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3 years ago

What is the intercept of 4x+y=7

Mathematics

1 answer:

Alexxandr [17]3 years ago

3 0

Answer:

y-int: 7

Step-by-step explanation:

the y intercept of an equation is the "b" in, y=mx+b

For this problem you have to convert the current equation to y=mx+b form

4x+y=7

-4x -4x

y= -4x +7

7 is your b, which is your y intercept

if you have any questions, don't hesitate to ask :)

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Umnica [9.8K]

The system of equations x+y=46 and 15x+9y=396 could be used to find the number of boxes of each item sold.

Step-by-step explanation:

Given,

Cost of one box of raspberry scones = $15.00

Cost of one box of lemon poppy seed muffins = $9.00

Total boxes sold = 46

Total revenue earned = $396

Let,

x be the number of raspberry scones sold.

y be the number of lemon poppy seed muffins sold.

According to given statement;

x+y=46 Eqn 1

15x+9y=396 Eqn 2

The system of equations x+y=46 and 15x+9y=396 could be used to find the number of boxes of each item sold.

8 0

3 years ago

there are 3 people who work full-time and are to work together on a project but their total time on the project is to be equival

mina [271]

The problem express that the fraction of time worked by the three people need to be equivalent to one person working full time. This means that the fraction need to add up to one. We know one person works ½ time on the project and another works one third 1/3 time.

Given:

A = the amount of time that the third person needs to work on the job to add up to one

1 = ½ +1/3 + A

1 – ½ - 1/3 = A

To subtract the fractions put them all over a common denominator. Use 3 * 2 as the denominator.

1=6/6, ½ = 3/6, 1/3 = 2/6

A = 6/6 – 3/6 – 2/6

A = 1/6 , The third person must work on the project

6 0

3 years ago

PLZ HELP ME WITH THIS!! 5/2 c = 8 1/3 *

TiliK225 [7]

Answer:

its is 3 1/3 becuae i solved it and also it has to do with step by step

4 0

3 years ago

Which expression is equivalent to -6x9y -3(2x+3y) -3(2x-3y) 3(2x-3y) -3(2x+9)

Olegator [25]

Answer:

The expression that is equivalent to -6x+9y would be -3(2x-3y)

7 0

3 years ago

Read 2 more answers

A relation is plotted as a linear function on the coordinate plane starting at point C (0,−1)(0,−1) and ending at point D (2,−11

Alika [10]

To find the rate of change, or slope, pick two points. The slope, is change in y coordinates over change in x coordinates.
$slope = \frac{y2-y1}{x2-x1}$ .

In this case, the slope is
$\frac{-11+1}{2-0} = \frac{-10}{2} = -5$ .
Remember that subtracting a negative number equals adding the number without the negative sign.
a-(-b) = a+b

Now for the y-intercept. The y-intercept is where the graph intersects the y-axis, where x = 0.
You have the coordinate (0, -1), where x = 0. So the y-intercept is -1.

Putting these values into the slope-intercept form y = mx+b, the equation is
y = -5x - 1

4 0

3 years ago