Its 75 because you at the 2 variables and then subtract them by 180 so 180-105=75
Angle A: 60 degrees
Angle B: 30 degrees
Angle C: 90 degrees
Answer:
Step-by-step explanation:
hello,

hope this helps
Answer: 
Step-by-step explanation:
<h3>
The complete exercise is: "Write an expression using letters and/or numbers for each problem below"</h3>
For this exercise it is necessary to remember the following:
1. The word "times" indicates multiplication,
2. The word "combined" indicates addition.
In this case let "m" represents the amount of miles that Madison runs and let "a" represents the amount of miles that Aaliyah runs.
Based on the explained above, you know if the amount of miles that Madison runs and the amount of miles that Aaliyah runs are combined (or in other words, they are added), then the expression that represents this would be:

Therefore, you can determine that "4 times as many miles as Madison and Aaliyah combined", can represented with the following expression:

Answer:
A certain shade of pink us created by adding 3 cups of red paint to 7 cups of white paint
Step-by-step explanation:
Constant of proportionality is the constant value of the ratio of two proportional quantities x and y; usually written y = kx, where k is the factor of proportionality.
To make color pink,
for every 3 cups of red , we need 7 cups of white.
Let 'r' be the cups of red required
let 'w' be the cups of white required
so , as per the question
for 3 r we need = 7 w
r = 7/3 w
so, 7/3 is constant of proportionality