Need help to solve it in standard form ( y= mx+b )
4x+9y= -63
2x-3y= -9​

Answer:

After paying her suppliers, she made $4,575.

Step-by-step explanation:

First, you have to multiply the number of pounds purchased for the price:

$1.29*1250=$1,612.5

$1.50*1500=$2,250

Now, you can add both amounts to find the total cost:

$1,612.5+$2,250=$3,862.5

Now, you have to find the total amount of lb purchased and determine the kg they represent given that 1 kg is equal to 2.20 lb:

1250+1500=2750

2.20 lb  →  1 kg

2750 lb →    x

x=(2750*1)/2.20= 1250 kg

Now, you can find the total amount sold by multiplying the price per kilogram for the amount of kg:

$6.75*1250=$8,437.5

Finally, you have to subtract the total cost from the total amount sold:

$8,437.5-$3,862.5=$4,575

According to this, the answer is that after paying her suppliers, she made $4,575.

Answer:

y=5/3x+7/3

Step-by-step explanation:

Here are the points: (1,4) and (-2, -1)

let's first find the slope, which is with the equation m=(y2-y1)/(x2-x1) (m is the slope)

label the points:

x1=1

y1=4

x2=-2

y2=-1

now subsitute into the equation

m=(-1-4)/(-2-1)

m=-5/-3

m=5/3

the slope of the line 5/3

Here's the equation so far:

y=5/3x+b (b is a place holder)

we can substitute either one of the points into the equation so far to find b, because the line will pass through both of them>

let's use (1,4) as an example

4=5/3(1)+b

4=5/3+b

subtract 5/3 from both sides

7/3=b

Now, put it all together:

y=5/3x+7/3

Hope this helps!

Answer:

x = ⅘

Step-by-step explanation:

For clarity, exponents should be marked with a ^.  25x² can be written as 25x^2.

25x² = 16

divide both sides by the 25

x² = 16/25

take the square root of both sides

x = √(16/25) = √16/√25 = 4/5

Answer:

25%

Step-by-step explanation:

See a solution process below: Explanation: We can use this formula to solve this problem: s=p−(d×p). Where: s is the sales price: what we are

Answer:

Andy's claim is incorrect

Step-by-step explanation:

Given

Mike:

[tex]Tuesday = \frac{2}{4}[/tex]

[tex]Wednesday = \frac{1}{3}[/tex]

Andy:

[tex]Tuesday = \frac{1}{2}[/tex]

[tex]Wednesday = \frac{1}{5}[/tex]

Required

Is Andy correct?

First, we need to calculate the fraction of book read by Mike.

[tex]Mike = \frac{2}{4} + \frac{1}{3}[/tex]

Take LCM

[tex]Mike = \frac{6+4}{12}[/tex]

[tex]Mike = \frac{10}{12}[/tex]

Convert to decimal

[tex]Mike = 0.833\\[/tex]

Next, we perform the same calcuation for Andy

[tex]Andy = \frac{1}{2} + \frac{1}{5}[/tex]

Take LCM

[tex]Andy = \frac{5+2}{10}[/tex]

[tex]Andy = \frac{7}{10}[/tex]

Convert to decimal

[tex]Andy = 0.70[/tex]

Andy's claim that he read more of the book is incorrect because 0.833 (for Mike) is greater than 0.70 (for Andy)

Answer:

[tex]p\le 14.28[/tex]

Step-by-step explanation:

Total budget for school stationery = $37

She has already spent $22.72 on books and folders.

Left amount = $37 - $22.72

= $14.28

Let p represent the amount that Sally can spend on other stationery. It implies that "p" must be less than or equal to $14.28 .

Hence, the required inequality is :

[tex]p\le 14.28[/tex]

Answer:

small number = 28/5 or 5 3/5

larger number = 13/5 or 2 3/5

Step-by-step explanation:

x = small number

y = large number

set up a system of equations:

x - y = 3

3y + 2x = 19

using substitution method:

let x = 3 + y

3y + 2(3 + y) = 19

3y + 6 + 2y = 19

5y + 6 = 19

5y = 13

y = 13/5

solve for x:

x - 13/5 = 3

x = 15/5 + 13/5

x = 28/5

Hey again!

The answer to your question is 10 meters.

We can solve this by multiplying 15 and 2/3, and you get 10

Hope it helps!

Answer:

[tex]5\ \text{ft}[/tex]

Step-by-step explanation:

Perimeter of rectangular lot = [tex]448\ \text{ft}[/tex]

The width of the easement is [tex]x\ \text{ft}[/tex]

Buildable area 140 ft by 64 ft

[tex]2(140+2x)+2(64+2x)=448\\\Rightarrow 140+2x+64+2x=\dfrac{448}{2}\\\Rightarrow 204+4x=224\\\Rightarrow x=\dfrac{224-204}{4}\\\Rightarrow x=5\ \text{ft}[/tex]

The width of the easement is [tex]5\ \text{ft}[/tex].

Answer:

x is 2.4

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

7/10

Answer:

Slope/m=1/2, y-intercept=-4

Step-by-step explanation:

Y=mx+b is slope-intercept form. So in the equation y=1/2x-4, m stands for the slope, and in the equation 1/2 is in the place of m. B stands for the y-intercept, and in its place is -4.

Ahem, I'm writing with a mouse, excuse the scraggly lines and writing on the graph.

Answer:

(-2, 1) and (0, 3) has the slope of m = 1 and the equation is y = x + 3

(0, -2) and (3, -5) has the slope of m = 1 and the equation is y = -x - 2

Step-by-step explanation:

Hope this helps!

Answer:

4

Step-by-step explanation:

Okay, so the first step is to divide 30 and 5.  You should get 6.

Then all you have to do is divide 24 and 6.  You should get 4.

Answer:

Step-by-step explanation:

here is an example in the shown file

Answer:

y= -3x+1

Step-by-step explanation:

Answer:

Neither

Step-by-step explanation:

The slope of PQ is -3.

The slope of RS is 3.

Parallel lines have the same slope. The slopes for perpendicular lines are the opposite of the reciprocal. PQ and RS are intersecting lines, but not parallel or perpendicular.

Answer:

I think it’s a but if not a then d

Step-by-step explanation:

Answer:

i think A

plz give me brainliest but plz correct if wrong

Step-by-step explanation:

Soil is often considered an abiotic factor since it is mostly made up of small particles of rock (sand and clay) mixed with decomposed plants and animals. Plants use their roots to get water and nutrients from the soil.

Also just a tip, make sure to put it in the correct category next time cause someone can report it :(

Anyways hope this helps!! :D

Answer:

either 100 or 107

hope it's correct

Answer:

236

Step-by-step explanation:

24%=.24

.24x190=46

46+190=236

Answer: 46ft

Step-by-step explanation:

You take the area and find it's square root then multiply it by how many sides there are to the figure in this case it is 4 sides so you multiply it by 4 getting 46

Answer:

AB = 12.5

Step-by-step explanation:

BX is an altitude and a median. That means that triangle ABC is isosceles.

AB = CB

AB = 12.5

Answer:

-3g -4

Step-by-step explanation:

plz brainestt

Answer:

-3g-4

Step-by-step explanation:

Distribute the minus sign

-2g+7-g-11

(-2g-g) + (7-11)

-3g-4

Answer:

86

Step-by-step explanation:

I just subtracted 198 and 112

Answer:

19

Step-by-step explanation:

the only way u can get 19 is if you multiply 19x1 but other than that you cant get the number

the other numbers have more than one multiple but 19 only has one multiple

Answer:

19

Step-by-step explanation:

the only factors multiplyed that can make 19 is 1 and 19

15:1, 3, 5, 15

18:1, 2, 3, 6, 9, 18

22:1, 2, 11, 22

19:1, 19

take care