Answer:
X<2
Step-by-step explanation:
2x+4<8
subtract 4 from both sides
2x+4-4<8-4
simplify
2x<4
divide both by 2
2x/2<4/2
x<2
Answer:
How many students had 3 or more absences? Add together {45%, 21%, 23%} and subtract that sum from 100%: 11%.
How many students had two or more absences? Add together this 11% and 21%: 32% had two or more absences. Let the total number of students be n. Then 32% of these n students add up to 96 students. Thus, 0.32n = 96, and n= 300.
How many students had one absence? The chart shows that that is 45%, and we know that there are 300 students total.
Thus, the number of students who had one absence was 0.45(300) = 135.Step-by-step explanation:
Answer:
The pages that would be printed in one minute would be 27
Answer:
y = 2
Step-by-step explanation:
given the 2 equations
5x - 3y = - 11 → (1)
2x - 6y = - 14 → (2)
multiply (1) by - 2, to eliminate the term in y
- 10x + 6y = 22 → (3)
add (2) and (3) term by term
(2x - 10x) + (- 6y + 6y) = (- 14 + 22)
- 8x = 8 ( divide both sides by - 8 )
x = - 1
substitute x = - 1 into either (1) or (2) and solve for y
(1) : - 5 - 3y = - 11 ( add 5 to both sides )
- 3y = - 6 ( divide both sides by - 3 )
y = 2
solution is (- 1, 2 )