2 years ago

Substitution 4x+y=-5 -2x-8y= -20

Mathematics

1 answer:

erma4kov [3.2K]2 years ago

7 0

Answer:

35 over 6 an 10 over 3

Step-by-step explanation:

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If I got 15 credits in i need 24 to graduate how many more i need

Olegator [25]

Step-by-step explanation:

I would have 9 to graduate

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3 years ago

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Can anyone else not see answers rn???

Fofino [41]

Yeah i cant see them either

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2 years ago

Write a function<br> Rule for the output<br> Is seven more than<br> the input

Nadusha1986 [10]

Answer:

f(x) = x + 7

y=x+7

Step-by-step explanation:

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2 years ago

The description for a certain brand of house paint claims a coverage of 460 ft2/gal. (a) express this quantity in square meters

Angelina_Jolie [31]

Given 460 $ft^2/gal$

a) convert it into $m^2/l$

=> It means $ft^2 -> m^2$ and $gal -> l$

1 ft = 0.3048 m

$1 ft^2 = 0.092903 m^2$

1 gal = 3.78541 l

$460ft^2= [tex]460\frac{ft^2}{gal} = \frac{42.7354m^2}{3.78541l} = 11.2895m^2/l$ m^2[/tex].

b. $11.2895\frac{m^{2} }{l} *1000\frac{l}{m^3} =11289.5 m^{-1}$

c.Given= $460\frac{ft^2}{gal}$

To find inverse, divide it by 1.

Inverse- $\frac{1}{460} \frac{gal}{ft^2}$

6 0

3 years ago

Is -x+4y=-2 a direct variation?

In-s [12.5K]

Answer:

Step-by-step explanation:

Direct variation: two variables, one variable is a constant multiple of another variable

y = k x .... k constant

-x+4y=-2

4y = x - 2

y = 1/4 x -1/2 ..... y = k x + b y is not a simple multiple of x

6 0

3 years ago