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borishaifa [10]
2 years ago
8

How to solve this question ???? Help me please

Mathematics
2 answers:
LekaFEV [45]2 years ago
6 0
You make them to improper fractions then you find a greatest common factor and then go from there
olga nikolaevna [1]2 years ago
6 0
7
-
38 I think I could be wronged
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Daphne has a preloaded games card that she is using to play games at the arcade as shown in the table.
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Answer:

she starts with $25

every three games she spends $1.50 (.50 per game)

Step-by-step explanation:

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3 years ago
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Six identical squares are cut from the corners and edges of an 80 cm by 50 cm cardboard rectangle. the remaining piece is folded
Anna11 [10]
Check the picture.

let the length of a side of each of the squares removed be x.

The box formed will have dimensions: 80-2x, 50-2x, x(the height)

So the volume can be expressed as a function of x as follows:

f(x)=(80-2x)(50-2x)x=[4000-160x-100x+4 x^{2} ]x=(4 x^{2}-260x+4000)x

so f(x)=4 x^{3}-260x^{2}+4000x

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f'(x)=12x^{2}-520 x +4000=0

solving the quadratic equation, either by a calculator, graphing software, or by other algebraic methods as the discriminant formula, we find the solutions

x=10 and x=33.333

plug in f(x) these values to see which greater:

f(10)=(80-20)(50-20)10=60*30*10=18000 cm cubed

f(33.333)=(80-66.666)(50-66.666)33.333= which is negative because (50-66.666)<0



Answer: 18000 cm cubed

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3/4 divided by 1 1/2
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