1) 7.4 + (-3.9) = y
2) z = -13.9 + (-12.5)
3) k = -3.91 - (-0.6)
4) a = -34.1 + (-17.63)
5) y = -18.12 - (-7.3)
2007-01-05 10:39:04 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
1.7.4-3.9=y
y=3.5
2.z=-13.9-12.5
=-26.4
3.k=-3.91+0.6
=-3.31
4.a=-34.1-17.63
=-51.73
5.y=-18.12+7.3
=-10.82
2007-01-05 10:45:48 · answer #1 · answered by raj 7 · 2⤊ 0⤋
1) 7.4+(-3.9)=y is 7.4-3.9
which equal 3.5
2) z=-13.9+(-12.5) is 13.9-12.5
which equal 1.4
3) k=-3.91-(-0.6)turns to 3.91+0.6 since both numbers are negative and your subtracting, everything turns completely opposite(this doesn't work with positive numbers thought)
which equal 4.51
4) a= -34.1+(-17.63)
which equal 51.73
5)y= -18.12- (-7.3)turn to 18.12+7.3, the same happens as in #3
which equal 25.42
2007-01-05 18:50:09 · answer #2 · answered by h-townguy 3 · 0⤊ 0⤋
Just solve according to order of operations >
1. 7.4 - 3.9 = y
3.5 = y; y = 3.5
2. z = -13.9 - 12.5
z = -26.4
Try the rest :-)
2007-01-05 18:49:55 · answer #3 · answered by ♪♥Annie♥♪ 6 · 0⤊ 0⤋
1)y=3.5
2)z= -26.4
3)k= -3.31
4)a= -51.73
5)y= -10.82
-Study in school dude.
2007-01-05 18:45:02 · answer #4 · answered by mercnet117 2 · 1⤊ 0⤋
1) y= 3.5
2) z= -26.4
3) k= -3.31
4) a= -51.73
5) y= -10.82
good luck .......
2007-01-05 19:22:36 · answer #5 · answered by leao 1 · 0⤊ 0⤋
1)y=3.5
2)z=-26.4
3)k=-3.31
4)a=-51.73
5)y=-10.82
2007-01-05 19:18:57 · answer #6 · answered by chetblong 3 · 0⤊ 0⤋
1)y=3.5
2)z=-26.4
3)k=-3.31
4)a=-51.73
5)y=-10.82
2007-01-05 19:12:37 · answer #7 · answered by Anonymous · 0⤊ 0⤋