What is 1/5 (y+3)+3=1/10(7y-4)-5

Mathematics

2 answers:

Serggg [28]3 years ago

6 0

The picture will tell you how I got the answer of y = 18.

Aleksandr [31]3 years ago

3 0

Answer:1/5 (y+3)+3=1/10(7y-4)-5= 18

Step-by-step explanation:I used MathPapa(Website)

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Hellp me solve this thanks

stellarik [79]

Answer:

c. 10 cm

Step-by-step explanation:

The parallel sides of trapizium are the bases so

base 1(B1) =9cm , base(B2)= 12cm

$area(a) = 105 {cm}^{2}$

the perpendicular distance means the height so lets find the height

area of trapizium= B1 + B2 × h

2

${105cm}^{2}(the \: given \: area) = \frac{9cm(the \: given \: base) + 12cm(the \: given \: base)}{2} \times h$

${105cm}^{2} = \frac{21cm}{2} \times h$

now we crisscross

${105cm}^{2} \times 2 = 21cm \times h$

${210cm}^{2} = 21cm \times h$

$\frac{ {210cm}^{2} }{21cm} = \frac{21cm \: }{21cm} \times h$

h = 10 cm

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For any question comment me

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3 years ago

A sodium Isotope has a half life of 15 hours how much sodium is left after 100 hours

JulsSmile [24]

We'll say beginning amount is 100
Ending Amount = Beginning Amount / 2^n where n is the number of half-lives
100 hours mean six and 2/3 half-lives will elapse
Ending Amount = 100/2^(6.666666)
Ending Amount = 100 / 101.59
Ending Amount = 0.9843488532 
So if we started with 100 grams after 100 hours (or 6.6666666 half-lives) we would only have 0.9843488532 grams remaining.
http://www.1728.org/halflife.htm

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gulaghasi [49]

Answer:

Step-by-step explanation:

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4 years ago

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