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horrorfan [7]
4 years ago
9

How to find the scale factor, ratio of area, & ratio of volume?

Mathematics
1 answer:
Andreas93 [3]4 years ago
3 0

Step-by-step explanation:

If the scale factor of two similar solids is a: b:. then

(1) the ratio of corresponding perimeters is a:b

(2) the ratio of the base areas, of the lateral areas, and of the total areas is a^2: b^2

(3) the ratio of the volumes is a^3:b^3

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Megan charges %5.00 for each hour, (h), she babysits. Last week, the total amount she earned by babysitting was $65.00.
mel-nik [20]

Answer:

B

Step-by-step explanation:

To find how many hours she worked you must divide $65 by $5 and B is the only equation where you can do that.

8 0
3 years ago
Solve the inequality and graph its solution: 6n – 11 > 31
miss Akunina [59]
<span>6n – 11 > 31
</span><span>6n  > 31 + 11
</span>6n  > 42
  n > 42/6
  n > 7
5 0
3 years ago
In accounting, a company's gross profit rate measures how well the company controls cost of goods sold to maximize gross profit.
postnew [5]

Answer:

<h2><em>$960,000</em></h2>

Step-by-step explanation:

The gross profit rate of the company is expressed as P = \dfrac{S - C}{S} where C is the cost of goods sold and S is the net sales. If the net sales S = $1,200,000, and gross profit ratio is 0.20, the cost of goods sold will be expressed as shown;

Making C the subject of the formula from the expression given.

P = \dfrac{S - C}{S}\\\\cross \ multiply\\\\SP = S-C\\\-C = SP-S\\\\C = S -SP\\

Substituting P = 0.20 and S = $1,200,000 into the resulting equation, we will have;

C = $1,2000,000 - 0.2($1,2000,000)\\C = $1,2000,000- 240,000\\ C = 960,000

<em>Hence the cost of goods sold is $960,000</em>

<em></em>

6 0
3 years ago
Decrease 40 by 62 1/2%
skelet666 [1.2K]

Answer:

15

Step-by-step explanation:

Take 62.5 from 100  = 37.5

divide this by 100 = 0.375

times 40 by this

0.375 x 40 = 15

4 0
3 years ago
What do the following two equations represent?
miv72 [106K]

Answer:

Intersecting but not perpendicular

Step-by-step explanation:

Assuming you forgot to add the = between y+5 and 2(1)

Since there is a opposite single variable in either equation the lines will intersect but not be perpendicular

3 0
2 years ago
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