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If you score 139 143 144 what do you have to score to get an average of 145?
Wiki User
∙ 14y ago
154
algebra! one of my faves!! (more fun than ODEs!)in four:
(139 +143 + 144 + X)/4 = (139 +143 + 144 + X) x 1/4 = 145
First take what is outside the parentheses, in this case the 1/4 and multiply BOTH SIDES by 4 so
(139 +143 + 144 + X) x 1/4 x 4 = 145 x 4
then
139 +143 + 144 + X = 580
then sum (group and add) all the numbers on each side of the equals and...
426 + X = 580
Now subtract 426 from both sides...
426 - 426 + X = 580 - 426
And you have isolated the unknown!
X = 154 so 139 +143 + 144 + 164 = 580
in five: is the same thing but you'd have two Xs that would be the same...
(139 +143 + 144 + 2X)/5 = (139 +143 + 144 + 2X) x 1/5 = 145
(139 +143 + 144 + 2X) x 1/5 x 5 = 145 x 5
skipping ahead...
426 + 2X = 725
2X = 725 - 426
2X = 299 (ooops there is a pesky fraction coming up!)
Divide both sides by 2 and
X = 149.5 or 149-1/2
So
149-1/2 + 1/2 = 150
and
149-1/2 - 1/2 = 149
and as before
139 +143 + 144 + 149 + 150 = 725
Wiki User
∙ 14y ago
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What is John's average score given that John's bowling scores were 120 144 143 111 and 167?
The average score (or arithmetic mean of his score) is the sum of all values divided by the number of values.Sum of all values = 120 + 144 + 143 + 111 + 167 = 685 : Number of values = 5Average Score = 685 ÷ 5 = 137.
What is One gross divided by one score?
Gross = 144 (or 12 dozens)Score = 20Gross = 144 (or 12 dozens)Score = 20Gross = 144 (or 12 dozens)Score = 20Gross = 144 (or 12 dozens)Score = 20
What is the sum of all numbers from 1 - 144?
-143
What two numbers added together equal 287?
144 and 143
What IQ score is brillIant?
Genuis - 144+ .13% Gifted - 130-144 2.14% Superior average- 115-129 13.59% Upper average- 100-114 34.13% Lower average - 85-99 34.13% Below average- 70-84 13.59% Low- 55-69 2.14% Very low under 55 .13%
What is John's average score given that John's bowling scores were 120 144 143 111 and 167?
The average score (or arithmetic mean of his score) is the sum of all values divided by the number of values.Sum of all values = 120 + 144 + 143 + 111 + 167 = 685 : Number of values = 5Average Score = 685 ÷ 5 = 137.
If John's bowling scores were 120 144 143 111 and 167 what is his average score?
To find the average, add all 5 scores together and divide the sum by 5. 120 + 144 + 143 + 111 + 167 = 685 and 685/5 = 137
What is the LCM of 143 and 144?
Their product.
Is 143 good on an IQ test?
Are you kidding?! That's almost a perfect score! The highest is 144! Your IQ is higher than Aly Milchalkas IQ!
What is One gross divided by one score?
Gross = 144 (or 12 dozens)Score = 20Gross = 144 (or 12 dozens)Score = 20Gross = 144 (or 12 dozens)Score = 20Gross = 144 (or 12 dozens)Score = 20
What was the highest possible army gt score in 1968?
not sure but since Mensa says 136 puts you in top 2% it would probably be roughly 136/98=139 so there is that. Someone scoring over 139 would imply unusually high score. I was in the army records division and as I recall there was a guy in our division who scored a 151. Real nice guy. I was second to him but way down as mine was 136
What was Mussolini's IQ?
Benito Mussolini's IQ was about 143
What is the sum of all numbers from 1 - 144?
-143
What is the mean of 146 151 128 139 and 156?
The mean is 144
Which two prime numbers added equals 144?
139 and 5
What are the numbers between 30 and 144?
The numbers between 30 and 144 are all of the numbers from 31 to 143 inclusive.
What two numbers added together equal 287?
144 and 143
