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xxMikexx [17]
3 years ago
7

85 is what percent of 170?

Mathematics
2 answers:
natta225 [31]3 years ago
5 0
121.4285%
Hope this helped
Dmitry_Shevchenko [17]3 years ago
5 0

Answer: 144.5

Step-by-step explanation:

85 of 170 can be wriiten as:

85

170

Multiply both numerator & denominator by 100


85

170

×

100

100

=

50

100

= 50%

If you are using a calculator, simply enter 85÷170×100 which will give you 50 as the answer.


Small suggestion: Do these problems to get your brain working!

Problems: 65% of 43 , 53% of 62 , 73% of 52, etc.

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Step-by-step explanation:

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Three cards are chosen from a standard deck of 52 playing cards with replacement what is the orobsbility every card will be a he
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Simplify 2(a-3)/(a-4)(a-5)+(a-1)/(3-a)(a-4)+(a-2)/(5-a)(a-3)​
Umnica [9.8K]

Answer:

  \dfrac{5}{x^3-12x^2+47x-60}

Step-by-step explanation:

Though it is not what you have written, we think you want to simplify ...

  \dfrac{2(a-3)}{(a-4)(a-5)}+\dfrac{(a-1)}{(3-a)(a-4)}+\dfrac{(a-2)}{(5-a)(a-3)}\\\\=\dfrac{2(a-3)^2}{(a-3)(a-4)(a-5)}+\dfrac{-(a-1)(a-5)}{(a-3)(a-4)(a-5)}+\dfrac{-(a-2)(a-4)}{(a-3)(a-4)(a-5)}\\\\=\dfrac{2(a^2-6a+9)-(a^2-6a+5)-(a^2-6a+8)}{x^3-12x^2+47x-60}\\\\=\boxed{\dfrac{5}{x^3-12x^2+47x-60}}

_____

When writing a fraction in plain text, parentheses are needed around the entire denominator. The order of operations tells you that a/bc = (a/b)c, not a/(bc).

6 0
2 years ago
A building engineer analyzes a concrete column with a circular cross section. The circumference of the column is 18 \pi18π18, pi
Whitepunk [10]

Answer:

A=81\pi $ m^2

Step-by-step explanation:

Circumference of the column =18\pi $ meters

Circumference of a circle=2\pi r

Therefore:

2\pi r =18\pi $ meters\\2r=18\\r=18 \div 2\\$Radius, r=9 meters

Area of a Circle =\pi r^2

Since radius of the cross section of the column =9 meters

Area of the cross section of the column

=\pi *9^2\\=81\pi $ m^2

5 0
3 years ago
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