This is the concept of simultaneous equations:
Let the time taken to do one sum be x and time taken to do one product be y.
Total time taken to do 5 sums and seven products will be:
5x+7y=43
Total time taken to do 4 sums and 6 products will be:
4x+6y=36
This gives us the simultaneous equations:
5x+7y=43
4x+6y=36
multiply the top equation by 4 and the bottom equation by 5 then subtract the bottom equation from the top gives us:
-2y=-8
thus:
y=4
next
multiply the top equation by 6 and the bottom equation by 7 then subtract the bottom from the top equation gives us:
-2x=-6
hence;
x=3
therefore:
Total time taken to do 1 sum is x=3 nanoseconds
Total time taken to do 1 product is y=4 nanoseconds
Answer:
I'm guessing you need this now, So I'm just going to give the answer without the explanation
Step-by-step explanation:
52.5
Answer:
95/21
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(2-97)/(-11-10)
m=-95/-21
m=95/21
<u>Answer with Step-by-step explanation:</u>
We are given two tables and we are to complete the missing values.
For table one, we are to substitute the given values of x in the term :
when x = 0,
when x = 2,
when x = 4,
For table two, we are to substitute the given values of x in the term :
when x = 0,
when x = 2,
when x = 4,
You times 4 by everything inside the parentheses, so the answer would be as follows. 16a + 20b - 12