12/x=4
do the opposite of 12 (multiply) on each side, cancelling out 12 on x side, leaving x by itself.
x=12(4)
x=48
55.8 is the answer
Please make me brainliest.
Answer:
68.67
Step-by-step explanation:
Estimate 63% of 109
Change 63% to a decimal by locating the decimal which is after the 3 in 63 and move the two places to the left. So 63% as a decimal is .63
Now multiply .63 × 109
= 68.67
I suppose <em>K</em> is the matrix
To compute det(<em>K</em>), you can use a simple cofactor expansion along the first row: