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ikadub [295]
3 years ago
9

A man is 65 years old and his grandson is 20. how many years ago was the grandfather six times as old as the grandson?

Mathematics
2 answers:
swat323 years ago
7 0
5 goes into 50 10 times, so it was less than 15 years ago. 10 goes into 55 5 and a half times, so it was greater than 10 years ago. At 6, the grandpa was about 8 times older. At 7, the grandpa was about 7 times older. At 8, the grandpa was almost 7 times older. At 9, the grandpa was exactly 6 times as old as the grandson. The grandson was 9 eleven years ago. So, your answer is 11. Hope that helps.
AnnZ [28]3 years ago
5 0
Five years ago i think
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leonid [27]
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4x + 8 = 4x - 13

8 = -13

no solution. 

hope that helps, God bless!
8 0
3 years ago
I need some one to help me!! <br><br> Is (7, 0) a solution to the equation y = x − 7?
Marianna [84]

Answer:

Yes

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Coordinates (x, y)

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

Point (7, 0)

Equation y = x - 7

<u>Step 2: Find</u>

  1. Substitute in point [Equation]:                                                                         0 = 7 - 7
  2. Subtract:                                                                                                            0 = 0

Since 0 = 0 is true, then it would be a solution to the equation.

3 0
3 years ago
Need help on math You have a meal at a restaurant. The sale tax is 8% . You leave a tip for the waitress that is 20% of the pret
DerKrebs [107]

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Let x= Pretax price of the meal.

Given: Sales tax = 8%

Tip percent = 20%

As per given ,

Amount spent = ( Pretax price) + (Sales tax )  of (Pretax price) + (Tip percent)of (Pretax price)

=  x+ 8% of x +  20% of x

= x +0.08+0.20x

= 1.28x

∵ Amount spent =  $23.04

So,

1.28x=23.04\\\\\Rightarrow\ x=\dfrac{23.04}{1.28}\\\\\Rightarrow\ x=18

Hence, the pretax price of the meal= $18.

4 0
3 years ago
The kiddie pool has a hole in it and is losing water at a rate of 12 fl oz per minute. What is the change in amount of water in
bonufazy [111]

Answer:

48oz

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5 0
2 years ago
Read 2 more answers
I will give you 10 points
faltersainse [42]
Answer -4/27

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7 0
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