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3 years ago

I need help asap please help me.

Mathematics

2 answers:

Genrish500 [490]3 years ago

5 0

Okay so, $16.80 - $6.30= $10.50

So the answer is $10.50

Olin [163]3 years ago

4 0

So, the total cost is 16.80. The bead cost 6.30, so you need to subtract. 16.80 - 6.30 is 10.50. To figure out how much EACH pendant cost, you divide your answer (10.50) by 3 because there are 3 pendants. 10.50 divided by 3 is 3.50. Each pendant cost $3.50.

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3 years ago

Two ways to solve -2(4x+3)=12x-6

olasank [31]

Answer:

$\huge\boxed{x=0}$

Step-by-step explanation:

$-2(4x+3)=12x-6\qquad\text{divide both sides by (-2)}\\\\4x+3=-6x+3\qquad\text{subtract 3 from both sides}\\\\4x=-6x\qquad\text{add}\ 6x\ \text{to both sides}\\\\10x=0\qquad\text{divide both sides by 10}\\\\\boxed{x=0}\\\\=================================$

$-2(4x+3)=12x-6\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\(-2)(4x)+(-2)(3)=12x-6\\\\-8x-6=12x-6\qquad\text{add 6 to both sides}\\\\-8x=12x\qquad\text{subtract}\ 12x\ \text{from both sides}\\\\-20x=0\qquad\text{divide both sides by}\ (-20)\\\\\boxed{x=0}$

4 0

3 years ago

It's D, all real numbers greater than or equal to -3<br> i got %100 in the test

Artyom0805 [142]

Answer:

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Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

What is the value of x?

Westkost [7]

Answer:

x is equal to 20 in this picture.

Step-by-step explanation:

In order to find this, we need to note that these two angles will be equal to each other. Now we can put their values equal to each other and solve for x.

3x + 50 = 6x - 10

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3 years ago

A chemist wants to mix a solution of 20% chlorine with a solution of 60% chlorine to make 120 liters of 30% solution of chlorine

Mama L [17]

Answer:

90 and 30 liters

Step-by-step explanation:

1) if solution of 20% is 'x' and of 60% is 'y' liters, then

2) the pure chlorine is: for solution of 20% - 0.2x, for solution of 60% - 0.6y and

3) the mix of the two solutions is 120=x+y.

4) using these items it is possible to make up the system of two equations:

$\left \{ {{x+y=120} \atop {0.2x+0.6y=0.3(x+y)}} \right.$

5) finally, x=90 liters of 20%; y=30 liters of 60% solution.

8 0

3 years ago