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1 year ago

-6 divided by ( - 2/3) times (-5)

Mathematics

2 answers:

tatuchka [14]1 year ago

7 0

<h3><em><u>Answer:-6 divided by ( - 2/3) times(-5)</u></em></h3>

<h3>Step-by-step explanation:-<em><u>45 </u></em></h3><h3><em><u /></em></h3><h3> Negative Six divided by negative two thirds times negative five equals -45 ... O_O</h3>

musickatia [10]1 year ago

7 0

Exact form :
9/5

decimal form:
1.8

mixed number form:
1 4/5

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Step-by-step explanation:

Let’s say that x is number of trees at the begging of the first year, we know that for four years the number of trees were incised by 1/4 of the number of trees of the preceding year, so at the end of the first year the number of trees was $x+\frac{1}{4} x=\frac{5}{4} x$ , and for the next three years we have that

Start End

Second year $\frac{5}{4}x$ -------------- $\frac{5}{4}x+\frac{1}{4}(\frac{5}{4}x) =\frac{5}{4}x+ \frac{5}{16}x=\frac{25}{16}x=(\frac{5}{4} )^{2}x$

Third year $(\frac{5}{4} )^{2}x$ ------------- $(\frac{5}{4})^{2}x+\frac{1}{4}((\frac{5}{4})^{2}x) =(\frac{5}{4})^{2}x+\frac{5^{2} }{4^{3} } x=(\frac{5}{4})^{3}x$

Fourth year $(\frac{5}{4})^{3}x$ -------------- $(\frac{5}{4})^{3}x+\frac{1}{4}((\frac{5}{4})^{3}x) =(\frac{5}{4})^{3}x+\frac{5^{3} }{4^{4} } x=(\frac{5}{4})^{4}x.$

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Therefore the number of trees at the begging of the 4-year period was 2560.

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2 years ago