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3 years ago

How do I work out the problem 9y= -6x+42

Mathematics

2 answers:

erik [133]3 years ago

5 0

Divide everything by 9 to get y by itself.

Umnica [9.8K]3 years ago

4 0

So, it looks like it is in slope-intercept form! Yet you need to get "Y" by itself in order it to be y=mx+b (slope-intercept form)

Step 1:

9y=-6x+42
--- --------- INVERSE OPERATIONS: Divide by 9!
9 9

y=-6/9x+ 42/9

Step 2: Take your new equation and SIMPLIFY/reduce its fractions.

(all these numbers are multiple of 3, so they can be divided by 3 to turn them into it's most simplest form)

y=-2/3x+ 14/3

Step 3: Identify your final answer.

y=-2/3x +14/3

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dsp73

Answer:

2(x+y)

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2 years ago

3(x+3)+3x=15 Solution and check Shown in attachment below

OLga [1]

3x + 9 + 3x =15
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3 years ago

If the diameter of the semicircle is 1.7 centimeters, what is the circumference of the semicircle?

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3 years ago

Ms.Omar runs the school tennis club. She has a bin of tennis balls and rackets. For every 5 tennis balls in the bin, there are 3

stepan [7]

Answer:

see the explanation

Step-by-step explanation:

Let

x ----> number of tennis balls

y ----> number of tennis rackets

we know that

To find out the ratio of tennis balls to tennis rackets, divide the number of tennis ball by the number of tennis rackets

In this problem we have

$\frac{x}{y}=\frac{5}{3}$

$x=\frac{5}{3}y$

That means

The number of tennis balls is three-fifths times the number of tennis rackets

see the attached figure to better understand the problem

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3 years ago