The cost of stainless steel tubing varies jointly as the length and the diameter of the tubing. If a 5 foot length with diameter 2 inches costs $48.00 , how much will a 19 foot length with 3 inches diameter cost?

Answers

Answer 1
Answer:

Answer:

$273.60

Step-by-step explanation:

The cost of stainless steel tubing varies jointly as the length and the diameter of the tubing.

i.e C\propto L\cdot D

i.e C=k\cdot L\cdot D

A 5 foot or 60 inches length with diameter 2 inches costs $48.00, so

\Rightarrow 48=k* 60* 2

\Rightarrow k=(48)/(60* 2)=0.4

Now the equation becomes,

C=0.4\cdot L\cdot D

So the cost of a 19 foot or 228 inches length with 3 inches diameter is,

C=0.4* 228* 3=\$273.60


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Solve for x. 3x - 4 = 13

Please help, I don’t understand at all.

Answers

In the given triangle ,
4x +13 +6x+ 2 = 14x-13 ( exterior angle property )
10x +15=14x-13
10x-14x=-13-15
-4x=-28
=> x = 7
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System of equations - urgent please help ben is making a new Twitter account and has 72 followers on his first day. He averages 10 new followers each week after that. Sarah also started a Twitter account and has 100 followers on her first day and averages 3 new followers each week. After how many weeks will they have the same number of followers?

Answers

Answer:

4 weeks

Step-by-step explanation:

Step one:

ben has 72 followers on his first day.

He averages 10 new followers each week

let the number of weeks be x

and the total followers be y

y= 72+10x--------1

Sarah also started a Twitter account and

has 100 followers on her first day and averages

3 new followers each week

let the number of weeks be x

and the total followers be y

y= 100+3x--------2

Step two:

let us equate the two expression to get the number of weeks x

72+10x=100+3x

collect like terms

10x-3x=100-72

7x=28

divide both sides by 7

x=28/7

x= 4 weeks

Two dice are rolled one after another. Construct a sample space and determine the probability that the sum of the dots on the dice total a number greater than 9 if the second die is a 5. The probability that the sum of the dots on the dice is a number greater than 9 if the second die is a 5 is nothing.​(Type an integer or a simplified​ fraction.)

Answers

this answer will be 55% ok

the volume of a rectangular pyramid is 1.32 cubic inches. the height of the pyramid is 1.1 inches and the length of the base is 1.2 inches. what is the width of the base of the pyramid

Answers

Work:

V  =  l × w × h

1.32  =  1.2 × w × 1.1

1.32  =  1.32 × w

1.32 ÷ 1.32 = 1

Answer:

1 inch = width
the answer is 3.62 because you add 1.32+1.1+1.2 and you get 3.62 but the width is 1 inch

When are triangles considered similar?

Answers

If two pairs of complementary angles in a pair of triangles are congruent, then the triangles are identical. We know this because if two angle pairs are exact, then the third pair must also be equivalent. When the three angle pairs are all identical, the three pairs of sides must even be in proportion.

A triangle considered similar

Two triangles are exact if they meet one of the subsequent criteria.  

  • Two pairs of corresponding angles are equal.
  • Three pairs of corresponding sides are proportional.
  • Two pairs of corresponding sides are proportional and the corresponding angles between them are equivalent.

To learn more about triangle

brainly.com/question/4120351

#SPJ2

When they are directly proportional,  are the same type (such as two equilaterals),  or have common angle lengths!

WHAT IS 3/8 DIVIDED BY 1/2

Answers

Answer: 3/4

Step-by-step explanation: Dividing by a fraction is the same as multiplying by its reciprocal. In other words, we can change the divison sign to multiplication and flip the second fraction.

So here, 3/8 divided by 1/2 can be rewritten as 3/8 × 2/1.

Now we are simply multiplying fractions so we multiply across the numerators and we multiply across the denominators.

So we have 3 × 2 which is 6 and 8 × 1 which is 8. Since 6/8 is not in lowest terms, we divide the numerator and the denominator by the greatest common factor of 6 and 8 which is 2 and we get the equivalent fraction 3/4.

Therefore, 3/8 divided by 1/2 is 3/4.