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2 years ago

The cost of a one-year subscription to Whale World magazine used to be

Mathematics

1 answer:

vitfil [10]2 years ago

4 0

Answer:

There was a 25 percent increase in the cost of the subscrription.

Step-by-step explanation:

This is because four 6's is 24, so one 6 is 25 percent, and 6 is the number of dollars that the subscrption increased in.

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381.10-214.43 equals

dmitriy555 [2]

Answer:

166.67

Step-by-step explanation:

3 0

2 years ago

A system of equations is given below:

algol [13]

The given system of equations is:

y = 4x − 3 ...(1)

2x + 7y = 41 ...(2)

Notice that the first equation is a solved equation for y. So, we can simply substitute 4x-3 for y in equation (2) to solve. This method is also knwon as substitution method by which we can plug in one equation into other equation.

So, if we will substitute y=4x-3 in equation (2) then we will get,

2x+7(4x-3)=41

Hence, third choice 2x + 7(4x − 3) = 41 is the correct answer.

4 0

2 years ago

The points (3, 24) and (7, 56) represent points of a function where y, the number of photographs, varies directly with x, the nu

bogdanovich [222]

Answer:

Option A 50-page photo album holds 400 photographs.

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

step 1

Find the value of k

For the point (3,24)

x=3,y=24

k=y/x

k=24/3=8

The equation is equal to

y=8x

step 2

Verify each statement

case A) 50-page photo album holds 400 photographs.

For x=50

substitute in the equation

y=8(50)=400 -----> is correct

case B) 80-page photo album holds 560 photographs.

For x=80

substitute in the equation

y=8(80)=640 -----> is not correct

case C) 100-page photo album holds 8,000 photographs.

For x=100

substitute in the equation

y=8(100)=800 -----> is not correct

case D) 900-page photo album holds 8,400 photographs.

For x=900

substitute in the equation

y=8(900)=7,200 -----> is not correct

9 0

2 years ago

Read 2 more answers

Argo wants to build a rectangular fence around her garden, and she has 242424 meters of wood. Which of these dimensions will giv

laiz [17]

Answer:

its choice b

Step-by-step explanation:

because it is

8 0

2 years ago

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Which equation represents the volume of a cone with the same base and height as the cylinder below? A cylinder with a height k a

Igoryamba

Answer: The correct answer is Volume Cone = one-third pi t squared k

Step-by-step explanation: The first important detail to note here is that both cylinder and cone have the same base and the same height This implies that when writing out the formula for calculating the volume of either of the two shapes, the radius and the height will be the same number or value.

The volume of a cylinder is given as;

Volume cylinder = pi x r squared x h (that is πr²h)

Also the volume of a cone is given as;

Volume cone = one-third x pi x r squared x h (that is 1/3*πr²h)

However, the variables have been changed such that the radius r is now represented by t while the height h is now represented by k.

Therefore the volume of the cone should now be re-written as;

Volume cone = one-third pi t squared k (that is 1/3 *πt²k)

3 0

2 years ago

Read 2 more answers