Mathematics High School

Can someone please help! I need this quickly and I’m really struggling!

Answers

Answer 1

Answer:

x = 4

y = 3

Step-by-step explanation:

2x - 3(x - 1) = -1

2x - 3x + 3 = -1

-x + 3 = -1

- 3 - 3

(-1) -x = -4 (-1)

x = 4

y = 4 - 1

y = 3

Answer 2

Answer:

x = 4, and y = 3

Step-by-step explanation:

I hope i helped you! :D

Related Questions

Numbers 6 , 3 , (X – 4) are length of sides of an isosceles triangle , X =

Answers

For those question the anwser would be 5x+20=6 that was easy

(HELP ASAP GEOMETRY) Find the length of the midsegment. The diagram is not to scale.

Answers

Answer:

Step-by-step explanation:

3.
We have $10,000 to invest for 45 months. How much money will we have if we put
the money into an account that has an annual interest rate of 5.5% and interest is
compounded...
a. monthly
b. quarterly
c.continuously
(find all)

Answers

The answer is a I think that is correct

Jessica's business has 83 rolls of toilet paper. Customers use 3 rolls of toilet paper per day.

Write an expression to represent the amount of toilet paper after d days. i dont understand can someone post an answer an explain?

Answers

I believe it is 3 x d=83 (d meaning days) so you have to figure out how many days the customers used toilet paper. So to find that out you would have to do 83 divided by 3 which equals 27.6 so maybe round up to the nearest tenth so I’d say that d=28. I hope I was able to help you!

3x-8>22
Hellllllllllllllllpppppp

Answers

Answer:

Step-by-step explanation:

Pemdaa

x>10

3x-8>22
3x-8+8>22+8
3x>30
3x/3>30/3
x>10

The front of a vacation cottage is an equilateral triangle with a base of 44 feet. What is the height
x of the cottage above its foundation?

Answers

Answer:

Step-by-step explanation:

Pls help me with my homework

Answers

Answer:

b = 8

Step-by-step explanation:

Using Pythagorean Theorem, a[tex]a^{2} +b^{2} =c^{2}[/tex], we just plug in what we know.

We know that the hypotenuse, c, is 10 km. We also know that one of the other side lengths is 6 km, we can plug that into either a or b.

Now, our equation will be: [tex]6^{2} +b^{2} =10^{2}[/tex].

You could also use the equation: [tex]b^{2} =10^{2} -6^{2}[/tex].

Next, we'll just solve the equation.

[tex]10^{2} =100[/tex], [tex]6^{2} = 36[/tex]

[tex]b^{2} =100 - 36[/tex]

[tex]b^{2} = 64[/tex]

[tex]\sqrt{b^{2} } = \sqrt{64}[/tex]

b = 8

Good luck :D

Find the missing value so that the two points (-1, -1) and (x, 1) have a slope of 217.
6
7
10
12

Answers

Answer:

Step-by-step explanation:

you needed to make a graph and then find the (-1,-1) and then move two spaces to the right and then seven up and you get (6,1)

hope this helped

Find the missing value need help

Answers

Answer:

-10 +5

its +5

Step-by-step explanation:

Answer:

Step-by-step explanation:

i just know it

i dont even know this one besties help my small brain 3

Answers

Answer:

-If the legs of the triangle added up are bigger than the hypotenuse, its an acute tri.

-if they are smaller then its and obtuse angel

-if the legs added up are = to the hypotenuse, then the triangle Is a right triangle.

your right triangle is:

5,12,13

Step-by-step explanation:

Because 5^2+12^2=13^2

It is true

A triangle has sides of length 3 cm, 5 cm, and 7 cm.
Find the size of the largest angle in the triangle,

Answers

Answer:

C=120 degrees

Step-by-step explanation:

We can use the law of cosines to find an angle when we have all three sides

(7)^2 = (5)^2 + (3)^2 -(2)(5)(3)Cos(C)

49 = 25 +9 -30Cos(c)

49= 34 -30Cos(c)

15 = -30Cos(c)

Cos(c) = -1/2

C=120 degrees

geometry
please help! asap!

Answers

Answer:

the awnser is 135

Step-by-step explanation:

15 × 9 = 135

Answer:

54 m^2

Step-by-step explanation:

Area = 1/2 * base * height

You are missing height, but because you have the hypotenuse, you can use the Pythagorean Theorem to find it.

height^2 + (9m)^2 = (15m)^2

height = sqrt(225 m^2 - 81 m^2)

height = sqrt(144 m^2) = 12m

Area = 1/2 * 9m * 12m = 54 m^2

Four friends were born in consecutive years. The sum of their
ages is 94. What is the age of the oldest friend?

Answers

Answer:

Step-by-step explanation:

Since they were born on consecutive years, their ages are 4 consecutive whole numbers. Let the lowest age be x. Then the other ages are x + 1, x + 2, and x + 3.

Now we add the 4 expressions and set the sum equal to 94.

x + x + 1 + x + 2 + x + 3 = 94

4x + 6 = 94

4x = 88

x = 22

The youngest one is 22.

The oldest one is

x + 3 = 22 + 3 = 25

Answer: 25

Factor the expression using 3 as one factor. 3x−30

Answers

Answer:

3(x - 10)

Step-by-step explanation:

3x - 30 = 3(x - 10)

Hii!

__________________________________________________________

Answer:

3(x-10)

Step-by-step explanation:

Note that both terms, 3x and -30, have a 3 in common. This is called the greatest common factor, or g.c.f.

The g.c.f. of 3x and -30 is 3. So we divide both 3x and -30 by 3, and obtain

x-10

Put parentheses around x-10

(x-10)

Next, put 3 outside the parentheses

3(x-10)

Hope that this helped! Best wishes.

Does this table represent a function? Why or why not?
A. Yes, because the y-values are positive numbers
B. No because each x value is different
C. No because none of the y values are the same
D. Yes because every x value corresponds to exactly one y value

Answers

Answer:

D) Yes, Because every x-value corresponds to exactly one y-value

Step-by-step explanation:

I did this, got it correct

3(3v-5) = 39
Simplify your answer as much as possible.

Answers

Answer:

v = 6

Step-by-step explanation:

Given

3(3v-5) = 39

So,

3v - 5 = 39 / 3

=> 3v - 5 = 13

=> 3v = 13 + 5

=> 3v = 18

=> v = 18 / 3

=> v = 6

#HopeItHelps

Answer:

V=6

Step-by-step explanation:

Hope this helped! :)

Simplifying

3(3v + -5) = 39

Reorder the terms:

3(-5 + 3v) = 39

(-5 * 3 + 3v * 3) = 39

(-15 + 9v) = 39

Solving

-15 + 9v = 39

Solving for variable 'v'.

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

Add '15' to each side of the equation.

-15 + 15 + 9v = 39 + 15

Combine like terms: -15 + 15 = 0

0 + 9v = 39 + 15

9v = 39 + 15

Combine like terms: 39 + 15 = 54

9v = 54

Divide each side by '9'.

v = 6

Simplifying

v = 6

Joey learns a total of 14 appetizer recipes over the course of seven weeks. After how many weeks of school will Joey know a total of 16 appetizer recipes. Solve using unit rates

Answers

Answer:

8 weeks

Step-by-step explanation:

14 appetizer recipes over the course of 7 weeks means she learns 2 recipes in 1 week so this means it will take her 8 weeks to learn 16 recipes. (Double check to make sure I'm correct)

If billy has 20 undex card then cut them in half would that be a physical or chemical change?

Answers

Answer:

Physical

Step-by-step explanation:

Cutting the cards in half just changes what they look like, not what they are. Changing what they are would be a chemical change.

Answer: physical change

Step-by-step explanation:

Your parents are allowing you to purchase new clothes for school. You go to Hollister, where shirts are all on sale for $24.00 and jeans are all on sale for $35.00. After trying on some clothes, you check out and leave the store with 13 things in your bag and a receipt that says that you spent $367.00. How many shirts and jeans did you buy?

Define the variables: x= ___________ y=________

Equation #1:______________
Equation #2:______________

Solution: _____________

Answers

Answer: 8 shirts 5 jeans

Step-by-step explanation:

A person walks 1/7 mile in 1/12 hour. the persons speed is _ miles per hour

Answers

Answer the a person walked 1.344 per 1/12

Step-by-step explanation:

I NEED HELP FAST PLEASE :)

Answers

Answer:945

Step-by-step explanation:

Unit 8: Right Triangles & Trigonometry Homework 2: Special Right Triangles...Please Help!

Answers

Where is the question?

Please anyone help please ASAP

Answers

Answer:

Angle WTS will be 180 degree minus 15x. You can write this as an expression:

180-15x

Now you have an expression for each angle in the triangle. Triangles will always have 180 degrees in them. You can add the expressions together and set it equal to 180. Then you can solve the equation for the x variable.

Step-by-step explanation:

Angle SWT + angle WTS + angle TSW = 180 degrees

Replace each angle with the expression then solve.

Answer:

x=7.90 x≈8

Step-by-step explanation:

they are alternate interior angles

so: 7x+6+15x=180

22x+6=180

22x=174

=7.9090......

you can double check my work

Find the percentage of the following:

1.25% of 60
2.75% of 20
3.20% of 10
4.50% of 100
5.5% of 30

Answers

1.)0.75
2.)15
3.)2
4.)50
5.)1.5

what is the midpoint between (1,5) and (7,-3)

Answers

Answer:

(4,1)

Step-by-step explanation:

[tex]Midpoint=(\frac{x_{1}+x_{2}}{2},\frac{y_{1}+y_{2}}{2})\\[/tex]

[tex]=(\frac{1+7}{2},\frac{5-3}{2})\\\\=(\frac{8}{2},\frac{2}{2})\\\\=(4,1)[/tex]

the answer for this problem would be 4,1

what is 512.3 divded by 100

Answers

Answer:

the answer is 5.123

Step-by-step explanation:

have a good day <3

Answer:

5.123

Step-by-step explanation:

Just need to move the decimal two times to the left because there are two zeros.

if you answer i will give brainliest.
148.5 ÷ 6 =?

Answers

Answer:

Step-by-step explanation:

24.75

Answer:

148.5/6=24.75

Calculate the value of (6.72 x 10^5) + (3.2 x 10^4)
Give your answer in standard form.

Answers

Answer:

7.04× 10^5

Step-by-step explanation:

6.72 x 10^5= 6.72 x 10^(4+1)= 6.72 x 10^1 ×10^4

= 67.2 x 10^4

(67.2 x 10^4)+ (3.2 x 10^4)

(67.2+3.2) × 10^4 = 70.4 × 10^4

7.04× 10^5

Answer:

7.04× 10^5 Step-by-step explanation:

2. What is the polynomial function of least degree with integral coefficients that has zeros 2 and 3i?
A. y = x - 2x2 - 9x + 18
B. y = x3 - 2x2 + 9x - 18
C. y = x2 - 5x - 6
D. y = x2 + x - 6

Answers

I think the answer is c because it makes a lot of sense

Greg and Carl work at neighborhood car wash facilities and are paid daily. Greg is paid $25 a day plus $7 for each car he washes. Carl earns the same amount per car washed, but his total earnings in a day are always $6 more than Greg's. Which equation expresses the total amount, t, that Carl earns, as a function of the cars he washes, c?
A)t=19+7c
B)t=25+7c
C)t=31+7c
D)t=25+13c

Answers

Answer:

Answer: It's easy, compare the same answers.

Step-by-step explanation:

A. 19+7= 16

B. 25+7= 32

C. 31+7= 38

D. 25+13= 38

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