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3 years ago

Can somebody help this is due in an hour

Mathematics

2 answers:

STALIN [3.7K]3 years ago

5 0

18x-16y=5
Subtract 18x from each side
-16y=-18x+5
Divide by -16
y=18/16x-5/16

y=9/8x-5/16 this one is with improper fractions

Nana76 [90]3 years ago

3 0

Answer:

$\large\boxed{y=\dfrac{9}{8}x-\dfrac{5}{16}}$

Step-by-step explanation:

The slope-intercept form of an equation of a line:

$y=mx+b$

m - slope

b - y-intercept

We have the equation of a line in the standard form (Ax + By = C).

Convert it to the slope-intercept form:

$18x-16y=5$ subtract 18x from both sides

[tex[18x-18x-16y=-18x+5[/tex]

$-16y=-18x+5$ divide both sides by (-16)

$\dfrac{-16y}{-16}=\dfrac{-18x}{-16}+\dfrac{5}{-16}\\\\y=\dfrac{18:2}{16:2}x-\dfrac{5}{16}\\\\y=\dfrac{9}{8}x-\dfrac{5}{16}$

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Solve each equation by graphing both sides of the equation or inequality

Andrews [41]

Answer:

see below

Step-by-step explanation:

6. $-3x^2+9=-3$

$-3x^2 =-12$

$x^2=4$

$x=$ ± $2$

Solution: $x=2, x=-2$

Points of intersection: (2, -3) and (-2, -3)

7. $(x-2)^2-10\leq (x-6)^2-2$

$x^2-4x+4-10\leq x^2-12x+36-2$

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3 years ago

What transformations change the graph F(x) to the graph g(x)

Lemur [1.5K]

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3 years ago

A line has a slope of 0.5 and passes through the point (0,5). What is the equation of the line?

EleoNora [17]

Step-by-step explanation:

Hi there!

From the question;

The slope of the line is 5/10 or 0.5.

Also the equation of the line passes through the point (0,5).

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So, use the formula here and keep the values;

(y-5) = 5/10(x-0)

or, 10(y-5) = 5x

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Therefore, the required equation is 5x - 10y +50 = 0 or x-2y+10 = 0.

Hope it helps!

6 0

2 years ago

Match the real-world problem to its constant of proportionality.

BabaBlast [244]

Answer:

a. $18.36 for 3 pizzas : k = 6.12

b. $4.17 for 3 pounds of bananas . k = 1.39

c. $16.48 for 4 pounds of potatoes . k = 4.12

d. 2 cups of flour to make 24 cookie . k = 2

Step-by-step explanation:

PROPORTIONALITY:

Two quantities x and y are said to proportional to each other

if for x ∝ y , x = y k.

Here, k i s called the PROPORTIONALITY CONSTANT.

⇒ $x \propto y \implies k = \frac{x}{y}$

Now, for the given quantities:

a. $18.36 for 3 pizzas [box]

Here, $k = \frac{18.36}{3} = 6.12$

So, the proportionality constant is 6.12.

b. $4.17 for 3 pounds of bananas [box]

Here, $k = \frac{4.17}{3} = 1.39$

So, the proportionality constant is 1.39.

c. $16.48 for 4 pounds of potatoes [box]

Here, $k = \frac{16.48}{4} = 4.12$

So, the proportionality constant is 4.12.

d. 2 cups of flour to make 24 cookies

Here, $k = \frac{24}{2} = 12$

So, the proportionality constant is 12

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4 years ago

How to do the problem

Veronika [31]

Ill work it out w/ the steps so you can do it later on. STEP 1) multiply 95 by .10 to get 9.5 STEP 2) subtract 9.5 from 95 to get 85.5, your new price STEP 3) multiply 85.5 by 1.045 *mini step to get 1.045: add 4.5 to 100, get 104.5, divide by 100, get 1.045* then you get $89.35

8 0

3 years ago