5. The temperature is 8 degrees. It is expected to fall 5 degrees each hour for the next
several hours. In how many hours will the temperature be-7
degrees?

Answer:

24 years

Step-by-step explanation:

First, I will set up an equation.

2(9 + x) = 42 + x

18 + 2x = 42 + x

x = 24

9 + 24 = 33

42 + 24 = 66

66 is 2 times 33.

From the given dimensions, of MI, IN, NT, TM, and MN, the quadrilateral

MINT can be drawn as shown in the attached image.

The given dimensions of the quadrilateral MINT are;

MI = 5 cm

IN = 6 cm

NT = 7 cm

TM = 3 cm

MN = 9 cm

The side MN is a diagonal of MINT, therefore;

ΔMIN, and ΔMTN are triangles with a common base = MN

The steps to construct MINT are therefore;

Please find attached the drawing (showing the construction arcs) of the

quadrilateral MINT created with MS Word.

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Answer:

Step-by-step explanation:

The ratio= 1:4

The investment of the kelly at the end of 8 years is $7393.78.

It is given that

The principle P= $5000

rate of interest R=4.9%

The rate is compounded monthly so

[tex]CI=P(1+\dfrac{R}{12}^{12t} )[/tex]

By putting the value

[tex]CI= 5000\times (1+\dfrac{0.049}{12}^{12\times8} )[/tex]

[tex]CI=7393.78[/tex]

Thus the investment of the kelly at the end of 8 years is $7393.78.

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Answer: $54.40

Step-by-step explanation: 37.5%-5.5% = 32% off $80-32% = $54.40

Answer: 105 miles

Step-by-step explanation:

You can write an equation for this problem and solve it.

32 miles=1/3x-3, where x is equal to the total length of the highway.

35=1/3x, and then you multiply by 3, to get x=105

Answer:

194

Step-by-step explanation:

you would do 340 divided by 2 and that gets you 170 then you would subtract 24 from Rita and that is 146 so Rita drove 146 miles. then for Joel you add 170 +24 = 194. So Joel drove 194 miles.

Answer:

Sam would make about 13,440 per year.

His pay check would be deducted over 93% which is 12,406 spent on bills, and about $90 left to spend on whatever he wants.

The demonstration of the equation is an illustration of probability

The complete demonstration of the equation is:

3/52 = 3/13 * 13/52

In a standard deck, we have the following parameters:

Event A = Face card = 12

Event B =  Spade =13

Number of cards = 52

So, the probability that a card is a spade and a face card is:

P(A and B) = P(A) * P(B)

This gives

P(A and B) = 12/52 * 13/52

Simplify

P(A and B) = 3/13 * 13/52

Further simplify

P(A and B) = 3/1 * 1/52

Multiply

P(A and B) = 3/52

So, the complete demonstration of the equation is:

3/52 = 3/13 * 13/52

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Answer:

8) width = 30 cm

   length = 60 cm

9) first side = 60 m

   second side = 180 m

   third side = 240 m

Step-by-step explanation:

Question 8

Let W = width

Given:

⇒ Length = 3W - 30

Given:

Perimeter of a rectangle = 2W + 2L

(where W is the width and L is the length)

Substituting equation for length into the equation for the perimeter and solving for W:

   Perimeter = 2W + 2L

⇒ 180 = 2W + 2(3W - 30)

⇒ 180 = 2W + 6W - 60

⇒ 240 = 8W

⇒ W = 30 cm

Substitute found value of W into the equation for length and solve for length:

⇒ Length = 3(30) - 30

⇒ Length = 90 - 30

⇒ Length = 60 cm

Question 9

Given:

Let x = first side

⇒ second side = 3x

⇒ third side = 3x + 60

Given:

   Perimeter = sum of length of all sides

⇒ 480 = x + 3x + 3x + 60

⇒ 420 = 7x

⇒ x = 60

Therefore,

first side = 60 m

second side = 3 × 60 = 180 m

third side = 3(60) + 60 = 240 m

width be x

length=3x-30

Now

#2

sides be x,3x,3x+60

Now

Hence

Answer:

[tex]\tt x=32.8[/tex]

Step-by-step explanation:

Given: Figare

Find: x

~

Answer:

(69/40 , 7/11)

Step-by-step explanation:

multiply the bottom equation by 2

-4x + 8y = 12

4x+3y=-5

cancel out both 4x

8y+3y=11y

12+ -5 = 7

11y=7

divide both sides by 11

y=7/11

substitute that in for y

4x + 3(7/11) = -5

4x + 21/11 = -5

4x = -69/10

x= 69/40

Answer:

Step-by-step explanation:

There's no such thing as answer for this, as this is an algebraic expression.

A perfect square is an expression that factors into two other expressions that are identical.  The equation that represents this model is (2x)²=4x².

A perfect square is an expression that factors into two other expressions that are identical. A monomial is a single phrase made up of a product of constants, variables, and their positive integer powers. As a result, a perfect square monomial is a monomial that factors into two monomials that are identical.

As given to us that the first row consists of tile 2x², and the second row also consists of tile 2x². Thus, the expression can be written as,

[tex]2x^2+2x^2\\\\=(2x)^2=4x^2[/tex]

Hence, the equation that represents this model is (2x)²=4x².

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Answer:

A

Step-by-step explanation:

2022

Answer:

1: 5/20 2: 1 2/20

Step-by-step explanation:

multiply ti to get 20 and multiply the numerator with it

Answer:

angle 2 is 85

Step-by-step explanation:

since its facing the 85

Answer:

Answer:1 is 95°

2 is 85°

3 is 95°

Step-by-step explanations

opposite angles are equal so 2 is 85° 95°Step-by-step explanation:directly opposite angles are equal so 2 is 85angles on a straight line add up to 180°

Answer:1 is 95°2 is 85°3 is 95°Step-by-step explanation:directly opposite angles are equal so 2 is 85angles on a straight line add up to 180° so 3 is 180-85=95°

Answer:1 is 95°2 is 85°3 is 95°Step-by-step explanation:directly opposite angles are equal so 2 is 85angles on a straight line add up to 180° so 3 is 180-85=95°then 3 is directly opposite to 1 so both are 95

Answer:1 is 95°2 is 85°3 is 95°Step-by-step explanation:directly opposite angles are equal so 2 is 85angles on a straight line add up to 180° so 3 is 180-85=95°then 3 is directly opposite to 1 so both are 95 I hope you're helped?

Step-by-step explanation:

X = 3

-14x=-42

-3/5 + x=12/5

X-5=-2

X/4=6/8

X= -3

-6+x=-9

X/3=9

Answer:

$66.50

Step-by-step explanation:

Given Us that:

⇒ Video game: $70 Sale: 5% off

To Find:

What is the new cost of the video game?

Note:

Off ⇒ Discount ⇒ decrease ⇒ subtract

5% = 0.05

Solve:

⇒ $70 × 0.05 = 3.50

⇒ $70 - 3.50 = 66.50

Hence, New cost of the video games → $66.50

~Learn with Lenvy~

Answer:

x=8 or -8

Step-by-step explanation:

64 squared = 8 or -8

8x8=64

-8x-8 = 64

Answer:

Take the root of both sides and solve.

x=8,−8

Step-by-step explanation:

Answer:

??????????

Step-by-step explanation:

Answer:

13

Step-by-step explanation:

For this problem, work backwards to determine what the starting number was. Take 3.5 and multiply it by 3 to get 10.5, then subtract 4 to get 6.5. Finally, multiply 6.5 by 2 to get the starting number, which is 13. To check your work, you can always take 13 and perform the operations to make sure you end up with 3.5.

Hopefully this helps- let me know if you have any questions!

Antonio’s total lifetime cost will be $11680.99 after calculating all loans

Given that

Loan Amount ($)

5,894$

5,258$

Interest Rate (%)

6.9%

7.5%

Now for the loan amount 5,894$ at 6.9% interest, the amount will be

[tex]A=P(1+\dfrac{r}{h} )^{n\times t}[/tex]

[tex]A=5894(1+\dfrac{0.069}{12} )^{12\times 10}[/tex]

[tex]A=5894\times(1.00575)x^{120} =11727.76[/tex]

Now for the loan amount 5.258$ at 7.5% interest, the amount will be

[tex]A=5258(1+\dfrac{0.075}{12} )^{12\times 10}[/tex]

[tex]A=5258\times2.1120=111105.23[/tex]

So the total lifetime cost will be

[tex]=11727.76-5894+111105.23-5258=11680.99[/tex]

Thus Antonio’s total lifetime cost will be $11680.99 after calculating all loans

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Answer:

a. $16,246.80

Step-by-step explanation:

EDGE

Answer:

Your given polynomial has only one real root which is x= -4

Step-by-step explanation:

find any zero of the polynomial.

x-a divides the polynomial where a is a zero of polynomial:

So x+4 divides [tex]2x^{3} +2x^{2} -19x+20[/tex]

If we factor out a two, we can use the quadratic formula.

2(x^2-3x+2.5) so we have x = (-(-3)+/-(9-4*1*2.5)^(1/2))/2*1)=(3+i) or (3-i)/2 .

Final answer:

[tex]2x^{3} +2x^{2} -19x+20=0[/tex]

then x=-4, (3+i)/2, or (3-i)/2

Graph attached

Zeros are the x intercepts

Answer:

x = {-3, -2.5}

Step-by-step explanation:

Simplifying

3 + x = 0

Solving

3 + x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-3' to each side of the equation.

3 + -3 + x = 0 + -3

Combine like terms: 3 + -3 = 0

0 + x = 0 + -3

x = 0 + -3

Combine like terms: 0 + -3 = -3

x = -3

Simplifying

x = -3

Simplifying

5 + 2x = 0

Solving

5 + 2x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-5' to each side of the equation.

5 + -5 + 2x = 0 + -5

Combine like terms: 5 + -5 = 0

0 + 2x = 0 + -5

2x = 0 + -5

Combine like terms: 0 + -5 = -5

2x = -5

Divide each side by '2'.

x = -2.5

Simplifying

x = -2.5

Answer:  11

Step-by-step explanation:

Answer:

Vol = 75.36 in^3

Step-by-step explanation:

A can is a cylinder. The volume of a cylinder is:

V = pi•r^2•h

Your radius is 2 inches. And height given is 6 inches.

V = pi•2^2 •6

V = (3.14)4(6)

V ~= 75.36 cubic inches

If you need a different unit like ml or oz. please comment, will edit.

Hope this helps!

Mark me the Brainliest! tysm!

Answer:

b is my answer and that's it

Answer:

C.)The difference between the mean heights is approximately 3 times the MAD of the data sets.

Step-by-step explanation:

just took it on edge