1.3h×3h×k3÷k =?
2.There are b boys and g girls in a class.
(a) Express the number of students in the class in terms of b and g.
(b)If the class is divided evenly into w groups,hoe many students are there in each group?
3.Jane is p years old now.Her brother,Jeffrey,is 5 years younger than her.
a)Express the age of Jeffrey in terms of p.
b)How old will Jeffrey be after r years?
4.The cost of a red pen is $x and that of a blue pen is $y.Find the total cost of 4 red pens and 5 blue pens.
5.Kelvin has u $10-dollar notes and v $20-dollar notes.
a)How much does Kelvin have in total?
b)Joey has the amount as twice as that of Kelvin.How much does Joey have?
maths homework (2)!!!!
2013-09-29 3:50 am
回答 (2)
2013-09-29 4:07 am
✔ 最佳答案
1) 9h^2k^22a) (b+g) students
2b) (b+g)/ w students
3a) (p+5) years old
3b) (p+5+r) years old
4) $(4x+5y)
5a) $(10u+20v)
5b) $2(10u+20v)
2013-09-28 20:07:44 補充：
希望可以幫到你^^
2013-09-29 4:09 am
1.3h×3h×k3÷k
=(3h×3h)(k3÷k)
=9h2k2
2.(a) Express the number of students in the class in terms of b and g.
b+g
(b)If the class is divided evenly into w groups,hoe many students are there in each group?
b+g
____
w
3.(a)Express the age of Jeffrey in terms of p.
p-5
b)How old will Jeffrey be after r years?
p-5+r
4.The cost of a red pen is $x and that of a blue pen is $y.Find the total cost of 4 red pens and 5 blue pens.
4x+5y
5.a)How much does Kelvin have in total?
u+y
b)Joey has the amount as twice as that of Kelvin.How much does Joey have?
2(u+y)
=2u+2y
Hope that I can help you
=(3h×3h)(k3÷k)
=9h2k2
2.(a) Express the number of students in the class in terms of b and g.
b+g
(b)If the class is divided evenly into w groups,hoe many students are there in each group?
b+g
____
w
3.(a)Express the age of Jeffrey in terms of p.
p-5
b)How old will Jeffrey be after r years?
p-5+r
4.The cost of a red pen is $x and that of a blue pen is $y.Find the total cost of 4 red pens and 5 blue pens.
4x+5y
5.a)How much does Kelvin have in total?
u+y
b)Joey has the amount as twice as that of Kelvin.How much does Joey have?
2(u+y)
=2u+2y
Hope that I can help you
參考: 我
收錄日期: 2021-04-13 19:45:14
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