Answer:
1.25$
Step-by-step explanation:
if he buy 1.45 per litre then for 5 litre it will cost 7.25$ if he buys 5 litre tin then it will cost 6$ profit equals 7.25$-6$ equals 1.25 dollar
19.
To find this you first have to find the f(x) values for x = 5 and x = 8
x = 5
f(x) = 5^2 + 6(5) + 11
f(x) = 25 + 30 + 11
f(x) = 66
x = 8
f(x) = 8^2 + 6(8) + 11
f(x) = 64 + 48 + 11
f(x) = 123
Then you subtract the two from each other to see how much it has changed in those 3 numbers.
123 - 66 = 57.
Then you take that answer and divide it by the change in x (which is 3)
57/3 = 19
Answer:
The number of bacteria after days is given by
where is the initial number of bacteria.
Step-by-step explanation:
The number of bacteria in the sample triples every 10 days, this means after the first 10th day, the number of bacteria is
where is the initial number of bacteria in the sample.
After the 2nd 10th days, the number of bacteria is
after the 3rd day,
and so on.
Thus, the formula we get for the number of bacteria after the nth 10-days is
where is is the nth 10-days.
Since, is 10 days, we have
or
Find the scale of the known sides:
RT is similar to UW
5.4 /9 = 0.6
The smaller triangle is 0.6 times the larger one.
Multiply the length of RS to find UV:
6 x 0.6 = 3.6
The answer is A. 3.6 inches.
