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3 years ago

Which of the following fractions would convert to a repeating decimal 7/8 or 3/5 or 5/2 or 2/9

Mathematics

1 answer:

Mashcka [7]3 years ago

6 0

Answer:

2/9

Step-by-step explanation:

7/8=0.875

3/5=.6

5/2=2.5

2/9=0.22222222222...

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©Peter, Bridget and Caroline share some sweets in the ratio 2:5:2. Peter gets 14 sweets. How

andre [41]

Answer: 35 sweets

Step-by-step explanation:

2:5:2= 9

peter= 2/9 x a= 14

it then turns to

9/2 x 14= 63

so bridget will get:

5/9 x 63

35 sweets

6 0

4 years ago

NO LINKS!!! PLEASE!

lara [203]

Answer:

x = 94

Step-by-step explanation:

(86 + x)/2 = 90

86 + x = 180

x = 94

6 0

3 years ago

For every 72 students there are 16 females. If there are 4 females, about how many students are there?

Whitepunk [10]

Answer:

14 im pertty sure

Step-by-step explanation:

8 0

3 years ago

Help please

mafiozo [28]

Answer:

$\displaystyle \: \frac{5}{4}$

Step-by-step explanation:

we are given a expression

we are said to solve it using L'Hôpital's Rule

recall, L'Hôpital's Rule:

$\displaystyle \lim _{x \to \: c}( \frac{f(x)}{g(x)} ) = \lim _{x \to \: c} \frac{f ^{'}(x) }{ {g}^{'}(x) }$

it is to say the ' means derivative

our given expression:

$\displaystyle\lim_{ x\to 2}\frac{x^2+x-6}{x^2-4}$

let's apply L'Hôpital's Rule

$\displaystyle\lim_{ x\to 2}\frac{ \dfrac{d}{dx} (x^2+x-6)}{ \dfrac{d}{dx} (x^2-4)}$

some formulas of derivative

$\displaystyle \: \frac{d}{dx} {x}^{n} = {nx}^{n - 1}$

$\displaystyle \: \frac{d}{dx} {x}^{} = 1$

$\displaystyle \: \frac{d}{dx} {c}^{} = 0$

$\sf \displaystyle \: \frac{d}{dx} {f}^{} (x) + {g}^{}(x) = {f}^{'} (x) + {g}^{'}(x)$

use sum derivative formula to simplify:

$\displaystyle\lim_{ x\to 2}\frac{ \dfrac{d}{dx} (x^2)+ \dfrac{d}{dx} (x) + \dfrac{d}{dx}( -6)}{ \dfrac{d}{dx} (x^2) + \dfrac{d}{dx} (-4)}$

simplify using exponents using exponent derivative formula:

$\displaystyle\lim_{ x\to 2}\frac{ 2x+ \dfrac{d}{dx} (x) + \dfrac{d}{dx}( -6)}{ 2x + \dfrac{d}{dx} (-4)}$

use variable derivative formula to simplify variable:

$\displaystyle\lim_{ x\to 2}\frac{ 2x+ 1+ \dfrac{d}{dx}( -6)}{ 2x + \dfrac{d}{dx} (-4)}$

use constant derivative formula to simplify derivative:

$\displaystyle\lim_{ x\to 2}\frac{ 2x+ 1+ 0}{ 2x + 0}$

simplify addition:

$\displaystyle\lim_{ x\to 2}\frac{ 2x+ 1}{ 2x }$

since we are approaching x to 2

we can substitute 2 for x

$\displaystyle\lim_{ x\to 2}\frac{ 2.2+ 1}{ 2.2 }$

simplify multiplication:

$\displaystyle\frac{ 4+ 1}{ 4}$

simplify addition:

$\displaystyle \: \frac{5}{4}$

hence,

$\displaystyle\lim_{ x\to 2}\frac{ \dfrac{d}{dx} (x^2+x-6)}{ \dfrac{d}{dx} (x^2-4)} = \frac{5}{4}$

7 0

3 years ago

Read 2 more answers

Solve for x with 10x+10 and 17x+8

barxatty [35]

Answer:

here is the answer

Step-by-step explanation:

4 0

2 years ago