plz help me to do the questions.If you do not know the answer,plz answer no!Thx!
1.Fill in the blanks with <,=,>.
(a)If a
0.
(d)If a<0,then ab_____0.
2.Solve the following inequalities:
(a) x+3>2
(b) x-2<3
3.Write each of the following in algebraic from:
(a) The sum of x and y (x
3y).
4.Mrs Lee bought 3kg of pork.She paid $50 and got back $8 change.How much did 4kg of pork cost?
F.1 math
2007-07-25 2:34 am
回答 (2)
2007-07-25 2:46 am
✔ 最佳答案
2a)x + 3 > 2
x + 3 - 3 > 2 - 3
x > -1
2b)
x - 2 < 3
x - 2 + 2 < 3 + 2
x < 5
___________________________
4)
Cost of pork of 3 kg = 50 - 8 = $ 42
Cost of pork of 1 kg = $ 42 / 3 = $ 14
Cost of pork of 4 kg = $ 14 x 4 = $ 56
2007-07-25 2:39 am
2.Solve the following inequalities:
(a) x+3>2
(b) x-2<3
2a)x+3>2
x>2-3
x>-1
b)x-2<3
x<3+2
x<5
(a) x+3>2
(b) x-2<3
2a)x+3>2
x>2-3
x>-1
b)x-2<3
x<3+2
x<5
收錄日期: 2021-04-12 20:38:40
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