Answer:
For the first one, R would be = -3/5
In the decimal form that would be -0.6
For the second one, K = 2/19
In the decimal form, it would be 0.10526315
…
Step-by-step explanation:
Answer:
419
Step-by-step explanation:
a=3
d=11-3=8

Question is Incomplete, Complete question is given below.
Mrs.Smith teaches junior high school. During a class party in fourth period, she used 4/5 liters of soda for 12 students. If she had a class party in fifth period and used the same serving size, how many liters did she use for 30 students?
Answer:
Mrs. Smith used 2 liters of soda for 30 students.
Step-by-step explanation:
Given:
Number of students = 12
Amount of soda used for 12 students = 4/5 liters
We need to find amount of soda used for 30 students.
For 12 students = 4/5 liters of soda used
For 30 students = the amount of soda used
By Using Unitary Method we get
Amount of soda used = 
Hence Mrs. Smith used 2 liters of soda for 30 students.
The answer will be option 6. angle.
Answer:
-8x^2-10x+12
Step-by-step explanation:
first set up the problem:
(-3x^2-7x+5)-(5x^2+3x-7)
Since you are subtracting you need to distribute the (-) sign:
(-3x^2‐7x+5)(-5x^2-3x+7)
Now just combine like terms
-3x^2+(-5x^2= -8x^2
(-7x+(-3x= -10x
5+7= 12
set answer in standard form:
-8x^2-10x+12