3 years ago

Convert 4 5/7 to an improper fraction

Mathematics

1 answer:

Musya8 [376]3 years ago

8 0

Answer:

33/7

Step-by-step explanation:

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In each of the following ,make y the subject and hence find the value of y when a=2, b=3 ,and c=4.

zvonat [6]

Part i

$\dfrac{2a-7}{6y} = \dfrac{3b-5}{2c}$

$y = \dfrac{ 2c(2a-7)}{6(3b-5)} = \dfrac{c(2a-7)}{9b-15}$

Substituting,

$y = \dfrac{4(2(2)-7)}{9(3)-15} = \dfrac{ -12}{12} = -1$

Answer: -1

Part ii

I'm not sure that one's typed in correctly but I'll solve it as written.

$3-34y + 2a = \dfrac{3b-5}{2c + 1}$

$34y = 3+2a-\dfrac{3b-5}{2c + 1}$

$y = \frac 1 {34}\left(3+2a-\dfrac{3b-5}{2c + 1} \right)$

We're not asked to simplify it so I wont. Substituting,

$y = \frac 1 {34}\left(3+2(2)-\dfrac{3(3)-5}{2(4) + 1} \right) = \frac 1 {34}(7-4/9) = \dfrac{59}{306}$

Answer: 59/306

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3 years ago

An experiment requires the population of the bacteria to reach 2 million before the experiment can begin. The reproduction rate

Furkat [3]

Answer:

about 6 hours

Step-by-step explanation:

$8( {7}^{x} ) = 2( {10}^{6} )$

${7}^{x} = 250000$

$x = \frac{ ln(250000) }{ ln(7) } = 6.39$

6 0

1 year ago

Two cars leave the same place at the same time, but drive in opposite directions along a straight road. one car averages 35 mi/h

Goshia [24]

As we do not know the other cars avg speed we can not tell the answer. Please repeat the question.

6 0

3 years ago

HELP!!! NO CLUE WHAT TO DO HERE!!!

Mariulka [41]

Answer:

7.7

Step-by-step explanation:

square root 59 and it's 7.681, round to tenth to get 7.7

8 0

1 year ago

Find the value of x please help

____ [38]

using angle sum property

we get

110+35+(x+12)=180

(x+12)=180-145

(x+12)= 35

x= 35-12

x= 23

3 0

2 years ago

Read 2 more answers