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Math and Arithmetic

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Eldon Hilpert

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Cards in this guide (26)
Bill can wash a car in 6 minutes Joe can wash the same car in 8 minutes How much time would it take for them to wash that same car working together

In 1 minute bill washes 1/6 of a car and Joe washes 1/8 of a car. 1/6 + 1/8 = 14/48. A whole care = 48/48. Therefore you should divide 48 by 14 to get 3.429. However since this is in minutes you need to find how much seconds 0.429 of 1 minute is. 0.429 x 60 = 26 seconds (rounded). Add that to the original three minutes and you have 3 minutes 26 sec to wash the entire car working together.

What is 8 to the power of negative three

Such that 83 = 8 x 8 x 8 = 512, 8-3 = 1/8 x 1/8 x 1/8 = 1/512

How do you solve 5x-2 3x-6

5x-2 = 3x-6 5x = 3x - 6 +2 5x = 3x - 4 5x - 3x = -4 2x = -4 x = -2

How much an average person would spend on house hold supplies

3 million

A trader buys coffee for 1200 and sells it for 1500 For each bag of coffee he earns a profit of 50 How many bags of coffee did he have

6 bags

Number of crew on a cargo ship

The number of crew members depends on the number of passengers. A favorable ratio is about one crew member for every two passengers to every two and one-half passengers.

Solve for x 5 plus 4x equals 3

x= -.5

Simplify the algebraic expression 2x-3y-7y plus 4x-5 and evaluate it for x equals 10 and y equals 4

2x - 3y -7y + 4x - 5 = 6x - 10y - 5 and (6 x 10) - (10 x 4 ) - 5 = 60 - 40 - 5 = 15

Ride a plane or ride in a plane

ride in a plane. you would fly a plane

What is another word for garage sale

Another word for a garage sale is a ''rummage'' sale or a "yard sale."

Y equals 2x-2x-24 determine the roots of the function

If Y equals 2X - 2X - 24, then there is one root, and it is -24. The two 2X's cancel each other out.

How do you get math problems

you will get many math problems during life

Ben thinks of a number he adds half of the number to a quarter of the number The result is 60 what is the number Ben first thought of

So 60 is 3/4 of his number. It must have been close to 80...

What number can be decreased by 6 and the result doubled to get 24

The number is 18.

Let x be the number, The equation is

(x-6) * 2 = 24

2(x-6) = 24

2x -12 = 24

2x = 24 + 12

2x = 36

x = 18

What is the simplification form of 2x plus 3-10

Simplist form of 2x plus 3-10 is 2x-7.

3x plus 8 equals 20-3x what is x

3x + 8 = 20 - 3x

6x = 12

x = 2

Is an advantage to using equations

yes

What is 45-5x equals 5x plus 55

45-5x = 5x+55

-5x-5x = 55-45

-10x = 10

x = -1

When you solve for x what is x plus 13 equals 22

X +13 equals 22, X equals nine

What is the solution to x 14 8

Assume that the expression is:

x + 14 = 8

Then subtract both sides by 14 to get:

x + 14 - 14 = 8 - 14

x = -6

If x = 14 + 8, then x = 22.

What are the room rates at Cooper Beech Inn

The room rates at Cooper Beech range from $100 to $500. The rate depends on many factors, like how long you want to stay, what room you rented and when you rented the room.

What is 24 x 1 x 40

24 x 1 = 24

24 x 40 = 960

A digital scale measures weight to the nearest 0.2 pound. Which measurement shows an appropriate level of precision for the scale

125 lbs

The volume of a cube depends on the length of its sides. This can be written in function notation as v(s). What is the best interpretation of v(3) 27

3 sides of the cube have a total length of 27 feet

In how many ways can you choose 2 side dishes out of 9

There are 36 possible combinations.

if f(x)=4x-8 and g(x)=5x+6 find (f+g)(x) if

(f+g)=4x+5x-2

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