5x+x=-18
solve for x

Answer:

e

Step-by-step explanation:

Answer:

92800

Step-by-step explanation:

Brainliest?

Hope this helps

Answer:

20

Step-by-step explanation:

pilot flew a 400-mile flight in 2.5 hours flying into the wind . Flying the same rate and with the same wind speed, the return trip took only 2hours with a tailwind

The speed can be defined as the ratio distance over time, but in this case the pilot is flying at the speed of the plane as well of speed of the wind. We can denote speed of plane as "s" and speed of the wind as "k"

Then the speed of the plane=(s-k) this is because it is moving in the opposite direction of the wind.

But From the question, the plane distance=400mile and the corresponding time =2.5 h

Then the speed of the plane=(s-k) =400mile/2.5

=160mph

By the time it return from trip, the speed the plane flew with is (s+k) because the wind is at the rear.

From the question, the plane distance=400mile and the corresponding time =2 h

Then (s+k)= (400/2)

(s+k)=200mph

Answer:

X= -8 or x= 8

Step-by-step explanation:

I took the test/quiz

Answer:

volume 1050 [tex]in^{3}[/tex]

surface area 859 [tex]in^{2}[/tex]

Step-by-step explanation:

volume is length times width times height (7*25*12)/2

surface area is area of all the sides added together

2(25*12)+(12*7)+ 2([tex]\frac{7*25}{2}[/tex])

Answer:

Volume = 1008

Surface Area = 840

Step-by-step explanation:

Find the other leg of the right triangle using the Pythagorean theorem. Answer is 24. Google formula for volume, log in answers. Google formula for surface area, log in answers.

Answer:

∠P = 39º

∠Q=120º

∠R = 21º

Step-by-step explanation:

m∠P+m∠Q+m∠R=180º (sum of ∠s in a triangle)

2x-3+6x-6+x=180º (substitution)

9x-9=180º (algebra)

9x=189º (algebra)

x=21º (algebra) (this is ∠R)

(2x-3)=39º (algebra) (this is ∠P)

6x-6=120º (algebra) (this is ∠Q)

Answer:

∠R = 21°

∠Q = 120°

∠P = 39°

Step-by-step explanation:

Step 1:

6x - 6° + 2x - 3° + x = 180°        Sum of a Δ

Step 2:

9x - 9° = 180°         Combine Like Terms

Step 3:

9x = 189°        Add 9 on both sides

Step 4:

x = 189° ÷ 9       Divide

Step 5:

x = 21°

Step 6:

2 ( 21 ) - 3 = ∠P = 39°

Step 7:

6 ( 21 ) - 6 = ∠Q = 126°

Step 8:

∠R = 21°

Answer:

∠R = 21°

∠Q = 120°

∠P = 39°

Hope This Helps :)

Answer:

96

Step-by-step explanation:

Answer:

4, 10, 16, 22

Step-by-step explanation:

Plug in the variables according to the equation

So for the equation f(x)= 3x-2 plug if you were looking for A you would put A for f(x) and 2 where the x is so it would look like

A= 3(2)-2 which is A= 6-2 = 4

If we do the same for all of them then they would look like:

B= 3(4)-2

12-2= 10

C= 3(6)-2

18-2= 16

D= 3(8)-2

24-2=22

So youre basically replacing the f(x) and x by the table chart

I hope this helped :)

Answer:

b(a+2)(a-1)

Step-by-step explanation:

b(2a+a^2-2-2-a)

Answer:

b (a + 2) (a - 1)

Step-by-step explanation:

1. First you need to factor out b from the equation because it is the one factor that they all have in common.

2ab + a²b - 2b - ab

b (2a + a² - 2 - a)

2. Then you just factor 2a + a² - 2 - a and remember the b

b (2a + a² - 2 - a)

b (a + 2) (a - 1)

check your answer:

b (a + 2) (a - 1)

b (a²- a + 2a - 2)

a²b - ab + 2ab - 2b

2ab + a²b -2b - ab

hope this helps!!

Answer:

Subtract by 5 on both sides.

Step-by-step explanation:

x+5 = -10. if you subtract both sides by 5, you will get x+5-5=-10-5, which can be simplified to x=-15.

Answer:400

Step-by-step explanation:

Multiply the total number of students by the ratio given

5/7(560)

Answer:

For every 10 on the x axis, there is 80 on the y axis

Step-by-step explanation:

Answer:

Explained below.

Step-by-step explanation:

Denote the variable as follows:

M = male student

F = female student

Y = ate breakfast

N = did not ate breakfast

(a)

Compute the probability that a randomly selected student ate breakfast as follows:

[tex]P(Y)=\frac{n(Y)}{N}\\\\=\frac{198}{330}\\\\=0.60[/tex]

(b)

Compute the probability that a randomly selected student is female and ate breakfast as follows:

[tex]P(F\cap Y)=\frac{n(F\cap Y)}{N}\\\\=\frac{121}{330}\\\\=0.367[/tex]

(c)

Compute the probability a randomly selected student is male, given that the student ate breakfast as follows:

[tex]P(M|Y)=\frac{n(M\cap Y)}{n(Y)}\\\\=\frac{77}{198}\\\\=0.389[/tex]

(d)

Compute the probability that a randomly selected student ate breakfast, given that the student is male as follows:

[tex]P(Y|M)=\frac{n(Y\cap M)}{n(M)}\\\\=\frac{77}{154}\\\\=0.50[/tex]

(e)

Compute probability of the student selected "is male" or "did not eat breakfast" as follows:

[tex]P(M\cup N)=P(M)+P(N)-P(M\cap N)\\\\=\frac{n(M)}{N}+\frac{n(N)}{N}-\frac{n(M\cap N)}{N}\\\\=\frac{n(M)-n(N)-n(M\cap N)}{N}\\\\=\frac{154+132-77}{330}\\\\=0.633[/tex]

(f)

Compute the probability of "is male and did not eat breakfast as follows:

[tex]P(M\cap N)=\frac{n(M\cap N)}{N}\\\\=\frac{77}{330}\\\\=0.233[/tex]

Answer:

[tex] \frac{1}{8} [/tex]

Answer:

The correct answer is 1/4!

Step-by-step explanation:

On Acellus

Have a great day!

Answer:

X ≤ 0

Step-by-step explanation:

Trust

Answer:

x = 11, lucky you, this stuff is easy

Step-by-step explanation:

110 - 11 = 99

9 x 11 = 99

99 + 11 = 110

Answer:

x = 11

Step-by-step explanation:

9x + 11 = 110

- Pass the 11 to the other side of the equation (grouping similar terms) and then perform the following operation:

9x = 110 - 11

9x = 99

- Now we have to obtain x by dividing 9 on both sides of the equation:

(9/9)x = 99/9

x = 99/9, which is divisible by 11.

Answer:

2x - 3

Step-by-step explanation:

The missing side is the value of the perimeter subtract the sum of the 2 given sides, that is

? = 10x + 1 - (5x - 2 + 3x + 6)

   = 10x + 1 - (8x + 4) ← distribute parenthesis by - 1

   = 10x + 1 - 8x - 4 ← collect like terms

   = 2x - 3

Answer:

Step-by-step explanation:

When you multiply two negative numbers or two positive numbers then the product is always positive.

Answer:

Negative

If you multiply/divide a positive by a negative

Step by step explanation:

Answer: nothing

Step-by-step explanation:

Answer: m

8 + 8 m 7 n + 28 m 6 n 2 + 56 m 5 n 3 + 70 m 4 n 4 + 56 m 3 n 5 + 28 m 2 n 6 + 8 m n 7 + n 8

Step-by-step explanation: Just use binomial theorem

The probability of this outcome by expanding (m + n)8 is 4.

Probability is simply how likely something is to happen. Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are.

Given:

Total free shots = 8

Oliver make free shots =6

Oliver missed free shots = 2

As, Oliver wanted the free throw and the free throw he missed turn both equal.

So,

=8 / 2

= 4.

Hence,  probability of this outcome by expanding (m + n)8 is 4.

Learn more about probability here:

https://brainly.com/question/12629667

#SPJ2

Answer:

Step-by-step explanation:

Step one:

given data

cost of T-shirt = $7.50

they could sell for either  $11.00 and $15.00.

Required

The percent increase in the price

% increase = (cost-sales)price/cost price

% increase = (7.5-11)/7.5*100

% increase = 3.5/7.5*100

% increase = 0.47*100

% increase =47%

OR

% increase = (7.5-15)/7.5*100

% increase = 7.5/7.5*100

% increase = 7.5/7.5*100

% increase =1*100

% increase =100%

The  increase could be 47% or 100%

Answer:

4/6

Step-by-step explanation:

1/2 = 3/6. 3/6 + 1/6 = 4/6

Answer:

4/6

Step-by-step explanation

Answer: i think that is the ans

Step-by-step explanation:

Answer:

10m +30=12m

Step-by-step explanation:

y=10x +30

y=12x

Answer:

5y-10x=35

Step-by-step explanation:

The standard way to write a linear relationship between the x and y variables is through a homogeneous equation as a combination of the x and y variables with real coefficients.

Answer:

I'm not sure what you're asking, but I got x=45

Step-by-step explanation:

x+3x+x+3x=8x=360 degrees

360/8=45 so x=45

Answer:

There were 240 cupcakes in the bakery

Step-by-step explanation:

Assume that the number of boxes used is x

∵ If 6 cups  were placed in the box, there would be 20 boxes left

∴ The number of cups in each box = 6

∴ The number of boxes used = (x - 20)

→ Multiply the number of cups in each box by the number of boxes

  used to find the total number of cups

∵ The number of cups = 6(x - 20)

∴ The number of cups = 6x - 120 ⇒ (1)

∵ If 3 cupcakes were placed in each box, it  would run out of 20 boxes

∴ The number of cups in each box = 3

∴ The number of boxes used = (x + 20)

→ Multiply the number of cups in each box by the number of boxes

  used to find the total number of cups

∵ The number of cups3(x + 20)

∴ The number of cups = 3x + 60 ⇒ (2)

∵ The number of cups is the same in the two cases

→ Equate the right sides of (1) and (2)

∴ 6x - 120 = 3x + 60

→ Add 120 to both sides

∴ 6x = 3x + 180

→ Subtract 3x from both sides

∴ 3x = 180

→ Divide both sides by 3 to find x

∴ x = 60

∴ The number of boxes used is 60

∵ In the bakery 4 cupcakes in one box

∵ The number of boxes is 60

∴ The number of cupcakes = 4 × 60

∴ The number of cupcakes = 240

∴ There were 240 cupcakes

Answer:

Therefore, the number of adults at the football game was 6.

Step-by-step explanation:

Let A represents the number of adults and C represents the number of children.

Therefore, the ratio of children to adults is given as follows:

23:1 = C:A ....................... (1)

Since C = 140, this is substituted into equation (1) as follows:

23:1 = = 140:A ....................... (2)

Transforming equation (2) and solve for A, we have:

23 / (23 + 1) = 140 / (140 + A)

23 / 24 = 140 / (140 + A)

0.958333333333333 = 140 / (140 + A)

0.958333333333333 (140 + A) = 140

(0.958333333333333 * 140) + 0.958333333333333A = 140

134.166666666667 + 0.958333333333333A = 140

0.958333333333333A = 140 -134.166666666667

0.958333333333333A = 5.833333333333

A = 5.833333333333 / 0.958333333333333

A = 6.08695652173878

Rounding to a whole number, we have:

A = 6

Therefore, the number of adults at the football game was 6.