7. Easiest method is substitution. Since y=x/2, then:
2x+3(x/2)=28
8.Substituting again, we get:
3x-6x=6
-3x=6
x=-2
(-2,6)
☺☺☺☺
Answer:
Less than 7
Step-by-step explanation:
7x 5/8 = 4.375 or 4 and 3/8
hope it helps!
Answer:
(1) 2x - 6 < - 14
(2) 2x + 3 < 1
Explanation:
(1) 2x - 6 < -14 -> 2x < - 8 -> x < - 4
(2) 2x + 3 < 1 -> 2x < -2 --> x < -1
Compound solution set: x < - 4
==========|-4----------|-1-------|0----------------
Step-by-step explanation:
50.03, the triangles are congruent
Answer:
1. <u>Mean start of school year:</u>
- (5 + 2*6 + 4*7 + 4*8 + 2*9 + 10) / 14 = 7.5
2. <u>Median end of school year:</u>
- 8, middle two numbers are 8
3. <u>Range end of school year:</u>
