Is 9 a solution to the equation?
3x - 7=20
Yes no

Answers

Answer 1

Answer:

yes

Step-by-step explanation:

because its right i know its right

Answer 2
yes 9 is a solution to the equation. When you substitute 9 for x and solve you get 20=20 which means that 9 is in fact a solution.

Related Questions

Carpenter Chalberg is building a new wall in his house. The wall is 8 feet long and 8 feet tall. The wall will be framed with wood and also have studs (vertical supports) at least every 18 inches. The wall has no doors or windows. He is looking to purchase enough 8 foot boards of wood to make the wall’s frame. How many boards will Carpenter Chalberg need?

Answers

9514 1404 393

Answer:

  9

Step-by-step explanation:

For studs 16" O.C., Chalberg will need 9: one at the beginning of each of the 16" spaces in the 96" width of the wall, and one at the end. That's a total of 6+1 = 7 studs.

The top and bottom edges of the wall are each 8', so will require 1 more board each.

The total number of boards Chalberg needs is 9.

Nancy sold tickets to a school play. She sold $426 worth of tickets. She sold 8 more adult tickets than children tickets and 3 times as many senior tickets than children tickets. If children tickets are $3, senior tickets are $4 and adult tickets are $6, how many adult tickets did Nancy sell

Answers

Answer:

So number of Adult tickets sold = A = 26.

Step-by-step explanation:

Define A, C, S as

A = number of adult tickets,

C = number of children tickets,

S = number of Senior tickets.

Then, by the statement of the problem, we have that

A = 8 + C,

S = 3C,

3C + 4S + 6A = 426,

so that

3C + 4(3C) + 6(8 + C) = 426

3C + 12C + 48 + 6C = 426

21C + 48 = 426

7C + 16 = 142

7C = 126

C = 126/7 = 18

A = 8 + 18 = 26

S = 3(18) = 54

Find the equation of the line that passes through (1,3) and is perpendicular to
y=2x+3
Leave your answer in the form y=mx+c

Answers

Answer:

y=-1/2x+7/2

Step-by-step explanation:

Gradient is negative reciprocal so -1/2x

3=-1/2x + 7/2

y=-1/2x+7/2

Answer:

perpendicular lines have the same gradient

y=2x+3

The gradient of the two lines is 2

Gradient=change in y/change in x

=y2-y1/x2-x1

Let (x,y) also lie on the line

2= y-3/x-1

2(x-1) =y-3

2x-2=y-3

2x-y=-3+2

2x-y= -1

2x+1 =y

y=2x+1

Step-by-step explanation:

HOPE THAT THIS IS HELPFUL.

HAVE A GREAT DAY

Pls help due in 10 minutes

Answers

Answer:

here is your answer hope it helps you

How do you write 3.707 x 10-8^-8 in standard form? ASAP BRAINLIST ​

Answers

.00000003707 I believe

[tex]J=∫_e^b▒3dx/(xln^2 x)[/tex]

Answers

Answer:

huh rewrite the question

IF YOU ARE REALLY GOOD A MATH THEN PLEASE ANSWER THIS !!!
Your help will be much appreciated because i am losing my sanity doing this math

Answers

Hey there!

Let's take the number of cows in the field as 'c'.

Then, the number of horses in the field is = c + 2 [2 more horses than cows]

Total number of animals on the field = 16.

So, equation becomes...

c + c + 2 = 16

2c + 2 = 16

Hope it helps ya!

w x and y are three integers w is 2 less than x y is 2 more than x prove that wy+ 4 =x^2

Answers

w + 2 = x

x + 2 = y

Cross multiply

y(w+2) = x(x+2)

wy + 2y = x^2 + 2x

make x the subject of the equation

x = y - 2

substitute this in place of (x) in 2x

wy + 2y = x^2 + 2(y-2)

wy + 2y = x^2 + 2y - 4

wy  + 2y - 2y + 4 = x^2

wy + 4 = x^2

I'm thinking of 2 numbers. Both numbers have the same absolute value. What number must be true about the 2 numbers?

Answers

Answer: they have the same number in them for example -4 and 4

Step-by-step explanation:

square root of 55 to the nearest integer

Answers

The nearest integer is 7 because the nearest perfect square root is 49. Answer is 7-8
7 good luck with your assignment

What are the characteristics of the graph of the inequality x < 4.5?

The ray will move to the left.
It will use a closed circle.
It will use an open circle.
The ray will move to the right.

Answers

Answer:

see explanation

Step-by-step explanation:

Given x < 5

The graph will have an open circle at 5 indicating that x is not equal to 5, which would be a closed circle.

The ray will move to the left since values less than 5 are to the left of 5

Answer:Please see explanation

Step-by-step explanation:

What are the characteristics of the graph of the inequality x < 4.5?

The answer is The ray will move to the left.

It will use an open circle.

Please votes me 5 stars,1 heart,and mark as brainliest. Thanks

Juanita is tying ribbon on gift bags. She has 24 feet of ribbon and each gift bag uses 0.75 foot of ribbon. The function

r = 24 -0.75g represents the amount of ribbon r Juanita has left after tying ribbon on g gift bags. Find the zero of the function. Describe

what this value means in the context of this situation

The zero of the function is at ___. This represents that after tying ribbon on ____ gift bags, Juanita will have ____ feet of ribbon left.

Answers

The zero of the function is at 32 gift bags. This represents that after tying ribbon on 32 gift bags, Juanita will have zero feet of ribbon left.

According to the question;

The function r = 24 -0.75g represents the amount of ribbon r Juanita has left after tying ribbon on g gift bags.

The zero of the function is at, r = 0.

Therefore;

0 = 24 -0.75g

g = 24/0.75

g = 32.

This value means that after tying 32 gift bags, Juanita will have zero feet of ribbon left.

Read more;

https://brainly.com/question/20828026

please help and explain how to solve these! Thanks

Answers

2. C
Slope = 40/8 = 5
Slope of graph c = 5/1 = 5

3. D
Slope = 9/3 = 3
Slope of graph d = 81/27 = 3

Step-by-step explanation:

Use the Pythagorean Theorem to find the missing sides in the triangles.

[tex]c^{2}[/tex] = [tex]a^{2}[/tex] + [tex]b^{2}[/tex]

Q2. [tex]c^{2}[/tex] = 8^2 + 40^2

[tex]c^{2}[/tex] = 1664

c = [tex]\sqrt{1664}[/tex]

c = 8[tex]\sqrt{26}[/tex]

Find the missing sides of the other triangles and figure out which ones are the same.

Q3. Do the same thing as Q2.

Which equation, when solved, results in a different value of x than the other three? O -7-9-20 0 + 5 3 7 X=-20 4 O 3 4. - (b)*--20 +7(49-2-06-4) 8 O ​

Answers

Answer:

1

Step-by-step explanation:

F(x)= 2x^3 + 5x^2 -x -6 is divided by x+1

What is the remainder and is it a fraction?

Remainder: 0 or -2
Is it a factor: yes or no

Answers

Step-by-step explanation:

substitute x= -1 into the equation to get the remainder

remainder= -2

the remainder is not a fraction

no, it is not a factor since its remainder is not zero

The functions f and g are defined as follows.
f(x)=-3x-1
3
g(x)=2x? +2
Find f (2) and g(-2).
Simplify your answers as much as possible.

Answers

>> Answer :

__________

[tex] \: [/tex]

f(x) = -3x - 1

g(x) = 2x + 2

Soo :

f(2) :

f(2) = -3(2) - 1

f(2) = -6 - 1

f(2) = -7

.

g(-2) ;

g(-2) = 2(-2) + 2

g(-2) = -4 + 2

g(-2) = -2

(7x+19){}(x+1){}(x+5)

Answers

We move all terms to the left:

7x-19-(x+5)=0

We get rid of parentheses

7x-x-5-19=0

We add all the numbers together, and all the variables

6x-24=0

We move all terms containing x to the left, all other terms to the right

6x=24

x=24/6

x=4

1) At Frannie's Fruit Market the price per orange (or unit rate) is $0.45. If a graph is made showing
the relationship between the number of oranges (x) and the total cost (y), which does not
represent the slope of the line?
50 POINTS

Answers

Answer:

b) 5/9

Step-by-step explanation:

The unit rate is same as the slope:

m = 0.45 = 45/100 = 9/20

Compare with the answer choices:

a) 45/100, Same or equivalentb) 5/9, Differentc) 9/20, Same or equivalentd) 27/60 = 9/20, Same or equivalent

Choose the symbol that correctly compares the fractions below.

9/11 ? 10/11

a.) >
b.) <
c.) =

Answers

Answer:

b) <

Step-by-step explanation:

Answer:

b.)<

9 / 10 < 10 / 11

Hope it helps:-)

Given that Cos(A) = .6 and csc(A) is -1.25, what is tan (a)

Answers

Answer:  -4/3

============================================================

Explanation:

cos(A) = 0.6 = 6/10 = 3/5

Recall that csc is the reciprocal of sine.

If csc(A) = -1.25, then sin(A) = 1/csc(A) = 1/(-1.25) = -0.8 = -8/10 = -4/5

Then we would have

tan(A) = sin(A)/cos(A)

tan(A) = sin(A) ÷ cos(A)

tan(A) = (-4/5) ÷ (3/5)

tan(A) = (-4/5) * (5/3)

tan(A) = -4/3

Answer:

-4/3

Step-by-step explanation:

Check the solution

solve pls brainliesttt

Answers

Answer:

-343

-125

Here you go

Answer:

1. -343

2. 25

3. v+21=47   v= 26

Step-by-step explanation: Hope this helps!

5) How many gal. of a 65% saline solution
must be mixed with 8 gal. of pure water to
make a 25% solution?

Answers

I bell 2 gallons must be added. But if it’s wrong sorry :(

Adjoa’s gross salary for last month was Ghc4,687.24. If Ghc421.78 was deducted from Adjoa’s salary pay, how much take-home pay did Adjoa earn this past month?

Answers

Adjoa’s gross salary for last month was Ghc4,687.24. If Ghc421.78 was deducted from Adjoa’s salary pay, the take-home pay that Adjoa earn in the past month is Ghc4,265.46

The gross salary is the amount received by an individual prior to the deduction of the taxes.

Given that:

Adjoa's gross salary for last month = Ghc4,687.24and Ghc421.78 was deducted from Adjoa's salary pay.

Then, the take-home that Adjoa earned in the past month is calculated by removing the amount deducted from her gross salary.

i.e.

= Ghc4687.24 - Ghc421.78

= Ghc4,265.46

Learn more about gross salary here:

https://brainly.com/question/13582411?referrer=searchResults

https://brainly.com/question/16688602

The pot-belly seahorse is one of the largest seahorse species and is known for having a large belly. As a part of its diets, a pot-belly seahorse eats about 63 shrimp per week. It eats the same amount each day.How much shrimp does the pot-bellied seahorse eat per day?

Answers

Answer:

9 shrimp per day.

Step-by-step explanation:

63/7=9

9*7=63

come nueve al día

Dividimos 63/7=9

ANSWER LAST QUESTION PLZZZ

Answers

Step-by-step explanation:

what ask you ask you not ask any question please write your question please mark me brainlist

HURRY PLEASEEEEE

The measure of segment AB with a(-4,-9) and B(4, -3) is

Answers

Answer: 10

Step-by-step explanation:

using [tex]d = \sqrt{(x_{1}-x_{2} )^{2} +(y_{1}- y_{2} )^{2} }[/tex] when [tex]P_{1} =(x_{1} ,y_{1} )[/tex] and [tex]P_{2} = (x_{2}, y_{2})[/tex]

so [tex]d = \sqrt{((-4)-4)^{2}+((-9)-(-3))^{2} }[/tex]

[tex]d = \sqrt{(-4-4)^{2}+(-9+3)^{2} }[/tex]

[tex]d = \sqrt{(-8)^{2}+(-6)^{2} }[/tex]

[tex]d = \sqrt{64+36}[/tex]

[tex]d= \sqrt{100}[/tex]

[tex]d = 10[/tex]

please give me a brainliest answer

What can you multiply 2 to 10 by to get the ratio of 4 to 20

Answers

Answer:

multiply both by 2

Step-by-step explanation:

2 x 2 = 4

10 x 2 = 20

Find the angles marked x,y and z.
ASAP

Answers

Answer:

x= 45°

y= 95°

z= 85°

hope this helps <3

Answer:

Step-by-step explanation:

x= 50

y+25=180(because it is on a straight line)

y+25=180

y+25=180

y+25-25= 180-25

y+0= 155

y= 155

z+ y=180

z+ 155= 180

z+ 155- 155 =180-155

z+ 0 =  25

z = 25

x = 50

y = 155

z = 25

def is a right triangle.

Answers

Answer:

false

Step-by-step explanation:

I am not sure about it if correct pls no mark me as brainliest tq

It’s not a right angle, the length is not the same

standard form
y = -8x + 7

Answers

Y=-(8+7) standard form
Y=-1 answer
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