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4 years ago

PLease help!!!!!!!!!!11

Mathematics

2 answers:

mafiozo [28]4 years ago

7 0

X=-7 I am 100 percent sure this is right

solniwko [45]4 years ago

7 0

3/5x + 5 = 4/5

Multiply throughout by 5

3x + 25 = 4

3x = 4 - 25

3x = -21

Divide by 3 throughout to find x

x = -7

Hope this helps!

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A chemist is using 369 milliliters of a solution of acid and water. If 12.3% of the solution is acid, how many milliliters of ac

Vladimir79 [104]

Step-by-step explanation:

$\frac{12.3}{100} \times 369 = 45.4 \: ml$

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3 years ago

Use the line tool to graph the equation on the coordinate plane. y=−2x

gregori [183]

y = mx +b

y = -2x +0

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3 years ago

Read 2 more answers

The answer choices are -3, 3/2, 3, and -12/5. thanks in advance!! :)

BabaBlast [244]

Answer:

(C). {3}

Step-by-step explanation:

$\frac{x}{2(x+1)}$ = $\frac{-2x}{4(x+1)}$ + $\frac{2x-3}{x+1}$ ( x ≠ - 1 )

$\frac{x}{2(x+1)}$ - $\frac{2x-3}{x+1}$ + $\frac{x}{2(x+1)}$ = 0

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8 0

3 years ago

3x+y=8________(1) and x²+xy=6________(2) solve this

romanna [79]

Answer:

In first equation if we put the value of x and y (x=2,y=2)than,

3x+y=8

3×x+y=8

3×2+2=8

6+2=8

8=8

in second equation the value of x=2,y=1

x2+xy=6

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3 years ago

Read 2 more answers

Rob is saving to buy a new MP3 player. For every $11 he earns babysitting, he saves $6. On Saturday, Rob earned $44 babysitting.

Anon25 [30]

Answer:

Rob saved $24 on Saturday.

Step-by-step explanation:

Given:

Rob is saving to buy a new MP3 player.

Money earned in baby sitting = $11

Money saved =$6

First we will find the Percentage of amount he saved.

Percentage of amount he saved can calculated by Amount saved divided by total money earned and then multiplying by 100.

framing in equation form we get;

Percentage of amount he saved = $\frac{6}{11} \times 100 \approx 54.55\%$

Now Given:

Money earned in babysitting on Saturday = $44

We need to find the Money he saved on Saturday.

Money Saved can be calculated by Percentage of amount he saved multiplying by Money earned in babysitting on Saturday and then divided by 100.

framing in equation form we get;

Money Saved on Saturday = $\frac{54.55}{100}\times 44 = \$24$

Hence Rob saved $24 on Saturday.

8 0

3 years ago