Answer:
The ratio that compares the diameter of the first circle to the diameter of the second circle is 
Step-by-step explanation:
Circumference of a circle:
The circumference of a circle of diameter d is given by:
In which d is the diameter.
One circle has a circumference half as large as that of a second circle.
We have that:
So
Simplifying by 
The ratio that compares the diameter of the first circle to the diameter of the second circle is
Answer:
6/5
Step-by-step explanation:
2x+3=ky
ky=2x+3
y=(2x+3)/k
y=2x/k + 3/k - > equation 1
y=mx + c - >equation 2
Comparing equation 1 and 2,
2/k=m
2/k=5/3
6/5=k
k=6/5
Answer:
Step-by-step explanation:
Find a common denominator for 5 and 3 and go on from there
x=4/7
Step-by-step explanation:
get x alone.
1st get 3 on the other side of the = sign by using the opposite sign. the opposite of addition is subtraction
-5x+3=2x-1
-3 -3
-5x=2x-1-3
-5x=2x-4
now we get the xs together. the opposite of addition( the 2 is positive) is subtraction
-5x=2x-4
-2x -2x
-7x=-4
now let's get the -7 out of here. -7 is multiplying by x. the opposite of multiplication is division.
<u>-7x</u><u> </u>= <u>-</u><u>4</u>
-7. -7
x=-4/-7
negative divided by a negative is a positive
x=4/7
