Substitute and solve; 7(5f - 3n) -8 when n = 3 and f = 7

Answer:

23.9

Step-by-step explanation:

it just is so right

Answer:

the second one

Step-by-step explanation:

Answer:

87, I believe. The powers of 10, and 87 is in the powers of 10.

Step-by-step explanation:

Step-by-step explanation:

Step one:

given data

let the shirts be x

and the  pants be y

Required

the number of shirts and pants

the systems of the equation for the situation is

2x+6y=11-------------1

5x+8y=18.75-------2

2x+6y=11-------------1X 5

5x+8y=18.75-------2 X2

10x+30y=55-------------1

-10x+16y=37.5-------2

0x+14y=-17.5

divide both sides by 14

y=17.5/14

y=1.25

pants= $1.25

put y=2.32 in eqn 1 2x+6y=11

2x+6(1.25)=11

2x+7.5=11

2x=11-7.5

2x=3.5

x=3.5/2

x=$1.75

Shirts = $1.75

Answer:

[tex]n=3.875[/tex]

Step-by-step explanation:

First, we can expand the brackets:

[tex]-(5n-9)+3n=-2(5n-20)[/tex] (given)

[tex]-5n+9+3n=-10n+40[/tex]

[tex]-2n+9=-10n+40[/tex] (combine like-terms)

[tex]8n=31[/tex]

[tex]n=3.875[/tex]

Hope this helps :)

Answer:

answer and explanation in the pics above

hope it helps

Answer:

X = -4Y/9 + 32/3

Step-by-step explanation:

you can solve for X by simplifying both sides of the equation then isolating the variable

The value of the given equation y = -9/4(x - 8) + 6 for the x will be x = -(4/9)y + 96/9

There are many different ways to define an equation. The definition of an equation in algebra is a mathematical statement that demonstrates the equality of 2 mathematical expressions.

More than one variable may be present inside a linear equation. An equation is said to be linear if the maximum power of the variable is consistently unity.

A formula known as an equation uses the same sign to denote the equality of two expressions.

In another word, the equation must be constrained with some constraints.

Given the equation,

y = -9/4(x - 8) + 6

By taking LCM in right-hand side

y = [-9(x - 8) + 24]/4

Cross multiply

4y = -9(x - 8) + 24

Interchange

9(x - 8) = 24 - 4y

9x - 72 = 24 - 4y

x = (4/9)y + 96/9

Hence "The value of the given equation y = -9/4(x - 8) + 6 for the x will be x = -(4/9)y + 96/9".

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Answer:

5 pounds was added

Step-by-step explanation:

Answer:

33.75 miles in 45 minutes,

45 miles in an hour

Step-by-step explanation:

45 minutes: 2 1/3= 7/3 ---> 7/3*3=7,

                    1 3/4= 7/4 ---> 7/4*3=5.25

car travels 5.25 miles for every 7 minutes,

45/7*5.25= 33.75 miles

1 hour (60 minutes):

using that the car travels 5.25 miles for every 7 minutes,

60/7*5.25= 45 miles

Hope that makes sense!

Answer:

im not but thxxxx for points

Step-by-step explanation:

Answer:

meee help me w the module 4 DBA

Step-by-step explanation:

Answer:

oh boi its for me? yay

Step-by-step explanation:

Answer:

a8 = 512.

Step-by-step explanation:

This is geometric sequence with common ratio r = 2 and first term a1 = 4.

nth term = a1 r^(n-1)

So a8 = 4 2(^8-1)

= 4 * 2^7

= 4*128 = 512.

Answer:

A = 25.758 m²

Step-by-step explanation:

Width of the sand pit, b = 2.7 m

Length of the sand pit, l = 9.54 m

We want to cover the sand pit with a piece of plastic. We need to find how many square meters of plastic will be needed to cover the sand pit. It is equal to the area of sand pit. It is in the shape of rectangle. Its area is given by :

A = l × b

A = 2.7 × 9.54

A = 25.758 m²

So, 25.758 m² of plastic will be needed to cover the sand pit.

Answer:

The dryer cost $375

Step-by-step explanation:

834/2 = 417

84/2 = 42

417 - 42 = 375

834 - 375 = 459

459 - 84 = 375

PROOF: 417 - 375 = 42 then double that answer to get 84

May I have brainliest please? :)

Answer:

x = 19°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles, thus

x + 106° = 125° ( subtract 106° from both sides )

x = 19°

Answer:

This is an example of the product of powers property tells us that when you multiply powers with the same base you just have to add the exponents.

Step-by-step explanation:

Answer.

594 7/25 converted into decimal is 594.28, 89 37/100 converts to 89.37. Add 594.28 and 89.37 together and we get out final answer of 683.65. Convert that back into fraction form and we get (683 13/20)

Step-by-step explanation:

Answer:

4480

Step-by-step explanation:

I did it

Answer:

B C E

Step-by-step explanation:

A coordinate plane showing Parking Garage Rates with Time in hours on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 2.4) and (5, 4).

A graph is a visual representation of data or a mathematical function, which is often used to show the relationship between variables or to illustrate trends over time.

In the options given, the three graphs that show functions with direct variation are represented by straight lines passing through the origin, indicating that there is a direct relationship between the two variables. Specifically:

Thus, these graphs show functions with direct variation.

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Your question seems incomplete, the probable complete question is:

Which graphs show functions with direct variation? Select three options. A coordinate plane showing Parking Garage Rates with Time in hours on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 2.4) and (5, 4). A coordinate plane showing Cost of Cinnamons with Quantity in ounces on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 0.3) and (5, 1.5). A coordinate plane showing Breakfast Cost with Number of Meals on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 1.2) and (5, 6). A coordinate plane showing Ferry Ride Cost with Number of Persons on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 2) and (5, 8). A coordinate plane showing Ferry Ride Cost with Number of Persons on the x-axis and Total Cost in dollars on the y-axis with a line passing through points at (1, 2) and (5, 8).

Answer:

x ≤ 75

Step-by-step explanation:

The computation of the inequality function is as follows:

Let us assume the remaining time left for other drills be x

Given that the team spends 20 minutes for running laps

And minimum of 15 minutes for discussing plays

Also practicing for last one hour and 45 minutes

Now as we know that

1 hour = 60 minutes

So total minutes would be

= 60 + 45

= 105 minutes

Total minutes spend by the team is

= 20 + 15

= 35 minutes

So now the remaining time left is

x ≤ 105 - 35

x ≤ 75

Answer:

no

Step-by-step explanation:

Answer:

8, 3, -2, -7

Step-by-step explanation:

To solve you have to multiply -5 by whatever number is in the x column of the table then add 3. For example, -5*0 = 0, then 0+3 = 3 and that's your answer(s).

Answer:  In order from top to bottom:

9

3

-2

-7

Step-by-step explanation:

To find the y u would replace 'x' in the equation with one of the x's in the colom.

For example:

     y = -5 (-1) + 3

         = 6 + 3

           = 9

REMEBER = A negative times a negative is a positve.

Answer:

44 swimmers

Step-by-step explanation:

Given the data points :

66, 8) (71, 23) (72 16) (75 30) (78 35) (80 24) (82 37) (86 37) (87 42) (90 50)

Temperature X:

66

71

72

75

78

80

82

86

87

90

Number of swimmers Y:

8

23

16

30

35

24

37

37

42

50

Using the online regression calculator :

The regression model obtained is ;

ŷ = 1.5045X - 88.2056

Where

1.5045 = gradient or slope

-88.2056 = intercept

x = independent variable

y = dependent variable

Number of swimmers when temperature = 88

y = 1.5045(88) - 88.2056

y = 44.19

y = 44 (nearest whole number)

Answer:

44 Swimmers

Step-by-step explanation:

I did the test....

Answer:

The value of [tex]r=33[/tex] which makes the equation true.

Step-by-step explanation:

Given the equation

[tex]\frac{r}{-11}=-3[/tex]

We have to find the value of r for which the equation must be true.

solving the equation

[tex]\frac{r}{-11}=-3[/tex]

Multiply both sides by -11

[tex]\frac{r\left(-11\right)}{-11}=\left(-3\right)\left(-11\right)[/tex]

[tex]r=33[/tex]

Therefore, the value of [tex]r=33[/tex] which makes the equation true.

VERIFICATION:

Putting [tex]r=33[/tex] in the equation

[tex]\frac{r}{-11}=-3[/tex]

[tex]\frac{33}{-11}=-3[/tex]

[tex]-3=-3[/tex]              ∵ [tex]\frac{33}{-11}=-3[/tex]

L.H.S = R.H.S

Therefore, the value of [tex]r=33[/tex] which makes the equation true.

Answer:

F. [tex] 4, 4\sqrt{3} [/tex]

Step-by-step explanation:

✔️Finding length of side s using:

[tex] cos(\theta) = \frac{adjacent}{hypotenuse} [/tex]

Where,

[tex] cos(\theta) = cos(60) = \frac{1}{2} [/tex]

Adjacent = s

Hypotenuse = 8

Plug in the values

[tex] \frac{1}{2} = \frac{s}{8} [/tex]

Multiply both sides by 8

[tex] \frac{1}{2} \times 8 = \frac{s}{8} \time 8 [/tex]

[tex] \frac{8}{2} = s [/tex]

[tex] 4 = s [/tex]

s = 4

✔️Finding length of side q using:

[tex] sin(\theta) = \frac{opposite}{hypotenuse} [/tex]

Where,

[tex] sin(\theta) = sin(60) = \frac{\sqrt{3}}{2} [/tex]

Opposite = q

Hypotenuse = 8

Plug in the values

[tex] \frac{\sqrt{3}}{2} = \frac{q}{8} [/tex]

Multiply both sides by 8

[tex] \frac{\sqrt{3}}{2} \times 8 = \frac{q}{8} \times 8 [/tex]

[tex] \frac{\sqrt{3}}{1} \times 4 = q [/tex]

[tex] 4\sqrt{3} = q [/tex]

[tex] q = 4\sqrt{3} [/tex]

Answer:

F

Step-by-step explanation:

The slopes of H and J are 2/3 so those cannot be the correct answer.  F will pass through the point (3,2).  Hope this helps!

Answer:

-7/2

Step-by-step explanation:

Answer:

[tex]p<-18[/tex]

graph:

find -18, and draw an arrow going right

Answer:

1250 => 250 ( subtracted from the balance population )

1000 => 300

800 => 350

450. => 400

50.

So it will take around 5 years I think to be below 100.

Thank you and please rate me as brainliest as it will help me to level up

Answer:

Length = 6.25 feet

Step-by-step explanation:

Your dad is designing a new garden for your backyard. He has 20 feet of fencing to go around the garden.

Let the width is x.

Length is 2 1/2 feet longer than the width i.e. (x+2 1/2) = (x+2.5) feet

Perimeter = 20 feet

2(l+b) = 20

(l+b) = 10

(x+2.5+x) = 10

2x+2.5 = 10

2x = 7.5

x = 3.75 feet

Length = (x+2.5)

= (3.75+2.5)

= 6.25 feet

So, the length of the garden is 6.25 feet.

Answer:

9is√3

Step-by-step explanation:

I think I don't really know but that's my answer