HELP PLEASE!!!! math questions:
1. Fill in the blanks to describe how you could identify the number of solutions to a system if you only
knew some points on each line.
Start by finding the _______________ of each line using the points.
Compare the slopes. If they are different, the lines _______________. This means there is
_______________ solution to the system.
You could also plot the points on a _______________ and use this to find the point where the
lines_______________.

2. . Identify the number of solutions from the description of the equations.
Two equations are the same on one side but different on the other. ANSWER:
One of the equations in the system can be rewritten so it is identical to the other equation.ANSWER:

3.Adding the equations in a system of equations can sometimes be helpful in solving a system of
equations. Explain why.

Answer:

16 - 9 = x

i thonk :0

or 16 - 9 = 7

Step-by-step explanation:

Answer:

y = 1.5, x = [tex]1\frac{12}{13}[/tex]

Step-by-step explanation:

The given simultaneous equation system is;

-1 - 2·y = -4...(1)

13·x + 2·y = 28...(2)

By elimination method, we have;

From equation (1);

-1 - 2·y = -4

2·y = 4 - 1 = 3

y = 3/2 = 1.5

y = 1.5

We eliminate 'y' from equation (2) by replacing the value of 'y' with 1.5 as follows;

13·x + 2·y = 28

y = 1.5

∴ 13·x + 2 × 1.5 = 28

13·x = 28 - 3 = 25

x = 25/13 = [tex]1\frac{12}{13}[/tex] = [tex]1.\overline{923076}[/tex]

x = [tex]1\frac{12}{13}[/tex]

Answer:

8

Step-by-step explanation:

56/7 = 8

Answer:

8

56 /p.

is is given that

p = 7

now putting the value of p in question

then we get

56/7

8

hope it helps

Answer:

416.50 pesos

Step-by-step explanation:

Given

Represent the bread with b.

Mayonnaise with m

Ham with h

[tex]Amount\ Paid = 1000[/tex]

Required

Determine the change

From the question: a loaf costs 22.50

This is represented as:

[tex]b = 22.50[/tex]

5 loaves will be:

[tex]5*b = 22.50*5[/tex]

[tex]5b = 112.50[/tex]

A bottle of Mayonnaise costs 55.50

This is represented as:

[tex]m = 55.50[/tex]

2 bottles will be:

[tex]2*m = 55.50*2[/tex]

[tex]2m = 111[/tex]

Lastly,

1kg of ham costs 240

This is represented as:

[tex]h =240[/tex]

1.5kg will be:

[tex]1.5*h =240*1.5[/tex]

[tex]1.5h =360[/tex]

The cost of the items is:

[tex]Costs = 5b + 2m + 1.5h[/tex]

This gives:

[tex]Costs = 112.50 + 111 + 360[/tex]

[tex]Costs =583.50[/tex]

Her change is calculated as:

[tex]Change = Amount\ Paid- Cost[/tex]

[tex]Change = 1000 - 583.50[/tex]

[tex]Change = 416.50[/tex]

Answer:

your answer will be 18 in

Step-by-step explanation:

I hope this helps u ^_^

have a great day

Answer:

I guess a line segment.

Step-by-step explanation:

A line segment is part of a line that is bounded by two distinct end points; line with two endpoints.

I'm not too sure though.

Answer:

maybe $825

Step-by-step explanation:

Im not sure but I think Its accurate

Answer:

20 times greater

Step-by-step explanation:

Given the following

Population of alaska = 6.5 * 10^(5) people

Population of illinois's = 1.3 * 10^(7)people.

To know the number of times population of Illinois in the population of Alaska, we will take their population ratio;

Ratio = Population of illinois's /Population of alaska

Ratio = 1.3 * 10^(7)/6.5 * 10^(5)

Ratio = 0.2 * 10^7-5

Ratio = 0.2 * 10^2

Ratio = 20

Hence the population of Illinois is 20 times greater than population of alaska

Answer:

2 will give you the larger value of 17

Step-by-step explanation:

Answer:

45158

Step-by-step explanation:

Since the colony grows at a rate of 12%, after 2 years there will be [tex]36000\cdot 1.12^2 = 45158.4[/tex] bacteria. Since you probably can't have part of a bacteria, you round to 45158.

Answer:

45158

Step-by-step explanation:

Since the colony grows at a rate of 12°/• , after 2 years there will be 36000.

1.12 power of 2 = 45158.4 bacteria.

And you cant have part of a bacteria

you round it to

45158.

Answer:

This is ur answer.

Hope.it helps!!!

Answer:

Side = 0.7 units

Step-by-step explanation:

Area of a square = 0.49 sq. units

Side² = 0.49

side² = [tex]\frac{49}{100}\\\\[/tex]

[tex]side = \sqrt{\frac{49}{100}}=\sqrt{\frac{7*7}{10*10}}\\\\sides=\frac{7}{10}=0.7[/tex]

Answer:

17m - 4

Step-by-step explanation:

12m - (4 + 5m)

take the parentheses away

12m - 4 + 5m

12m + 5m = 17m

17m - 4

Answer:

7m-4

Step-by-step explanation:

12m - 4 - 5m   (Distribute the negative)

7m - 4  (Subtract the m values and you got the answer)

Answer:

8=117     7=63      9=63

Step-by-step explanation:

180-117 = 63

7 and 9 = 63

A straight line=180

Angles across from each other are the same

9 and 7 are the same, and 117 degrees and 8 are the same

Answer:

798

Step-by-step explanation:

So, 21*{2*18 + (21-1)*2}/2

= 21*{36 + 20*2}/2

= 21*{36+40}/2

= 21*76/2

= 1596/2

= 798

Total number of seats is 798

Number of seats in first row = 18

Number of rows = 21

Each row added number of seats then previous = 2

Total number of seats

Total number of seats = Sn = (n/2)[2a + (n-1)d]

Total number of seats = Sn = (21/2)[2(18) + (21-1)2]

Total number of seats = (21/2)[36 + (20)2]

Total number of seats = (21/2)[36 + 40]

Total number of seats = (21/2)[76]

Total number of seats = (21)(38)

Total number of seats = 798

https://brainly.com/question/16668552?referrer=searchResults

Answer:

$825869.52

Step-by-step explanation:

Given that,

Width of the rectangle, b = 42 ft

Length of the rectangle, l = 25.5 ft

The area of a rectangle is given by :

A = lb

So,

A = 42 ft × 25.5 ft

A = 1071 ft²

The total cost of the wallpaper was $771.12 . So,

Cost = 1071 × 771.12

= $825869.52

So, the cost of wallpaper per square foot is equal to $825869.52.

Answer:

A. y= - 1/2x + 20

B. the initial value represents the total amount of gasoline used for snow plowing (in gallons)

C. the slope indicates that for every driveway plowed they use 1/2 a gallon of gasoline

hope this helps ;)

Answer:

$7.07

Step-by-step explanation:

35.35/5=7.07

Answer:

-8

Step-by-step explanation:

-8 also = -8/1, which you would use as your slope on a graph.

The Y intercept would then be (0,9)

Answer:

-8

Step-by-step explanation:

Answer:

x+4/x+1

Step-by-step explanation:

hope this can help you :)

Answer:

[tex]\frac{x+4}{x+1}[/tex]

Step-by-step explanation:

Given

[tex]\frac{x^2-16}{x^2-3x-4}[/tex] ← factor numerator/ denominator

= [tex]\frac{(x-4)(x+4)}{(x-4)(x+1)}[/tex] ← cancel the factor (x - 4) on numerator/ denominator

= [tex]\frac{x+4}{x+1}[/tex]

Answer:

c

Step-by-step explanation:

Here

cos25°=BC/AB=8/c

c=8/cos25°

so cos function is helpful here

really a dum.beannie

Answer:

b) cos25

c = 7.248 or 7.2

Step-by-step explanation:

Cosine = [tex]\frac{adjacent}{hypothenuse}[/tex]

Cos 25 = [tex]\frac{8}{c}[/tex]

Cos of 25 is 0.906

0.906 = [tex]\frac{8}{c}[/tex]

Multiply 8 on both sides:

0.906 x 8 = [tex]\frac{8}{c}[/tex] x 8

7.248 = c

Answer: El dominio es el conjunto de números reales. En forma de intervalo, el dominio de f es (−∞, ∞). Identifica los valores de entrada. / The domain is the set of real numbers. In interval form, the domain of f is (−∞,∞). Identify the input values.

Step-by-step explanation: Used my sheet.

Answer:

20 years

Step-by-step explanation:

A=500(1+.03)^20

$903

A=100(1+.12)^20

$964

It took her 20 years to overtake.

Answer:

Step-by-step explanation:

Jack

Yearly interest = 0.03*500 = $15

Diane

Yearly interest = 0.12*100 = $12

Diane's initial amount and yearly interest amount are both less than of Jack's.

It means her balance will never overtake Jack's.

=======================

It is not mentioned in the question but let's assume it is compound interest which is annually compounded.

Then after x years their balance will be:

Jack

Diane

Solve inequality below:

Answer:

1.8 is the h of the rhombus

Answer:

4.8 cm

Step-by-step explanation:

Answer:

2) Gain

3) 0.39 (rounded)

Step-by-step explanation:

2)

12.16/64= 0.19

21/100= .21

12.24/72= 0.17

3)

9.25/24= .3854

if they tell you to round it, its .39, if not its .38