Help please ASAP will mark brainliest!!!!

Answer:

{3, 3, 6, 7, 9}

Answer:

In the account that paid 3% Ramon put $800

In the account that paid 6% Ramon put $1,600

Step-by-step explanation:

Answer:

x+y= 9700 & 0.06x + 0.04y=466

Step-by-step explanation:

let X & Y be each account.  Together, they are $9,700.

So, x+y=9700

thus, account 1 (x) earns 6 %. which converted to decimal is 0.06

account 2 (y) earns 4 % which converted is 0.04

It also said that both accounts were $466, after 1 year.

0.06x+0.04y=466

Answer:

Should be 3, cause the (+9) is a constant, and the (-m) is a variable.

Step-by-step explanation:

\(2\cdot20\text{ m}\cdot n+2\cdot20\text{ m}\cdot 5\text{ m}+2\cdot 5\text{ m}\cdot n=1100\text{ m}^2\\40n\text{ m}+200\text{ m}^2+10n\text{ m}=1100\text{ m}^2\\50n\text{ m}=900\text{ m}^2\\n=18\text{ m}\)

Answer:

5 and 5

Step-by-step explanation:

Pentagon has 5 rotational and reflectional symmetries. Hope this helps. :'-)

You can use the fact that there are 5 vertex and all sides are congruent.

The completed statement would look like:

When rotated about its center, a regular pentagon has _5_ rotational symmetries. In addition to rotational symmetry, a regular pentagon has _5_ lines of reflectional symmetry

A regular pentagon is a regular polygon with number of sides = 5.

When a figure is rotated by some angle from some fixed point in the figure, if the figure ends up with exact same shape(congruent), then that figure has rotational symmetry for that angle with respect to that fixed point.

If we reflect the figure with respect to a fixed line, then if the figure is same as previous, then that figure is said to have reflectional symmetry.

Since the considered pentagon can be rotated to bring any of the 5 vertex on top and still looking same due to pentagon being regular, we have 5 rotational symmetries for regular pentagon.

Since we can drop perpendicular from one vertex to its opposite side and get a reflectional symmetry along that perpendicular, and since there are 5 vertices, thus there are 5 reflectional symmetry as there are no other line except the line that will lie in the mid of the pentagon from vertex to the mid of the opposite side as there will be bias, which will break the congruency of the reflected figure.

The pentagon with its reflection axis (5) are plotted in below attached graph.

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The main values in order to find the surface are the width and the length, therefore, the surface will be the product between them

Because the box cover from a gift box depends on the width and length, the surface area is 1350cm^2.

Answer:

\(60a^{2} b^{4} c\)

Step-by-step explanation:

just multiply first paranthesis with second one. They are each 1 unit as there are no addition or subtraction inside the parantehsis so DON'T distribute. It's more simple.

(12ab^4c)*(5a)

now multiply these 2 paranthesis, again just 2 units to multiple.

60a^2b^4c

Answer:

wont let me download

Step-by-step explanation:

Answer:

\(Solution,\\Let~a=10in.,~b=24in.~and~c=26in.\\Semiperimeter(s) = \frac{a+b+c}{2}= \frac{10+24+26}{2} = 30in.\\Now,\\Area~of~triangle = \sqrt{s(s-a)(s-b)(s-c)} \\~~~~~~~~~~~~~~~~~~~~~~~~=\sqrt{30(30-10)(30-24)(30-26)} \\~~~~~~~~~~~~~~~~~~~~~~~~=\sqrt{30(20)(6)(4)} = \sqrt{14400}=120sq.inches\)

Let's assume David's average speed is S km/h.

A) To find David's average speed, we can use the formula: Speed = Distance / Time.

David completed the race in 5 hours, so his speed is S km/h. Therefore, we have:

S = Distance / 5

B) Ken's average speed is 9.8 km/h less than David's average speed, which means Ken's average speed is (S - 9.8) km/h.

Ken took 7 hours to complete the race, so we have:

S - 9.8 = Distance / 7

Now, we can solve the system of equations to find the values of S and Distance.

From equation (1): S = Distance / 5

Substitute this into equation (2):

Distance / 5 - 9.8 = Distance / 7

Multiply both sides of the equation by 35 to eliminate the denominators:

7 * Distance - 35 * 9.8 = 5 * Distance

7 * Distance - 343 = 5 * Distance

Subtract 5 * Distance from both sides:

2 * Distance - 343 = 0

Add 343 to both sides:

2 * Distance = 343

Divide both sides by 2:

Distance = 343 / 2 = 171.5 km

Therefore, the distance of the cycling race is 171.5 kilometers.

To find David's average speed, substitute the distance into equation (1):

S = Distance / 5 = 171.5 / 5 = 34.3 km/h

So, David's average speed was 34.3 km/h.\(\)

Answer:

A) 34.3 km/h

B) 171.5 km

Step-by-step explanation:

Since Ken's average speed is said to be 9.8km/h less than David's average speed, and we know that Ken's average speed is dependent on him traveling for 7 hours, then we have our equation to get the distance of the cycling race:

\(\text{Ken's Avg. Speed}=\text{David's Avg. Speed}\,-\,9.8\\\\\frac{\text{Distance}}{7}=\frac{\text{Distance}}{5}-9.8\\\\\frac{5(\text{Distance})}{7}=\text{Distance}-49\\\\5(\text{Distance})=7(\text{Distance})-343\\\\-2(\text{Distance})=-343\\\\\text{Distance}=171.5\text{ km}\)

This distance for the cycling race can now be used to determine David's average speed:

\(\text{David's Avg. Speed}=\frac{\text{Distance}}{5}=\frac{171.5}{5}=34.3\text{ km/h}\)

Therefore, David's average speed was 34.3 km/h and the distance of the cycling race was 171.5 km.

Answer:

6*

Step-by-step explanation:

The time difference is 4 hours, (since 8am +4 = 12pm), and the temperature change is 6* because -2*+6*=4*.

Answer:

-32

Step-by-step explanation:

Once simplified, this is the answer you are left with :)

The system of equations has its solution to be x₁ = 2, x₂ = 0 and x₃ = -1

From the question, we have the following parameters that can be used in our computation:

2x-x₂ +2x3=2

X₁ + 10x₂ - 3x3=5

-x₁ + x₂ + x3 = -3

Express properly

So, we have

2x₁ - x₂ + 2x₃ = 2

x₁ + 10x₂ - 3x₃ = 5

-x₁ + x₂ + x₃ = -3

Multiply (3) and (2) by 2

-2x₁ + 2x₂ + 2x₃ = -6 --- (4)

2x₁ + 20x₂ - 6x₃ = 10 ---- (5)

Add to (1) & (4)

x₂ + 4x₃ = -4

Subtract (5) from (1)

-21x₂ + 8x₃ = -8

So, we have

-21x₂ + 8x₃ = -8

2(x₂ + 4x₃ = -4)

Subtract

-23x₂ = 0

Evaluate

x₂ = 0

This gives

2x₁  + 2x₃ = 2

x₁ - 3x₃ = 5

-x₁ + x₃ = -3

Add (2) and (3)

-2x₃ = 2

Evaluate

x₃ = -1

Solving x₁, we have

2x₁  + 2(-1) = 2

2x₁  - 2 = 2

2x₁ = 4

Evaluate

x₁ = 2

Hence, the solutions are x₁ = 2, x₂ = 0 and x₃ = -1

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Answer: y-8=8/9(x-9)

Step-by-step explanation:

If it is parallel line that means that their gradient must be the same.

Point slope formula: y - y1 = m (x - x1)

m= gradient

y1 = y point

x1 = x point

y-8=8/9(x-9)

Answer:

-2

Step-by-step explanation:

Answer:

18 , 34and 50 are multiples of 2

Step-by-step explanation:

2×9=18

17×2=34

25×2=50

Answer:

A,C,E

Step-by-step explanation:

A,9×2=18

C,17×2=34

E,25×2=50

Answer:

D

|–5 – 7| = |–12| = 12°F

Step-by-step explanation: -5 + 12= 7 which was the final temperture

Answer:

yea its D gangy

Step-by-step explanation:

Answer: ∠6, ∠8

Step-by-step explanation:

∠2 ≅ ∠6 because they are corresponding angles of parallel lines cut by a transversal. ∠5 ≅ ∠8 by the Vertical Angles Theorem.

Answer: See below

Step-by-step explanation:

A) \(-x+2y < -4\)

\(-x+2y-2y < -4-2y\)

\(-x < -4-2y\)

Multiply both sides by -1 and reverse the inequality:

\(\left(-x\right)\left(-1\right) > -4\left(-1\right)-2y\left(-1\right)\)

\(x > 4+2y\)

B) \(2x+3y > 6\)

\(2x+3y-3y > 6-3y\)

\(2x > 6-3y\)

\(\frac{2x}{2} > \frac{6}{2}-\frac{3y}{2}\)

\(x > \frac{6-3y}{2}\\x > 3-\frac{3y}{2}\)

First of all, you need to find the slopes of each. To do this, we need to take 2 points from each and plug them into y2 -y1/ x2 - x1.

For the graph we will take the points given (0,5) (4,0)

0 - 5 / 4 -0  = -5/4 = your slope for the graph

For the table, we will take the first three points. (-1,-1) (0,3) (1,7)

7 - 3 / 1 - 0  = 4 / 1 = 4

3 - - 1 / 0 - - 1 =  4 / 1  = 4

Therefore, the slope of the table is 4.

Now, for the y-intercepts.

These are normal be the points (0, y)

For the graph this would be (0,5) and for the table it would be (0,3)

Slope - intercept form = y = mx + b, where m is the slope and b is the y-intercept form.

Soo,

For the graph, it would be;

Y = -5/4x + 5

And for the table, it would be;

Y = 4x + 3

The best i could find out is 450p

Answer:

4 friends

Explanation:

One time processing fee =$3

Cost per ticket = $8

Let the number of tickets = t

The total amount spent for t tickets will be:

Since the most you can spend is $45, we have:

You can invite a total of 4 friends (excluding yourself)

This means you can buy a maximum of 5 tickets.

Answer:

,jzdj ,z mcjdjccbjbzn

Step-by-step explanation:

Answer: 22 minutes

Step-by-step explanation: m + 2m + m + 7 = 4m + 7

4m + 7 = 50

4m = 44

m = 11

2m = 11 x 2 = 22 minutes

The additional piece of information needed to prove that ΔLKN ~ ΔKNM by the SAS similarity theorem is; MN/LK||MN.

The SAS (Side-Angle-Side) similarity theorem states that if two triangles have two pairs of corresponding sides that are in proportion, and the included angles are congruent, then the triangles are similar.

In this case, we are given that ΔLKN and ΔKNM share the angle at vertex K, and we know that LN/MN and LK/KN are in proportion.

However, we need to establish that MN/LK||MN, that means MN is parallel to LK and forms a transversal with LN.

This information is necessary to establish that the included corresponding sides are congruent, which is required for the triangles to be similar.

Therefore, the additional piece of information needed to prove that ΔLKN ~ ΔKNM by the SAS similarity theorem.

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Answer: Paco bought 7 markers and 8 pencils.

Step-by-step explanation:

Let's define the variables:

P = number of pencils that Paco bought

M = number of markers that Paco bought.

We know that P + M  = 15.

We also know that each pencil costs $0.30 and each marker costs $1.25, and the total price for the whole purchase is $11.15

Then:

P*$0.30 + M*$1.25 = $11.15

Then we have the system of equations:

P + M  = 15

P*$0.30 + M*$1.25 = $11.15

To solve this, we can start by isolating one of the variables in the first equation, let's isolate P.

P = 15 - M

Now we can replace this in the second equation to get:

(15 - M)*$0.30 + M*$1.25 = $11.15

$4.50 - M*$0.30 + M*$1.25 = $11.15

$4.50 + M*$0.95 = $11.15

M*$0.95 = $11.15 - $4.50 = $6.65

M = $6.65/$0.95 = 7

Then paco bough 7 markers, and we can find the number of pencisl by the equation:

P + M = 15

P = 15 - M = 15 - 7 = 8

Then Paco bought 7 markers and 8 pencils.

Answer:

27

Step-by-step explanation:

FE is tangent to the circle with center D at point E and DE is radius.

\( \therefore FE \perp DE \implies m\angle FED = 90\degree \)

DE = x

DF = x + 18

FE = 36

By Pythagoras theorem:

\( DF^2 = DE^2 + FE^2 \)

\( (x+18)^2 = x^2 + 36^2 \)

\( x^2 + 36x + 324= x^2 + 1296\)

\( 36x + 324= 1296\)

\( 36x = 1296-324\)

\( 36x = 972\)

\( x = \frac{972}{36}\)

\( x =27\)

The value of x from the given figure, which is radius of a circle is 27 units.

From the given figure, FE=36 units, DE=x units and FD=x+18 units.

Tangent and radius of a circle meet at 90°. If we draw a radius that meets the circumference at the same point, the angle between the radius and the tangent will always be exactly 90°.

Using Pythagoras theorem, we have

FD²=FE²+DE²

⇒ (x+18)²=36²+x²

⇒ x²+36x+324=1296+x²

⇒ 36x=1296-324

⇒ 36x=972

⇒ x=972/36

⇒ x=27 units

Hence, the value of x from the given figure, which is radius of a circle is 27 units.

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The cost of each sandwich, given the number that was sold and the profit made was  $15.

Let S be the price of a sandwich and A be the price of a salad.

From the lunch sale, we know:

14 S + 14 A = $280

From the evening sale, we know:

42S + 154 A = $ 1400

Simplify the first equation by dividing through by 14:

S + A = $20

Solving this equation for S gives:

S = $20 - A

Substitute this equation into the second equation:

42 ( $20 - A ) + 154 A = $1400

$ 840 - 42 A + 154 A = $1400

112A = $560

A = $5

Substitute A = $5 into the first equation:

S + $5 = $20

S = $15

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The graph of the linear equation, x = 6, is shown in the image attached below.

The equation of a vertical line is given as x = b, where b is the x-intercept of the line. That is, b is the point on the x-axis where the line crosses.

Given the equation, x = 6, it means the line is a vertical line. Therefore, on the graph, the line would intercept the the x-axis at 6.

Thus, the graph of the linear equation, x = 6, is shown in the image attached below.

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