3 years ago

Martin wants to buy a new CD player. The

Mathematics

1 answer:

Soloha48 [4]3 years ago

7 0

Answer:

$131.25

Step-by-step explanation:

Take the $175 price and divide it by 0.25, which is the decimal version of 25%. You should get 43.25 which is 25% of 175. Then subtract 43.25 from 175 to get the final answer of $131.25 for the CD player if Martin buys it on Wednesday.

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Step-by-step explanation:

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6 ( x - 1 ) = 9( x - 4 ) solve for x I'm giving points pls answer fast

Alex

Answer:

x = 10

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define

6(x - 1) = 9(x - 4)

Step 2: Solve for x

Distribute: 6x - 6 = 9x - 36
Subtract 6x on both sides: -6 = 3x - 36
Isolate x term: 30 = 3x
Isolate x: 10 = x
Rewrite: x = 10

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x: 6(10 - 1) = 9(10 - 4)
Subtract: 6(9) = 9(6)

Here we see that the 2 expressions are exactly the same.

∴ x = 10 is the solution to the equation.

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How much interest does $400 make in 5 years at 7% per annum?

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