Answer:
33-9+40-(30+15) =
33-9+40+25-(30+15) =
3+21 x 6-(24-4) =
3+21 x 6-(24-4) x 2 =
(62 ÷ 2 – 3) x 3 +6 =
(62 ÷ 2 – 3) x 3 +6 x 2=
0.3+0.8+0.2=
30+30×0+1=
Step-by-step explanation:
Answer:
In the first equation, it's H20 but the second is B
2Mg + 2O2
I think this is more of an opinion question. What someone could solve mentally may not be the same as someone else's.If it were my worksheet, I'd circle all of them but it may be different for you.
At your level, I'd probably circle:
54 - 10
93 - 20
and 39 - 2
Answer:
-12r² + 10xr - 15x + 34r - 24
Step-by-step explanation:
1. Organize it, variables first - as well as adding constants such as 4 and -7
(5x - 6r + 8) (2r - 3)
2. Start by multiplying the 5x by (2r - 3), then -6r, followed by 8
(10xr - 15x) + (-12r^2 + 18r) + (16r - 24)
3. Simplify
10xr - 15x - 12r² + 18r + 16r - 24
4. Order by greatest to smallest factorial
-12r² + 10xr - 15x + 18r + 16r - 24
5. Combine like variables
-12r² + 10xr - 15x + 34r - 24
Answer= 94/4
I hope this helps you
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