<span>7n-2(n+5)< 3n-16 / -3n-16
7n-2(n+5)-3n+16<0
5n-3n-10+16<0
2n-10+16<0
2n+6<0 / -6
2n< -6 / :2
n< -6/2
n< -3
n</span>є(-∞:-3)
Answer:
one student = 0.25
3.75 ÷ 0.25 = 15
15 students were tested by the teacher.
Step-by-step explanation:
Step-by-step explanation:
Step 1 - Separate LHS and RHS of the given polynomial.
--- (1)
y = x + 1 --- (2)
Step 2 - Draw the graph of a line (y = x + 1) that passes through the points (-1,0) and (0,1).
Step 3 - Now, draw the graph of the equation (1). The shape of this graph is the upward parabola.
Step 4 - The two graphs intersect each other at (-1,0) and (2,3).
From the above steps, it can be concluded that the correct option is C).
Answer:
x=4
Step-by-step explanation:
First you add the values with x and theese without x:
(3x+8x+7x)+(9-6-2)=73
18x+1=73
Then you subtract (-1) from both sides:
18x=72
And then you divide by 18:
x=72:18=4
