There are 10 total numbers.
10 - 7 = 3, so there are 3 numbers greater than 7.
Mariah should have used a 3 in the numerator because there are 3 numbers greater than 7.
Step by step
Step 1 - -4(5.6)-3(-2.9) {multiply the numbers}. -> -22.4 + 8.7
Step 2 - -22.4 + 8.7 {calculate the sum}
-> -13.7
So the answer is -13.7
Answer:
The number to be added is 6.89
Step-by-step explanation:
Here, we want to know what number must be added to the expression to make it equal to zero.
Let the number be x
Thus;
-6.89 + 14.52 -14.52 + x = 0
-6.89 + x = 0
x = 6.89
To simplify into 1 fraction, remember, we must make the denominator the same
x/ (x-1 ) - 1/ (2-2x)
= -x/ -(1-x) - 1/(2-2x) [see the similarity now? ] [whatever we multiply for the denominator, as long as we multiply to the numerator, it will be ok]
= -2x / -(2-2x) + 1/-(2-2x)
= (-2x+1 )/ -(2-2x)
=(2x-1)/(2-2x)