Her swimming rate can either be written as 1.6 laps per (one) minute or as 0.625 minutes per lap = 37.5 seconds per (one) lap.
In terms of number of laps per minute, the answer is
20
laps
12.5
minutes
=
1.6
laps per minute.
In terms of the number of minutes per lap, the answer is
12.5
minutes
20
laps
=
5
8
=
0.625
minutes per lap. This is the same as
0.625
min
lap
⋅
60
sec
min
=
37.5
sec
lap
The faster she goes, the more laps she can do in a minute and the fewer minutes (or seconds) it takes her to do one lap.
Answer:
250 : 500 : 750 : 1000
Step-by-step explanation:
2500 ÷ 1+2+3+4
2500 ÷ 10
250
Therefore the answer is,
1 : 2 : 3 : 4
250 : 500 : 750 : 1000
Answer:
x = 5
Step-by-step explanation:
8x-9=7x+6-2x
We move all terms to the left:
8x-9-(7x+6-2x)=0
We add all the numbers together, and all the variables
8x-(5x+6)-9=0
We get rid of parentheses
8x-5x-6-9=0
We add all the numbers together, and all the variables
3x-15=0
We move all terms containing x to the left, all other terms to the right
3x=15
x=15/3
x = 5
Equation of the circle is (x - 6)² +(y-7)² = 4.
<h3>What is a Circle ?</h3>
A figure having round shape and all the points lie on the same plane is called a circle.
Equation of a circle can be formed using centre of the circle and radius of the circle.
(x-h)² +(y-k)² = r²
where (h,k) is the vertex and 'r' is the radius.
From the given graph the centre of the circle is at (6,7)
and radius of the circle is 2 units
(h,k) is (6,7)
and r= 2
Substituting all the values
The equation of the circle
(x - 6)² +(y-7)² = 2² = 4
Equation of the circle is (x - 6)² +(y-7)² = 4
To know more about Circle
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The line has a constant rate, so this is a linear equation
We move from left to right on the x axis so this line is decreasing
It’s the second option, Linear Decreasing