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4 years ago

1. How do you graph the solution set to a system of linear inequalities in two variables?

1 answer:

4 0

I can answer #2
No solution: The lines on the graph would show up as parallell
One Solution: The lines on the graph would have one meeting point
I<span>nfinitely many solutions: The lines would be overlapping each other
Hope this helps :)</span>

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Five yards of material is needed to make

Mkey [24]

Answer:

The y-coordinate would be 17.5

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Let

y ----->material needed in yards

x ----> number of curtains

we know that

For y=5, x=2

Find the value of the constant of proportionality k

$k=y/x$

substitute the given values of x and y

$k=\frac{5}{2}=2.5$

The linear equation is equal to

$y=2.5x$

If the x-coordinate was 7

then

substitute in the equation x=7 and solve for y

$y=2.5(7)$

$y=17.5$

therefore

The y-coordinate would be 17.5

6 0

3 years ago

Sum of two number is 120. If the larger number is four times the smaller number, wbat are the two numbers

tankabanditka [31]

x+y=120_______1

x=4*y_________2

x=4y

substitute 4y for x in equation 1

`4y+y=120

5y=120

eliminate the coefficient of y

y=120/5

y=24

now,input 24 for y in equation 2

`x=4y

x=4*24

x=96

thus, the numbers are

96 and 24

3 0

3 years ago

The Girls’ Club bakes 63 cakes for the summer fair.

andrew-mc [135]

Answer:

Step-by-step explanation:

63 - 18 = 45 ( Minus the number of cakes that are left over)

45 / 3 = 15 (Divide by 3 to find out how many cakes they sold each day)

3 0

3 years ago

A salesperson earns a commission of a certain percentage on the original price of any items he helps you buy. The salesperson he

attashe74 [19]

Answer:

5.18%

Step-by-step explanation:

5.76 x 100 = 576

576 ÷ 100 = 5.184

5.184 = 5.18%

4 0

3 years ago

When the ball has traveled a distance of

frutty [35]

Answer:

(2.5,10.5)

Step-by-step explanation:

Given that a ball is thrown verically upwards with an initial velocity. We know that the path is a trajectory as a parabola.

From graph we find that horizontal is in yards and vertical is in feet.

WE have to find the coordinates of A

When ball is thrown upward, acceleration due to gravity is -32 ft/s^2

Since height = s=+h0

we get h0 as initial height.

But without any calculation from the graph we find out these coordinates as

x coordinate = 2.5(since in the middle of 0 and 5)

y coordinate = 10.5(since in the middle of 9 and 12)

(2.5,10.5) is the coordinate of A

7 0

3 years ago