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3 years ago

Given the equation -2x+3y=12, find the missing value in the ordered pair 3, Noo linkss plz

Mathematics

1 answer:

astraxan [27]3 years ago

5 0

Answer:

(3,6)

Step-by-step explanation:

-2x+3y=12

Let x = 3

-2(3) +3y = 12

-6+3y = 12

Add 6 to each side

-6+6 +3y = 12+6

3y = 18

Divide each side by 3

3y/3 = 18/3

y = 6

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3 years ago

Line b passes through the Point(-3, -4) and has a slope of -1/2. What is the equation of Line b in standard form?

Anna11 [10]

Answer:

$x+2y=-11$

Step-by-step explanation:

Slope intercept form of a line is given by:

$y=mx+b$

Where

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Given slope is $-\frac{1}{2}$

We can write:

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Now to find b, we replace x with -3 and y with -4, given, so we have:

$y=-\frac{1}{2}x+b\\-4=-\frac{1}{2}(-3)+b\\-4=\frac{3}{2}+b\\b=-5.5$

So, the equation is:

$y=-\frac{1}{2}x-\frac{11}{2}$

Now,

The standard form is given by:

$Ax+By=C$

So, we take x and y to left side and the constant to right side. Rearranging, we get:

$y=-\frac{1}{2}x-\frac{11}{2}\\2y=-x-11\\x+2y=-11$

The first answer choice is right.

3 0

3 years ago

Sandra decided to bake blackberry pies to sell at the county fair. She had $180 in her savings

Hatshy [7]

Answer:

275

Step-by-step explanation:

180-130=50

25*9=225

225+50 = 275

6 0

2 years ago

Please help im desperate

gogolik [260]

Answer:

∠

∘

and

∠

113

∘

Explanation:

By what is given,

∠

∘

...

(

)

, and,

∠

180

∘

...

(

)

Since,

∠

∘

, by (1), we get,

∠

∘

−

∘

Using this in

(

)

, we get,

∠

180

∘

−

∘

113

∘

3 0

2 years ago