3 years ago

What is the value of the variable? 3(x- 2)=15

Mathematics

1 answer:

STatiana [176]3 years ago

4 0

Answer:

x=7

Step-by-step explanation:

To solve for x, you have to multiply the terms in parenthesis by 3. Then you add 6 to each side of the equal sign. Then you divide each side of the equal sign by 3 to get x=7

$3x-6=15\\3x=15+6\\3x=21\\x=21/3\\x=7$

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solmaris [256]

Hi!

Let's put the values in the equation.

10 · 5 + 16 ÷ 4 = ?

Using PEMDAS...

Multiplication
50 + 16 ÷ 4 = ?

Division
50 + 4 = ?

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4 years ago

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If j and k are parallel lines, A and B are points on j, and C and D are points on k, how many planes contain points A, B, C, and

natita [175]

A and B are points on j.

C and D are points on k.

Join AD and BC.

ABCD is a quadrilateral.

Clearly, the quadrilateral ABCD is the only plane that contains the points A, B, C and D.

Hence, correct answer is option A. Exactly one.

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