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steposvetlana [31]
3 years ago
13

(-11/20) ÷ (-4/16) =

Mathematics
2 answers:
makvit [3.9K]3 years ago
7 0

Answer:

2.2

Step-by-step explanation:

Pachacha [2.7K]3 years ago
5 0

Answer:

\boxed{\sf \cfrac{11}{5}\:\: or \:\: 2.2}

Step-by-step explanation:

\sf \left(\cfrac{-11}{20}\right)\div \left(\cfrac{-4}{16}\right)

Apply fraction rule:

\boxed{\sf\cfrac{a}{b}\div\cfrac{c}{d}  =\frac{a\times \:d}{b\times \:c}}

\longmapsto\sf \cfrac{-11\times \:16}{20\left(-4\right)}

Cancel the common factor of 16 and 20:

\longmapsto\sf \cfrac{-11\times4}{5\times(-4)}

Cancel common factor of 4 and  −4:

\longmapsto\sf \cfrac{-11}{5\times (-1)}

Multiply 5 by -1:

\longmapsto\sf \cfrac{-11}{-5}

Dividing two negative values gives a positive value:

\longmapsto\sf \cfrac{11}{5}

Or

\longmapsto\sf 2.2

________________________________

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Find the value of y for the given value of x. Round to the nearest hundredth.
BlackZzzverrR [31]

Answer:

20.922

Step-by-step explanation:

Evaluate ln 7.2 on a calculator; the correct result is 1.974.

Multiply that by 3, obtaining 5.922.

Finally, add 15 to that result:  y = 15 + 3 In 7.2 = 20.922

5 0
3 years ago
Make m the subject of the equation<br> (a) 5(m + y) = 4(m - 3y)
castortr0y [4]

Answer:

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Step-by-step explanation:

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2 years ago
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5 0
3 years ago
ONE HUNDRED POINTS
Over [174]

Answer:

See Below.

Step-by-step explanation:

We are given that ∠A = ∠D, and we want to prove that ΔACB ~ ΔDCE.

Statements:                                    Reasons:

1) \text{ $\angle A=\angle D$}                                    \text{Given}

2) \text{ }\angle BCA=\angle ECD                        \text{Vertical Angles Are Congruent}

3) \text{ } \Delta ACB \sim \Delta DCE                        \text{AA (Angle-Angle) Similarity}

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3 years ago
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14x+5y+3x-2y+5 simplified
mr_godi [17]
17x+3y+5  if you just want to add common factors
5 0
3 years ago
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