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3 years ago

Solve 2.5=x/6. I’m confused

Mathematics

1 answer:

aliya0001 [1]3 years ago

8 0

Answer:

X = 15

Step-by-step explanation:

2.5 = x/6

2.5*6 = X

X = 15

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3. y=37x+11y=37x+11 -3x + 7y = 13 Part A: Convert the second equation to slope-intercept form. Show your work! Part B: Determine

melamori03 [73]

We are given first equation y= $\frac{3}{7}$ x+11.

Second equation is -3x + 7y = 13.

Part A: We need to convert that second equation in slope-intercept form y=mx+b.

In order to convert it in slope-intercept form, we need to isolate it for y.

-3x + 7y = 13

Adding 3x on both sides, we get

-3x+3x + 7y = 3x+13

7y = 3x +13.

Dividing both sides by 7, we get

7y/7 = 3x/7 +13/7.

Slope for first equation y=3/7 x +11 is 3/7 and slope of second equation y= 3/7 x + 13/7 is also 3/7.

Slopes are same for both equations.

<h3>Part B: Therefore, lines are parallel due to equal slopes.</h3>

7 0

3 years ago

Tomato plants $.40 each. Pepper plant $.35 each.Kevin wants to buy at least 20 plants for no more than $7.50.Let tomato plants =

Vitek1552 [10]

Answer:

10x and 10y

Step-by-step explanation:

.40×10=4

.35×10=3.5

6 0

3 years ago

How do you do 4x^2+3x-10=0

Likurg_2 [28]

$4x^2+3x-10=0\\
4x^2+8x-5x-10=0\\
4x(x+2)-5(x+2)=0\\
(4x-5)(x+2)=0\\
x=\dfrac{5}{4} \vee x=-2
$

8 0

4 years ago

Find a solution of the linear inequality

evablogger [386]

Can i see the question there is no graph

3 0

4 years ago

Consider the line 2x-7y=-7. Find the equation of the line that is perpendicular to this line and passes through the point (-8,-6

monitta

Step-by-step explanation:

2x - 7y = -7

2x + 7 = 7y

y = (2/7)x + 1

the slope of the line is the factor of x : 2/7

FYI that is the ratio y/x and means, when x changes by 7 points to the plus (right) side, then y changes 2 points to the plus (up) side.

the parallel line will have the same slope, of course. just a different y-axis-interception point. that means, the "+" term at the end changes. changes to what ?

well, we use the given point coordinates

-6 = (2/7)×-8 + c

-6 = -16/7 + c

-42/7 = -16/7 + c

-26/7 = c

so, the equation of the parallel line is

y = (2/7)x - 26/7

y = (2/7)×(x - 13)

the perpendicular line is a line that intercepts our original line with a 90 degree angle.

that means its slope will switch x and y of the original line slope and also flips the sign (from + to - or vice versa).

=> the slope of the perpendicular line is -7/2.

the line equation looks like

y = (-7/2)x + c

and again, we use the given point coordinates to find the missing c (y-intercept).

-6 = (-7/2)×-8 + c

-6 = -7×-4 +c

-6 = 28 + c

-34 = c

so, the full equation of the perpendicular line is

y = (-7/2)x - 34

6 0

3 years ago