Answer:
x = 8
Step-by-step explanation:
4(x+1.5)=38
Distribute the 4
4x +6 = 38
Subtract 6 from each side
4x+6-6 = 38-6
4x = 32
Divide each side by 4
4x/4 = 32/4
x = 8
Answer:2 decimal places
Step-by-step explanation:Multiply
Answer:
The slope of the line is
⇒ B
Step-by-step explanation:
Let us revise the rule of the slope
The rule of the slope of the line is m =
, where
- (x1, y1) and (x2, y2) are two points lie on the line
∵ The line passes through the point (-3, 1) and point (4, -2)
→ That means one of them is (x1, y1) and the other is (x2, y2)
∴ x1 = -3 and y1 = 1
∴ x2 = 4 and y2 = -2
→ Substitute them in the rule of the slope above to find it
∵ m =
= 
∴ m = 
∴ The slope of the line is 
Answer:
x=29
Step-by-step explanation:
(x+3)+(x-1)+(x+1)=90
x+3+x-1+x+1=90
3x+3=90
3x=90-3
x=87/3
x=29
x+3=32
x+1=30
x-1=28
Checking
(x+3)+(x-1)+(x+1)=90
(29+3)+(29-1)+(29+1)=90
32+28+30=90
90=90