The average rate is 5 mps because 80 seconds times 5 equals 400 meters
Answer:
The correct answer is Option 4: 12
Step-by-step explanation:
Given equation is:

We have to find a number that is common multiple of all the denominators or least common divisor
So to find the LCM
The numbers in denominator are: 4,3,2
So,

It can clearly be seen that 12 is the LCM of all three numbers so the equation will be multiplied with 12 to eliminate the fractions.

Hence,
The correct answer is Option 4: 12
This image has the step by step solution
Answer: it’s A 7/2 i just took this
Step-by-step explanation:
Answer:
(x + 5)^2 = (5 - 3)^2
Step-by-step explanation:
Given the equation;
x^2 + 10x + 22 = 13
We have;
x^2 + 10x = 13 - 22
x^2 + 10x = -9
Adding half of 10 to both sides and completing the square as usual, we have;
(x + 5)^2 = 5^2 + (-9)
(x + 5)^2 = (5 - 3)^2