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Whitepunk [10]
3 years ago
13

Pls answer these 2 questions

Mathematics
2 answers:
Vladimir79 [104]3 years ago
6 0

Answer:

1. 4.75x = 12.35

x =12.35/4.75 = 2.6

2. Ans;

3x + 2 + 4x - 1 \\  (3x + 4x) + (2 - 1) \\  = 7x + 1

I hope I helped you^_^

Rina8888 [55]3 years ago
3 0

1. 4.75x=12.35

  • x=12.35/4.75
  • x=2.6

2. 3x+2+4x-1

  • 3x+4x+2-1
  • 7x+1
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1/5 of the passengers on a bus are young adults and 2/3 of them are children. The remaining passengers are senior citizens. What
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Answer:

Step-by-step explanation:

First, you need to find the fraction of the passengers who are not senior citizens. Add 1/5 and 2/3 to get 13/15.

This means that 13/15 of the passengers aren't senior citizens and 2/15 of the passengers are senior citizens.

Hope i helped!

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4 years ago
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3 0
3 years ago
This is part one of the problem I’m going to post the part two right after this
frez [133]

Answer:

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Step-by-step explanation:

3 0
3 years ago
Evaluate cos(sin^-1(4/5)
PSYCHO15rus [73]

Step-by-step explanation:

Let \:   \: \theta =  \sin^{ - 1}  (\frac{4}{5})  \\  \\  \therefore \:  \sin\theta = \frac{4}{5} \\  \\  \because \:  { \cos}^{2} \theta =1  - { \sin}^{2} \theta  \\  \\  \therefore \: { \cos}^{2} \theta  = 1 - (\frac{4}{5} )^{2}  \\ \\   = 1 -  \frac{16}{25}  \\  \\  =  \frac{25 - 16}{25}  \\  \\  =  \frac{9}{25}  \\  \\   \therefore \:{ \cos}\theta  = \pm \:  \frac{3}{5}  \\  \\  \because \:  \theta \: lie \: in \: the \: first \: quadrant \\  \\  \therefore \: { \cos}\theta  =  \:  \frac{3}{5}  \\ \\  \implies \theta =  { \cos}^{ -1 }  \: \frac{3}{5}\\\\\implies \theta =  { \cos}^{ -1 }  \: \frac{3}{5}= { \sin}^{ -1 }  \: \frac{4}{5} \\  \\  \therefore \:  \cos( \ {sin}^{ - 1}  \frac{4}{5} ) \\ \\ =  \cos( \ {cos}^{ - 1}  \frac{3}{5} )   \\\\ = \frac{3}{5}  \\  \\   \purple{ \boxed{\therefore \: \cos( \ {sin}^{ - 1}  \frac{4}{5} ) = \frac{3}{5}}}

8 0
3 years ago
Which statements are true when using algebra tiles to solve the equation 8x + (–4) = 11x + 5?
kogti [31]

Answer:

See explanation

Step-by-step explanation:

You are given the equation 8x+(-4)=11x+5

1. Add 8 negative x-tiles to both sides of the equation to create a zero pair on the left side. The equation then will have form

8x+(-4)+(-8x)=11x+5+(-8x)\\ \\-4=3x+5

2. Add 5 negative unit tiles to both sides of the equation to create a zero pair on the right side. The equation now is

-4+(-5)=3x+5+(-5)\\ \\-9=3x

3. Divide both sides by 3:

\dfrac{3x}{3}=\dfrac{-9}{3}\\ \\x=-3

7 0
3 years ago
Read 2 more answers
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