y is such that
4y - 7 ⩽ 3y and 3y ⩽ 5y + 8 :
i) What range of values satisfies both inequalities ?
ii) Hence, express 4y - 7 ⩽ 3y ⩽ 5y + 8 in the form of a ⩽ y ⩽ b where a and b are both integers.
Please show workings.
Answers
Answered by
6
Answer:
range of value satisfied inequality 4y-7≤3y is (-∞, 7]
range of value satisfied inequality 3y≤5y+8 is
[-4, ∞),
Step-by-step explanation:
4y-7≤3y
4y-3y≤7
y≤7
range=(-∞, 7] ,
_____________
3y≤5y+8
3y-5y≤8
-2y≤8
-(-2y) ≥-8
2y≥-8
y≥-4
range [-4, ∞)
4y-7≤3y≤5y+8
y≤7, y≥-4
so.
-4≤y≤7.
____@Deepak Razput.
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4
have u read my msg?
plz ans
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