
Two rectangular prisms have the same volume. The area of the base of the blue prism is 216 square units. The area of the base of
valina [46]

Answer:

D)The height of the red prism is three times the height of the blue prism

Step-by-step explanation:

Here is the complete question

Two rectangular prisms have the same volume. The area of the base of the blue prism is 2 1/6 square units. The area of the base of the red prism is one third that of the blue prism.

which statement is true?

a)The height of the red prism is one-third the height of the blue prism

B)The height of the red prism is the same as the height of the blue prism

C)The height of the red prism is six times the height of the blue prism.

D)The height of the red prism is three times the height of the blue prism

Solution

Since both prisms have the same volume, V = A₁h₁ = A₂h₂ where A₁ and A₂ are the areas of the red and blue prisms respectively and h₁ and h₂ are the heights of the red and blue prisms respectively. For the question, A₁ = A₂/3. Substituting this into the equation, A₁h₁ = A₂h₂

A₂h₁/3 = A₂h₂

h₁ = 3h₂ . So the height of the red prism is thee times the height of the blue prism.

5 0
3 years ago
Read 2 more answers
Laura is training to run a race. She keeps track of the number of miles she runs. She has been training for 5 weeks, and she has
V125BC [204]

Answer:

8 miles per week!

Step-by-step explanation:

40 miles / 5 weeks = 8!

so it would be 8 miles per week.

i hope this helps!!

4 0
2 years ago
David borrowed $30,000 to start a business. Four years later he repaid $1260 in interest. What was the annual rate? Round to two
ollegr [7]
Annual rate = 1.05%

Simple interest formula is I = Prt * 100
Where P is principle, I is interest, r is rate and t is time.

Transpose to make r the subject

Prt * 100 = I
r = I/ Pt * 100

Substitute values into the equation.
Let I = $1260, P = $30,000 and t = 4 years

r = $1260/ $30,000 * 4 * 100
r = 0.0105 * 100
r = 1.05%
5 0
3 years ago
You deposit $1500 in an account that pays 6% interest compounded yearly. Find the balance after 5 years.
Inga [223]

Answer:

1950

Step-by-step explanation:

p: 1500

r: 0.06

n: 1

t: 5

1500(1+ 0.06/1)^5

1500(1.06)^5

1500×1.3

1950

3 0
3 years ago
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