Answer:
7.
Step-by-step explanation:
3(100 - 2x) = 36x + 6
300 - 6x = 36x + 6
50 - x = 6x + 1
7x = 49
x = 7.
Answer:
3
Step-by-step explanation:
substitute -2 in where y is.
the subtraction sign in front of the 3 makes it negative so -3 x -2 is positive 6.
4x+6=18, subtract 6 on both sides.
4x=12
divide 4 on each side.
×=3
Answer: x=50
how?
- 5= 20 (first ADD 5 with 20 whatever you do on one side you have to do it to the other) so that gives us:
=25 (we see that 2 is being divided by x and we want X alone so the inverse of division is MULTIPLICATION)
25 x 2= 50
therefor the x=50
Answer:
Step-by-step explanation:
EC = 12÷2 = 6
ED = √(CD² - EC²) = √(16² - 6²) = √220 = 2√55 ≅ 14.8 units
Answer:
Step-by-step explanation:
