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3 years ago

Are 19/8 and 2.375 equivalent and why

Mathematics

2 answers:

Nuetrik [128]3 years ago

4 0

Answer:

Yes.

Step-by-step explanation:

They are equivalent because if you divide 19 by 8, the result is 2.375.

ankoles [38]3 years ago

3 0

Answer:

yes

Step-by-step explanation:

convert 19/8 into a decimal:

$\frac{19}{8}$ =2.375

2.375=2.375

Hope this helps!

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What is 7.45 as a mixed number in simplest form

DiKsa [7]

As a mixed number, it is 7 and 9/20
As an improper fraction, it is 149/20

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4 years ago

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A sauce recipe calls for a cup of chicken broth. To make enough sauce for a party, Marcy needs to triple the

tia_tia [17]

Answer:

She estimates that the tripled recipe will need

✔ less than 3

cups of chicken broth.

The exact amount of chicken broth needed is

✔ 9/4

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Step-by-step explanation:

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3 years ago

Cos (90-theta) • cosec90-theta) =tano. How?

denis-greek [22]

Answer:

______________________________________________________

TRIGONOMETRY IDENTITIES TO BE USED IN THE QUESTION :-

For any right angled triangle with one angle α ,

$\cos (90 - \alpha ) = \sin \alpha$ or $\sin(90 - \alpha ) = \cos\alpha$

$cosec \: (90 - \alpha ) = \sec\alpha$ or $\sec(90 - \alpha ) = cosec\:\alpha$

SOME GENERAL TRIGNOMETRIC FORMULAS :-

$\sin \alpha = \frac{1}{cosec \: \alpha }$ or $cosec \: \alpha = \frac{1}{\sin \alpha }$

$\cos \alpha = \frac{1}{\sec \alpha }$ or $\sec \alpha = \frac{1}{\cos \alpha }$

______________________________________________________

Now , lets come to the question.

In a right angled triangle , let one angle be α (in place of theta) .

So , lets solve L.H.S.

$\cos (90 - \alpha ) \times cosec(90 - \alpha )$

$=> sin\alpha \times \sec\alpha$

$=> \sin\alpha \times \frac{1}{\cos\alpha }$

$=> \frac{\sin\alpha }{\cos\alpha }$

$=> \tan\alpha$ = R.H.S.

∴ L.H.S. = R.H.S. (Proved)

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3 years ago

The ratio of red jelly beans to yellow jelly beans in a dish is 3:4. If Greg eats 3 red jelly beans and six tallow ones, tie rat

liubo4ka [24]

Disclamer: the following is confusing but I will transcribe what is going on in my head

3:4, 3+4=7
4:5, 4+5=9

hm
we can do fractions

3:4, 4 units is yellow
4/7 of all is yellow

4:5, 5/9 of all is yellow

all end is all-9

yellow intial=6+yellowfinal

yellowinitial=(4/7)all
(let's say all=x)
yi=(4/7)x
final=(5/9)(x-9)

yi=6+yf
(4/7)x=6+(5/9)(x-9)
times both sides by 63
36x=378+35(x-9)
distribute
36x=378+35x-315
36x=35x+63
minus 35x both sides
x=63

yellow=(4/7)(x)
yellow=(4/7)(63)
yellow=36

there wer 36 originally

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3 years ago

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Answer:

its b

Step-by-step explanation:

yeah cause 8 times whatever 5 plus w is

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