Answer:
The total time it takes her to swim the four laps is 3.65 minutes.
Step-by-step explanation:
Here, according to the given data:
The time taken to complete 1st lap = 54.73 seconds
The time taken to complete 2nd lap = 54.56 seconds
The time taken to complete 3rd lap = 54.32 seconds
The time taken to complete 4th lap = 54.54 seconds
Now, the TOTAL TIME taken to swim all 4 laps = SUM OF ALL 4 TIMES
= (54.73 + 54.56 + 54.32 + 54.54) seconds
= 219.35 Seconds
Now, 60 seconds = 1 minute
⇒ 1 seconds = 1/60 minute
⇒219.35 seconds = 219.27 x (1/60) minutes = 3.6558 minutes
Hence, the total time it takes her to swim the four laps is 3.65 minutes.
Answer:
2,016.67 sq. cm
Step-by-step explanation:
Given the approximate ratio of the sides of a rectangle as 3:4:5.
Total ratio = 3+4+5 = 12
Area of the rectangle = 1/2*base *height
get the base;
base = 3/12 * 220
Base = 55cm
Get the height
Height = 4/12 * 220
Height = 880/12
Height = 73.3cm
Area = 1/2 * 55 * 73.3
Area = 2,016.67 sq. cm
Y = mx + b
y = 3/5(x) + b
-4 = 3/5(2) + b
-4 = -2.4 + b
b = -4 + 2.4
b = -1.6 (-8/5)
y = 3/5x - 8/5.
{10, 15} and {5, 10, 15}.
Trying out some values:
x=10, 5*10 + 3 = 53, so 10 and above satisfy the inequality.
x=5, 5*5 + 3 = 28, which the lowest value that will satisfy the inequality so nothing below 5 will.
So any set with 5 or higher are correct, so
{10, 15} and {5, 10, 15}.
