(2x + 3y = 12) x (-2)
(4x - 3y = 6) x 1
-4x - 6y = -24
4x - 3y = 6
You can cancel out the x values by adding the two equations together.
(-4x + 4x) + (-6y - 3y) = (-24 + 6)
-9y = -18
y = 2
Solve for x now...
4x - 3(2) = 6
4x - 6 = 6
4x = 12
x = 3
Check... (x = 3, y = 2)
2(3) + 3(2) = 12
6 + 6 = 12
12 = 12 <- this works!
4(3) - 3(2) = 6
12 - 6 = 6
6 = 6 <- this works!
The total snowfall for listed 10 days is 349 cm.
Further explanation:
The sum of snow fell each day will give us the total snowfall for 10 days.
Given:
Snow fell on 10 days:
14 cm, 13 cm, 7 cm, 3 cm, 11 cm, 14 cm,
28 cm, 108 cm, 84 cm, 67 cm
So,
The total snowfall for listed 10 days is 349 cm.
Keywords: Addition, Word problems
Learn more about addition at:
#LearnwithBrainly
Answer: 30 degrees
Step-by-step explanation:
All angles in a triangle add up to 180 degrees, so you can just write an equation to solve for the measure of angle F. Also, angle C is congruent to angle F because of CPCTC
124 + 26 + F = 180
150 + F = 180
F = 30
The measure of angle F is 30 degrees
Answer:
20
10% of 20 is 2 2x15=30
Step-by-step explanation:
I would use is over of equals percent over 100 is woudl be 120% and of would be 75 then you would put x over 75
