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drek231 [11]
2 years ago
7

A thin piece of wood of uniform density in the shape of an equilateral triangle with side length 3 inches weighs 12 ounces. A se

cond piece of the same type of wood, with the same thickness, also in the shape of an equilateral triangle, has side length of 5 inches. Which of the following is closest to the weight, in ounces, of the second piece?
(A) 14
(B) 16
(C) 20
(D) 33.3
(E) 55.6
Mathematics
2 answers:
natta225 [31]2 years ago
7 0
Sorry i dont know the answer but i can help you with your other questions
coldgirl [10]2 years ago
7 0

Answer:

D 33.3

Step-by-step explanation:

Im smart

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70 × 6000 associative properties
Hatshy [7]
You can do
70 x 6000
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8 0
3 years ago
Read 2 more answers
A little difficult question for me, it is multiple choice answer but my teacher taught this before the break. If anyone could he
Sever21 [200]
<h3>Answer: Choice D</h3>

Divide both sides of the first equation by 7, then add the result to the second equation

=======================================================

Explanation:

We can multiply both sides of an equation by the same number and the equation will be equivalent to the original.

For example, if we had  x = 5, then we could get 2x = 10 after multiplying both sides by 2. The reason they are equivalent equations is because the same x value is the solution for both equations.

We can also divide both sides of an equation by the same number and the two equations would be equivalent. We can go from 2x = 10 back to x = 5 when we divide both sides by 2.

----------

If we divide both sides of 7x - 21y = 14 by 7, then we end up with x - 3y = 2. Simply divide each term (7x,  -21y, and 14) by 7.

Because 7x-21y=14 and x-3y=2 are equivalent, this means we can replace the "7x-21y=14" with "x-3y=2"

--------

The new system would be

x-3y = 2

2x+3y = 11

From here you add straight down. Doing so will have the y terms add to -3y+3y = 0y = 0. After this point the y terms are eliminated and you can solve for x just like with any other equation of one variable.

7 0
3 years ago
Pls answer fast and will mark brainliest.
Usimov [2.4K]

Answer: b 5 calories per minute

Step-by-step explanation: you can see that the graph starts at 0 and at the one at the bottom it goes to 5 and then 10 for 2 minutes and so on

7 0
2 years ago
Solve for y.<br><br> –5(y − 3) − 10 = –6y<br><br> y =
Naya [18.7K]

Answer:

y =  - 5

Step-by-step explanation:

- 5(y - 3) - 10 =  - 6y

➡️ - 5y + 15 - 10 =  - 6y

➡️ - 5y + 5 =  - 6y

➡️ - 5y + 6y =  - 5

➡️ y =  - 5

7 0
3 years ago
Use your graphing calculator to find the square root function that fits the data in the table shown below.
tiny-mole [99]

Answer:

isn't that cheating

Step-by-step explanation:?

6 0
3 years ago
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