Answer:
15x - y = - 6.....15x + 6 = y...so we sub in 15x + 6 in for y on the other equation
5x - 3y = -13
5x - 3(15x + 6) = -13 <== the new equation
Step-by-step explanation:
6y - 8 ≤ 10
What you do to one side of the inequality, you do to the other side. Add 8 to both sides.
6y ≤ 18
Divide both sides by 6 to isolate y.
y ≤ 3
Answer:
Step-by-step explanation:
Let x be the original number.
x - 15 - 1/2(x - 15) - 10 = 12
x - 15 - 1/2 x + 7.5 - 10 = 12
1/2x - 25 + 7.5 = 12
1/2x - 17.5 = 12
1/2x = 27.5
x = 55
Answer:
1/3
Step-by-step explanation:
There is a total of 12 possible different outcomes.
The outcomes that are heads and a number greater than 2 are: H3, H4, H5, H6.
There are 4 outcomes that are heads and a number greater than 2.
p(heads & number greater than 2) = 4/12 = 1/3
Answer: 1/3