(For both) I will give brainliest

Answer:

A single cheeseburger order cost $1.23

A single fries order cost $1.28

Step-by-step explanation:

Let the cost of cheeseburgers be c and the cost of fries be f

Mathematically;

4c + 3f = 10.75 ••••(i)

Secondly;

5c + 2f = 11.2 ••••(ii)

We have two equations to solve simultaneously;

Multiply i by 2 and ii by 3

8c + 6f = 21.5

15c + 6f = 33.6

Subtract ii from i

-7c = -12.1

c = 1.73

Recall;

5c + 2f = 11.2

5(1.73) + 2f = 11.2

2f = 11.2-8.65

2f = 2.55

f = 2.55/2

f = 1.28

Answer:

p>5

Step-by-step explanation:

Answer:

Yes, Tyler is right.

Step-by-step explanation:

Given that:

Length of wooden post = 3.5 feets

Position of tick mark = 1 1/3 inch apart

3.5 feets to inches

3.5 * 12 = 42 inches

Tick mark placed at 1 1/3 inch apart :

Number of tick parks made = 20

Total inches marked = (1 1/3 * 20) = (4/3 * 20) = 26.667 inches marked

Inches leg unmarked : 42 - 26.667 = 15.333333 inches

Hence, Tyler is correct.

Answer:

Rs. 2970 is the interest

Step-by-step explanation:

30 months is same as 30/12 = 2.5 months

I = PRT/100

P is 18000

R is 6.6%

T is 2.5 years

Substitute all these

I = (18,000 * 2.5 * 6.6)/100

= 2970

Greetings again.

The answer is (3,5)

Explanation:

Other previous questions about the System of Two Variables Linear Equations. Previous questions, both y-terms have the same absolute-values but different operator/sign. Some questions previously have same operators as we multiply one of the equation by -1 to eliminate.

But this question, there are no terms that are same. Especially not the same looking value.

And what do we do if it's like this?

The answer is, do something to make both equations have same absolute value but different operators.

That is to multiply. For this question, I'll be eliminating x-term. So I'll multiply both equations to make the x-term have same absolute-value and different operator.

Because 2 and 3 can multiply into 6. Therefore, multiply the whole first equation by 3 and multiply the whole second equation by 2.

[tex]\left \{ {{2x+5y=31} \atop {3x-2y=-1}} \right. \\\left \{ {{2x(3)+5y(3)=31(3)} \atop {3x(2)-2y(2)=-1(2)}} \right. \\\left \{ {{6x+15y=93} \atop {6x-4y=-2}} \right.[/tex]

This is our new equations. Since we need to eliminate x-term. We multiply one of the equation by -1. I'll choose the second equation to multiply.

[tex]6x(-1)-4y(-1)=-2(-1)\\-6x+4y=2[/tex]

[tex]\left \{ {{6x+15y=93} \atop {-6x+4y=2}} \right.[/tex]

Then proceed with add/subtract vertically

6x-6x = 0

15y+4y = 19y

93+2 = 95

Therefore, we get 19y = 95

[tex]19y=95\\y=\frac{95}{19} \\y=5[/tex]

Our y-value is 5. However, we are not done yet. Since this is the System of Two Variables Linear Equation. We need to find the x-value too to express in ordered pairs. (x,y)

Choose any given equations to substitute y = 5 in. I'll substitute y = 5 in 3x-2y=-1

[tex]3x-2y=-1[/tex]

Substitute y = 5 in the equation.

[tex]3x-2(5)=-1\\3x-10=-1\\3x=-1+10\\3x=9\\x=3[/tex]

Thus, when y = 5, x = 3 or when x = 3, y = 5. As the ordered pairs = (x,y) Therefore, the answer is (3,5)

Answer:

(3, 5)

Step-by-step explanation:

Since none of the x y coeficcints are the same, we need to multiply entire equations

3(2x+5y=31)=6x+15y=93

2(3x-2y=-1)=6x-4y=-2

Now we have the same x coeficcionts!

(6x+15y=93)-(6x-4y=-2)=19y=95

we then divide 19 on both sides to get:

y=5

Now we know what y is,  we'll need to plug 5 in for y in the second equation.

3x-2(5)=-1

3x-10=-1

3x=9

x=3

Answer:

y-intercept = 3

Step-by-step explanation:

The given equation is :

6x-5y=-15

We can rewrite it ib slope-intercept form as follows :

Dividing both sides by 5

[tex]\dfrac{6x}{5}-y=\dfrac{-15}{5}\\\\\dfrac{6x}{5}-y=-3\\\\\dfrac{6x}{5}+3=y[/tex] .....(1)

The general equation of slope-intercept form is:

y = mx +c  ....(2)

On comparing equation (1) and (2) we get :

m = 6/5

c = 3

Hence, the y intercept of the graph of the equation is 3.

Answer:

x = 4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define equation

2(5x + 6) = 4(2x + 5)

Step 2: Solve for x

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Here we see that 52 does indeed equal 52.

∴ x = 4 is a solution of the equation.

Answer:

$7.83

Step-by-step explanation:

Answer:

7.83

Step-by-step explanation:

611 ÷ 78 = 7.83

Answer:

p = - 5, p = - 1

Step-by-step explanation:

Given

[tex]\frac{3p}{p-5}[/tex] - [tex]\frac{2}{p+3}[/tex] = [tex]\frac{p}{p+3}[/tex]

Multiply through by the LCM of (p - 5)(p + 3)

3p(p + 3) - 2(p - 5) = p(p - 5) ← distribute parenthesis

3p² + 9p - 2p + 10 = p² - 5p

3p² + 7p + 10 = p² - 5p ( subtract p² - 5p from both sides )

2p² + 12p + 10 = 0 ← divide through by 2

p² + 6p + 5 = 0 ← in standard form

(p + 1)(p + 5) = 0 ← in factored form

Equate each factor to zero and solve for p

p + 1 = 0 ⇒ p = - 1

p + 5 = 0 ⇒ p = - 5

Answer:

Step 2 is incoreect.

Step-by-step explanation:

Cost of Naty's dress = $24.95

Cost of Naty's skirt = $14.95

The sales clerk said the total cost including 9.5% sale tax was $49.40.

Step 1 is correct i.e. 24.95 + 14.95 = 39.90

In step 2, he added 39.90 and 9.5. This is the wrong step. He directly added 9.5 but he have to add 9.5% i.e. 0.095.

Cost = 39.90 + 0.095

C = $39.995

Step 2 is incorrect.

Step-by-step explanation:

x³ + 10x² + 25x

= x(x² + 10x + 25)

= x(x + 5)².

Answer:

rounded, its about $2.71

Step-by-step explanation:

Answer:

she can hand out 32 cups

Step-by-step explanation:

Answer:

Please check the explanation.

Step-by-step explanation:

We know that for positive integers to be Pythagorean triples, they must have to work and satisfy the Pythagorean Theorem's formula:

a² + b² = c²

Here,

a and b are the sides or legs of a right triangle

c is the hypotenuse

Let us check now:

A) 3, 4, 5

a = 3, b = 4, c = 5

a² + b² = c²

3² + 4² = 5²

9 + 16 = 25

25 = 25

TRUE

Thus, we conclude that (3, 4, 5) makes a right triangle.

B) 8, 15, 17

a = 8, b = 15, c = 17

a² + b² = c²

8² + 15² = 17²

64 + 225 = 289

289 = 289

TRUE

Thus, we conclude that (8, 15, 17) makes a right triangle.

C) 6, 8, 10

a = 6, b = 8, c = 10

a² + b² = c²

6² + 8² = 10²

36 + 64 = 100

100 = 100

TRUE

Thus, we conclude that (6, 8, 10) makes a right triangle.

D) 5, 12, 13

a = 5, b = 12, c = 13

a² + b² = c²

5² + 12² = 13²

25 + 144 = 169

169 = 169

TRUE

Thus, we conclude that (5, 12, 13) makes a right triangle.

E) 7, 8, 9

a = 7, b = 8, c = 9

a² + b² = c²

7² + 8² = 9²

49 + 64 = 81

113 = 81

FALSE       ∵ 113 ≠ 81

Thus, we conclude that (7, 8, 9) does not make a right triangle.

E) 7, 20, 21

a = 7, b = 20, c = 21

a² + b² = c²

7² + 20² = 21²

49 + 400 = 441

449 = 441

FALSE       ∵ 449 ≠ 441

Thus, we conclude that (7, 20, 21) does not make a right triangle.

G) 10, 11, √221

a = 10, b = 11, c = √221

a² + b² = c²

10² + 11² = (√221)²

100 + 121 = 221

221 = 221

TRUE

Thus, we conclude that (10, 11, √221) makes a right triangle.

H) 5, 8, √80

a = 5, b = 8, c = √80

a² + b² = c²

5² + 8² = (√80)²

25 + 64 = 80

89 = 80

FALSE       ∵ 89 ≠ 80

Thus, we conclude that (5, 8, √80) does not make a right triangle.

Answer:

infinite

Step-by-step explanation:

any value of x will work, since x is always equal to itself.

Answer:

its 1.8

Step-by-step explanation:

Answer:

answer is 1271.1 inches

plz mark my answer as brainlist and plzzzz also vote me plz

Answer:

Adjacent

Step-by-step explanation:

-10x+28

first you must distribute -3

then you combine like terms and you end up with -10×+28

Answer:

189.6

Step-by-step explanation:

790*4=3160*6%

Answer:

point a is (1,4)

b is (3,2)

c is (7,3)

d is (4,9)

e is (9,7)

Step-by-step explanation:

Answer:

0

Step-by-step explanation:

5-5=0

I hope this is correct and have a great day

Answer:

The number of links in a chain

Step-by-step explanation:

An independent variable is any variable whose value or identity does not in any way affect the event of another variable in the system. A dependent variable is a variable whose value or identity depends on one or more variables in the system.

From the information given:

The length of the chain is an independent variable while the number of links that depends on the length of the chain is the dependent variable.

Answer:

s = 4w+56

Step-by-step explanation:

$4 per week so 4w

56 Francisco already had so its at the end

Answer: x = 3.94

Step-by-step explanation:

Answer:

33.25

Step-by-step explanation:

29.75 divided by 0.85 = 35

35 x 0.95 = 33.25

Hope this helps!

Answer:

33.25

Step-by-step explanation:

the person that answered this before was correct

Answer:

I can`t really see the question that well, but if I understand correctly here`s the first few.

1. Subtraction

2. Addition

3. Addition

4. Subtraction

5. Addition

6. Subtraction

It looks like its asking what is happening in those situations (is the number being added or subtracted). Sorry if that`s not much help