Answer:
Explanation:
Distance and time are directly related, meaning that distance / time = constant.
In this case the constant is the rate or speed.
Thus you can write:
And, given that covering 30 miles requires 25 minutes, to calculate the time needed to cover 25 miles, you can set this proportion:
- 30 miles / 25 min = 25 miles / t
To clear t you do cross multiplication:
- t × 30 miles = 25 miles × 25 min
Divide both sides by 30 miles:
- t = 25 miles × 25 min / 30 miles = 20.8 min ≈ 21 min ← answer
Answer:
16
Step-by-step explanation:
Please mark my answer as brainliest :D
Sue spend 56 minutes in reading.
<h3>What is Unitary Method?</h3>
Unitary method is a process by which we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit.
Sue spent 1 hour 19 minutes less than Jared
Lucas spent 45 minutes less than Pete.
Pete spent 3 hours reading.
Since, pete spent 3 hours. So, Jared spent
= 3 hours or (180 minutes) - 45 minutes
= 2 hours 15 minutes.
Now, Seu spent = 2 hrs 15 minutes - 1 hour 19 minutes
= 56 minutes
Learn more about unitary method here:
brainly.com/question/22056199
#SPJ1
It's another word for unit rate if that helps
Answer:
see explanation
Step-by-step explanation:
the equation of a circle in standard form is
(x - h)² + (y - k )² = r²
where (h, k ) are the coordinates of the centre and r is the radius
given
x² + y² - 8x + 8y + 23 = 0
collect the x and y terms together and subtract 23 from both sides
x² - 8x + y² + 8y = - 23
using the method of completing the square
add ( half the coefficient of the x / y terms )² to both sides
x² + 2(- 4)x + 16 + y² + 2(4)y + 16 = - 23 + 16 + 16
(x - 4)² + (y + 4)² = 9 ← in standard form
with centre = (4, - 4 ) and r = 
= 3
this is shown in graph b
