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Alexandra [31]
3 years ago
5

Use the six steps in the "Blueprint for Problem Solving" to solve the following word problem. You may recognize the solution

by just reading the problem. Use n as the variable for the number and write the equation used to describe the problem.
If three times the sum of a number and 4 is 18, find the number.

Equation:

The number is .
Mathematics
1 answer:
ch4aika [34]3 years ago
8 0
Number is n
Three times the sum of a number and 4.
 
= 3* ( n + 4) = 18
    3n  + 12 = 18.
     3n    =  18 - 12.
      3n   = 6
         n = 6 / 3.
           n = 2.
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I am very confused, please help!
mojhsa [17]

Answer:

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Step-by-step explanation:

Consider the equation:

\dfrac{3}{4}(24-16x)=-\dfrac{2}{3}(18x-27)

Use distributive property in both sides:

\dfrac{3}{4}\cdot 24-\dfrac{3}{4}\cdot 16x=-\dfrac{2}{3}\cdot 18x+\dfrac{2}{3}\cdot 27\\ \\3\cdot 6-3\cdot 4x=-2\cdot 6x+2\cdot 9\\ \\18-12x=-12x+18

Separate terms with x into the left part and terms without x into the right part:

-12x+12x=18-18\\ \\0=0

Since you get true equality 0 = 0, the equation is true for all real values of x. So, the equation has infinitely many solutions.

6 0
3 years ago
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7 0
2 years ago
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Masteriza [31]
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8 0
3 years ago
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AVprozaik [17]

Answer: (y-7)(y+3)(y+2)

Step-by-step explanation:

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3 years ago
What is the area of 4.5 and 5.5cm and 20cm
amm1812

Answer:

6.8

Step-by-step explanation:

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