1/2 : 1
2 : 4
3 : 6
Notice that every ratio consists of a number and double the number.
For 1/2 cup lemon juice, use 1 cup sugar.
The amount of sugar is twice the amount of lemon juice.
The ratio is 1:2
Since you are told the ratio is 1:r, that means r is 2.
The unit rate is 2 cups sugar per cup of lemon juice.
Circumference of a circle = pi x diameter
pi = 3.14
diameter = radius x 2
diameter = 10 x 2
diameter = 20
Circumference = 3.14 x 20
Circumference = 62.8 ft
<1 and <2 are supplementary angles. They add up to 180 degrees.
92 and <2 are corresponding angles, they have the same measure.
So,<2 = 92 degrees
180-92= 88 degrees
<1= 88 degrees
I hope this helps!
~kaikers
