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BlackZzzverrR [31]
3 years ago
11

1. What is the x-intercept for the equation -2x+5y =-10?​

Mathematics
2 answers:
kirill115 [55]3 years ago
6 0

Think about the axis for a moment. You have the y-axis and the x-axis. The y-axis crosses the x-axis at y=0. Consequently the graph must also cross the x-axis when its equation has its y-value set to 0.

Likewise the graph will cross the y-axis when x=0

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Solving your question

To find the x-intercept set y=0 giving

- 2x  + 5(0) =  - 10 \\  - 2x =  - 1 |?|

Multiply both sides by ( -1) giving

2x = 10

Divide both sides by 2 giving

\frac{2}{2}  \times x =  \frac{10}{2}  \\

But \frac{2}{2} = 1 \:   \\ giving

<h3>x =  \frac{10}{2} \\</h3>

<em>-</em><em> </em><em>BRAINLIEST</em><em> answerer</em>

vfiekz [6]3 years ago
5 0

Answer:

2x-5y=10 in slope intercept form is y=2/5x-2. The x intercept would be 5 and the y intercept would be -2. The slope is 2/5.

Step-by-step explanation:

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A student is selling small and large frozen pizzas for a school fund-raiser.
dexar [7]

System of equations:

We'll need one equation for the amount of pizzas, and another for the total cost of the pizzas. In this case, x will represent small pizzas, and y will represent large pizzas.

3x + 4y = 100

x + y = 30

Solving the system of equations:

First, we need to solve for one variable in one equation.

x + y = 30

x = 30 - y

Then, we'll take our equation that is solved for x and plug it into the other equation from above.

3(30 - y) + 4y = 100

Next, we solve for y.

90 - 3y + 4y = 100

90 + y = 100

y = 10

Finally, we take our value for y and plug it back in to the very first equation and solve for x.

x = 30 - 10

x = 20

Answer:

The student has sold 10 large pizzas and 20 small pizzas.

Hope this helps!! :)

6 0
3 years ago
How do I do this problem?
Vikentia [17]
You use the distributive property and multiple everything inside of the parentheses by 2x^2 then everything in the parentheses by y to get 2x^4y-6x^3y^2+16x^2y^3. I think that’s the answer and I hope that helped!
8 0
3 years ago
Simplify the expression and write the answer as a reduced fraction.
stealth61 [152]
1 7/6 divided by 1 3/5 = 5/5 as a reduced fraction!
7 0
3 years ago
Read 2 more answers
PLEASE HURRY AND ANSWER CORRECT ANSWER GETS 99 POINTS AND MARKED AS BRAINLIEST
Alexandra [31]

Answer:

The rate of change is 2

What is the Rate of Change?

A rate of change defines how one quantity changes in relation to another quantity. The rate of change can be either positive or negative. Since the slope of a line is the ratio of vertical and horizontal change between two points on the plane or a line, then the slope equals the ratio of the rise and the run.

Where, rise is the vertical change between two points and run is the horizontal change between two points.

Standard Formula

The standard form for the rate of change of slope, m is given by

Rate of change = Rise/ Run

= Δy / Δx

Therefore, the rate of change of slope =(y2 – y1) / (x2 – x1)

Where

Δ represents the rate of change

(x1, x2) is the X coordinates

(y1, y2) is the Y coordinates

What is meant by slope?

The slope represents the gradient of the line. It is denoted by the symbol “m”. It defines the rate of change.

Can a slope be negative?

A slope can be either positive or negative. If a line has a positive slope (i.e., m > 0), then y always increases when x increases and y always decreases when x decreases. Also, if a line has a negative slope (i.e., m<0), then y always increases when x decreases and y always decreases when x increases.

What is the formula for the slope?

The formula to find the slope is

m = (y2 – y1) / (x2 – x1)

Where

(x1, x2) is the X coordinates

(y1, y2) is the Y coordinates

4 0
3 years ago
Question Help
mixer [17]

Answer:

0.2 lb of ham in decimal digits

Step-by-step explanation:

At a grocery store, you want to buy 2/1/10 lb of ham

2 / 1 divided by 10

2/1 = 2 so now

2/ 10 = 1/ 5

Hence, 0.2lb of ham in decimal digits

8 0
3 years ago
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