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myrzilka [38]
3 years ago
15

SOMEONE HELP ME PLEASE

Mathematics
1 answer:
Yuki888 [10]3 years ago
6 0

Answer:

1. 120 2. 45 3. 13 4. 492 5. 0.88

Step-by-step explanation:

1. set it up as a ratio 30m/3g=x/12g, cross multiply

3x=360 solve for x

x=120m

2. set it up as a ratio $40/8h=x/9h, cross multiply

8x=360 solve for x

x=$45

3. set it up as a ratio $32.5/5t=x/2t, cross multiply

5x=65 solve for x

x=$13

4. set it up as a ratio 738k/6m=x/4m, cross multiply

6x=2952 solve for x

x=492k

5. set it up as a ratio $0.32/4m=x/11m, cross multiply

4x=3.52

x=$0.88

hope this helps!

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Answer:

x^3+x^2-2x\leq140

Step-by-step explanation:

This is an algebra problem, and we are expected to inequality for the volume of the aquarium.

Given that the

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the inequality expression for the volume is

2x*(x -1) * (x + 2) \leq 280\\\\

open the brackets

2x*(x -1) * (x + 2) \leq 280\\\\(2x^2-2x)*(x+2)\leq 280\\\\\2x^3+4x^2-2x^2-4x\leq 280\\\\\2x^3+2x^2-4x\leq280

divide through by 2 we have

x^3+x^2-2x\leq140

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3 years ago
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Step-by-step explanation:

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3 years ago
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