Posted by Paulette on Thursday, August 23, 2012 at 1:14am.
this makes no sense to me and won't to my child either. the instructions for solving, are try 3 numbers that add to the total with 2 numbers equal and the other 8 less then revise numbers till you get the answer. the question is: Jan, Mya And Sara ran a total of 64 miles last week. Jan and Mya ran the same number of miles. Sara ran 8 less miles than Jan and Mya. How many miles did Sara run?

math  Anonymous, Thursday, August 23, 2012 at 2:02am
Let x be the number of miles run by Jan.
Let x be the number of miles run by Mya.
Let x8 be the number of miles run by Sara.
* using the following equations, we have:
x+x+x8=64
3x8=64
3x=64+8 * since we transposed 8 on the right side, it became +8.
3x=72 * in order to get the value of x, we divide both side by 3.
x= 24 miles.
Jan and Mya ran 24 miles each while Sara, x8 (248), run 16 miles.
If we add the 3 numbers, 24 mi, 23 mi, and 16 mi, the total will be 64 miles.
Answer This Question
Related Questions
 3 grade math  I can answer this question, but I need to explain to our child ...
 Math  Hot numbers in a lottery are numbers that keep coming up. Cold numbers ...
 Algebra  What is the length of the interval of solutions to the inequality 1 ( ...
 Math  The average of 3 numbers is 45. If one of the numbers is 43, what is the ...
 math  The least common multiple of two numbers Is 60 , and one of the numbers ...
 Math  1,6,3,7,9,4,5,7=17 only plus or minus can be out in between the numbers ...
 Math  the lcm of two numbers is 60 and one of the numbers is 7 less than the ...
 Math  The least common multiple of two numbers is 60, and one of the numbers is...
 math  The Least Common Multiple of two numbers is 60, and one of the numbers is...
 Math  The least common multiple of two numbers is 60 and one of the numbers is ...
More Related Questions