Write an algebraic expression using x for the unknow number.?

0 ⤊

Write an algebraic expression using x for the unknow number.?

A.) Twice a number is then decresed by thirty.

B.) Forty percent of a number is increased by 150.

2007-10-10 13:44:06 · 4 answers · asked by ramirez 1 in Science & Mathematics ➔ Mathematics

4 answers

Twice (2 times)
a number (x)
is then decreased by (-)
thirty (30)

2x - 30

Forty percent of (0.40 times)
a number (x)
is increased by (+)
150

0.40n + 150

2007-10-10 13:47:29 · answer #1 · answered by Puzzling 7 · 0⤊ 0⤋

A) 2x - 30

B) (2/5)x + 150

2007-10-10 20:48:22 · answer #2 · answered by Anonymous · 0⤊ 0⤋

A) 2x -30

B) 40%x +150

2007-10-10 20:50:09 · answer #3 · answered by Anonymous · 0⤊ 0⤋

(x*2) - 30

40% * x + 150

2007-10-10 20:47:50 · answer #4 · answered by keon_artis 2 · 0⤊ 0⤋