1. Kohli's mean score in the three cricket matches was 55 runs.
After four matches his mean score was 61. How many runs
did he score in the fourth match?

79

Step-by-step explanation:

You first multiply 3 by 55 in order to get the runs he scored in the three matches which will be 165.You then multiply 4 by 61 in order to get the runs in the four matches which will be 244.Lastly you subtract 165 from 244 to get 79 which are the number of runs he scored in the fourth match.

answer:

step-by-step explanation:

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1