2007-06-03 00:46:33 · 16 answers · asked by team r 1 in Science & Mathematics ➔ Mathematics
3b x 4a
=(3x5) x (4x2)
=15 x 8
=120
2007-06-03 00:49:39 · answer #1 · answered by Anonymous · 3⤊ 0⤋
if a=2 and in the equation there are 4a's then you must times 2 by 4 which gives you 8. with b=5 and you have 3b's in the equation then you need to multiply them together which equals 15. From there multiply 8 by 15 which should equal 120.
2007-06-03 02:31:03 · answer #2 · answered by Carl F 2 · 0⤊ 0⤋
since you are given that a=2 and b=5 you sub those values into the expression
so 3b x 4a
= (3x5) x (4x2)
= 15 x 8
= 120
.: 3b x 4a = 120
if a=2 and b=5
2007-06-03 01:04:05 · answer #3 · answered by Anonymous · 0⤊ 0⤋
if b=5 3b = 15
if a = 2 4a = 8
15 x 8 = 120
2007-06-03 00:50:26 · answer #4 · answered by Anonymous · 0⤊ 1⤋
120
2007-06-03 07:05:42 · answer #5 · answered by Anonymous · 0⤊ 0⤋
120
2007-06-03 00:49:58 · answer #6 · answered by BFG 3 · 1⤊ 0⤋
120
2007-06-03 00:49:40 · answer #7 · answered by Anonymous · 1⤊ 0⤋
3(5) x 4(2)= 15x 8= 120
2007-06-03 05:41:11 · answer #8 · answered by ~*tigger*~ ** 7 · 0⤊ 0⤋
3b.4a
=3(5).4(2)
=15.8
= 120
2007-06-03 05:20:26 · answer #9 · answered by Kemmy 6 · 0⤊ 0⤋
right, expand it to: (3xb) x (4 x a)
(3x 5) x(4 x2)
15 x 8
equals 120! I hope that's right, I wasn't very good at Maths at school!!
2007-06-05 10:39:22 · answer #10 · answered by xenonvalkyrie 6 · 0⤊ 0⤋