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3 years ago

Solve for X. picture attached (15 points)

Mathematics

2 answers:

Law Incorporation [45]3 years ago

4 0

Answer: (In order)75,63,20,55,23,17

Please give me the brainiest this took so long

Step-by-step explanation:

47+58= 105

180-105= 75

1st problem- x= 75

96+21= 117

180-117= 63

2nd problem- x= 63

90+31+3x-1=180

90+31+(-1)= 120

180-120=60

3x=60

÷3 ÷3

3rd problem- x=20

21+34=55

180-55=125

4th problem- x=55

80+2x+3+51

80+3+51=134

180-134=46

2x=46

÷2 ÷2

5th problem- x=23

180-94=86

86+60+2x=180

86+60=146

180-146=34

2x=34

÷2 ÷2

6th problem- x=17

nikklg [1K]3 years ago

3 0

Answer:

1) 75

2) 63

Ask if you want more

Step-by-step explanation:

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A pharmacist wishes to mix a solution that is 6% Minoxidil. She has on hand 100 ml of a 2% solution and wishes to add some 8% so

son4ous [18]

Answer:

200 ml

Step-by-step explanation:

It's proportions basically.

frst off, 2% of 100 ml is 2 ml, so the 100 ml solution has 2 ml of Minoxidil.

Eventually we want 6/100 to be the porportion. so the total is going to be 100 (from the initial 100 ml) plus however much is needed x. And we want the amount of Minoxidil to be 2 + 8 percent of x. so this gets us the equation

6/100 = (2 + .08x)/(100+x) Then we solve

(100 + x) 6/100 = 2 + .08x

(100 + x) 6 = 200 + 8x

600 + 6x = 200 + 8x

400 = 2x

x = 200

so they should add 200 ml

You can check too. there is 100 + 200 ml of solution total and 2 + 16 ml of Minoxidil so that's 18/300 = 6/100

6 0

3 years ago

How do you solve this step by step?

mestny [16]

Answer:

$x = 9$

Step-by-step explanation:

$3x - 5x + 8x = 4x + 18$

$- 2x + 8x = 4x + 18$

$6x = 4x + 18$

$2x = 18$

$x = 9$

8 0

3 years ago

3/4(8x-4)=7x+2, I need to find out the answer

laiz [17]

Answer: x = -5

Step-by-step explanation:

First convert 3/4 to decimal= 0.75

0.75 (8x - 4) = 7x + 2

6x - 3 = 7x + 2

Transpose 7x from right hand side to the left hand side

6x - 7x = 2 + 3

-x = 5

x = -5

I hope this helps.

8 0

3 years ago

Simplify sin^2y/sec^2 y−1 to a single trigonometric function

liubo4ka [24]

Answer:

$\frac{ { \sin}^{2} y}{ { \sec}^{2}y - 1 } = { \cos }^{2} y$

Step-by-step explanation:

We know that ${ \tan }^{2} y = { \sec }^{2} y - 1$

Also , ${ \tan}^{2} y = \frac{ { \sin }^{2} y}{ { \cos }^{2}y }$

So ,

$\frac{ { \sin }^{2}y }{ { \sec }^{2}y - 1 } = \frac{ { \sin}^{2} y}{ { \tan }^{2} y} = \frac{ { \sin }^{2}y }{ \frac{ { \sin}^{2} y}{ { \cos}^{2}y } } = { \cos }^{2} y$

6 0

2 years ago

Solve the equation p/4+10=14

Gelneren [198K]

Answer:

p=16

Step-by-step explanation:

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3 years ago

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