4) 4 1/5
5) 6 2/9
6) -6
To solve for these, just divide the most you can and then put the amount that you couldn’t divide anymore on top of the fraction. For example, 4 is the farthest I could divide and I put the 1 as a fraction of 5 as that is what was left.
Answer:
x= 4, y=3
Step-by-step explanation:
2x + 3y = 17
3x - 2y = 6
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<u>If we double the first and triple the second equation, and add up, we can get rid of y:</u>
- 4x+6y= 34
- +
- 9x - 6y= 18
- -----------------
- 13x= 52
- x= 4
<u>Then it is easy to find the value of y:</u>
<u>Answer is</u>: x= 4, y=3
Answer:
And the real value for this case is y=14. The residual is defined as:
Replacing we got:
And the best answer would be:
-2
Step-by-step explanation:
For this case we know that the best fit line for the relationship between x and y is given by:
And we know that an individual in the dataset has a score of 10 on the x-variable and a score of 14 on the y-variable. So then we can find the estimated value like this:
And the real value for this case is y=14. The residual is defined as:
Replacing we got:
And the best answer would be:
-2
Answer:
6.5
Step-by-step explanation:
Change the divisor 2.5 to a whole number by moving the decimal point 1 places to the right. Then move the decimal point in the dividend the same, 1 places to the right.
We then have the equation:
25 into 162.5 equals 6.5
Calculated to 1 decimal places.
Hope this is able to be useful
