PLease hurry! i need it! And the testing thing is happening, so before 6 pm?

PLease Hurry! I Need It! And The Testing Thing Is Happening, So Before 6 Pm?

Answers

Answer 1

Answer:

y = 6

Step-by-step explanation:

Given system of equations:

[tex]\begin{cases}-x+3y=9\\y = \dfrac{2}{3}x\end{cases}[/tex]

Step 1: Substitute the second equation into the first and solve for x.

[tex]\\\implies -x+3\left(\dfrac{2}{3}x\right)=9\ \textsf{[ Multiply. ]}\\\\\implies -x+2x=9\ \textsf{[ Combine like terms. ]}\\\\\implies \boxed{x=9}[/tex]

Step 2: Substitute 9 as the value of x in any equation and solve for y.

[tex]\\\implies-9+3y=9\ \textsf{[ Add 9 to both sides. ]}\\\\\implies -9+9+3y=9+9\\\\\implies 3y=18\ \textsf{[ Divide both sides by 3. ]}\\\\\implies \dfrac{3y}{3}=\dfrac{18}{3}\\\\\implies \boxed{y=6}[/tex]

The solution to the given system of equations is (9, 6).

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Related Questions

Identify the parent function of f(x)=-3x^3-3

Answers

Answer:

  f(x) = x^3

Step-by-step explanation:

To identify the parent function, replace any added constants with 0, and replace any constant multipliers with 1. Doing that gives you ...

  f(x) = 1·x^3 -0

  f(x) = x^3 . . . . . . the parent function

Can anyone help in this question, thanks​

Answers

Answer:

Sorry I can only help you in 5a. The answer is 70 degrees because it is a central angle. The measure of an arc and a central angle is the same.

Step-by-step explanation:


Select the expressions that are equivalent to 2q + 8q.
q • 10
10q
q +9q
q + q+ 8q

Answers

Answer:

10qq +9qq + q+ 8q

Step-by-step explanation:

We know that, when combining 2q + 8q we'll get → 10q

1) q • 10 (Nope)

2) 10q (yes, It's equivalent)

3) q +9q (combine) → 10q (yes, It's equivalent)

4) q + q+ 8q (combine) → 10q ( yes, It's equivalent)

So therefore, 10q , q +9q, q + q+ 8q are expressions equivalent to 2q + 8q..

~

Hope this helps!

f(x)=12x-8. evaluate f(-7)

Answers

f(x)=12x-8

f(-7)=12(-7)-8

f(-7)= -84-8

f(-7)= -92

sophia has 7m of ribbon to help decorate a room. she will cut pieces of ribbon that are each r inches long. (1in.=2.54cm) which expression can help find the number of pieces of ribbon that she will have

Answers

Step-by-step explanation:

1 m (meter) is 100 cm (centimeters).

so, 7 m is 700 cm.

each piece is r × 2.54 cm long (as every inch is 2.54 cm).

so,

number of pieces = 700 / (r × 2.54)

The number of species can find by expression is

700 / (r × 2.54)

We have given that

Sophia has 7 m of ribbon

she will cut pieces of ribbon that are each r inches long.

We have to calculate the number of pieces of ribbon that she will have

What is the value of 1 meter in cementer?

1 (meter) =100 (centimetres).........(1)

multiply both side by 7

7 m is 700 cm.

each piece is

r × 2.54 cm long ..................(as 1 inch is 2.54 cm).

so,

[tex]number of pieces = 700 / (2.54r)[/tex]

Therefore the number of species can find by expression is

700 / (r × 2.54)

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If 600 people were surveyed in order to make this pie chart, how many people say they take the bus? 20 points

Answers

Answer:

if 600 people were surveyed it means that 10% equals 60 since 60x10=600. Since we now know that 10% is 60, this would mean that 20% is 120. meaning that 120 people took the bus

Simplify each and write it as a mix number

12/14

27/90

Answers

Step-by-step explanation:

Divide 12/14 by 2:

[tex]\frac{12 \div 2}{14 \div 2} =\frac{6}{7}[/tex]

Simplified. Can't be a mixed number, less than 1.

Divide 27/90 by 9:

[tex]\frac{27 \div 9}{90 \div 9} =\frac{3}{10}[/tex]

Simplified. Can't be a mixed number, less than 1.

I need help finding the area for the given shape.

Answers

Step-by-step explanation:

a = ½bh

a = ½ × 3 × 6

a = ½ × 18

a = 9 in²

Answer:

18in

Step-by-step explanation:

6×3=18

hope its help

Joy and Willa left $3 each for a tip on a $44 restaurant bill. They are sharing the bill. How much does each person owe??

Answers

Work:

44-6= 38/2= 19

They each owe $19 if they each pay $3 tip.

We minus total by the tip and divide this by 2.

Hope this helps!

4. Emily's house has a chimney. What is the
volume of her chimney?
4 in.
9 in.
12 in.
3 in.
4 in.
6 in.
Giving brainliest! Tysm!

Answers

Answer:

130 in will be the correct answer

log(8(1 + 3x))
I need help, I have looked at multiple examples and going off of that I get log(2)+log(1+3x)

Answers

The answer would be 8+24x because you are just using distributive property.

−3 and 7/10 ​/ 2 and 1/4​

Answers

Answer:

Step-by-step explanation:

(7/10 + -3)/(2 + 1/4)

(7/10 - 30/10)/(8/4 + 1/4)

(-23/10)/(9/4)

-2.3/2.25

-0.46/0.45 or -1.02 approximately

Answer:

Reduce the expression, if possible, by cancelling the common factors.

Exact Form:

[tex]\frac{74}{45}[/tex]

Decimal Form:

−1.64

Mixed Number Form:

−1 [tex]\frac{29}{45} \\[/tex]

Step-by-step explanation:

branliest

Using the unpaid balance method, find the current months finance charge on a credit card account having the following transactions.
Last month’s balance: $385
Last payment: $250
Annual interest rate: 21%
Purchases: $303
Returns: $158
(It would be great if you could tell me how to use the formula I=Prt where previous months balance + finance charge + purchases made - returns - payments)

Answers

Answer:

$5.02

Step-by-step explanation:

The unpaid balance method is a common method used by credit card companies to calculate finance charges. It determines the finance charge based on a portion of the previous balance you have not yet paid.

Equations to use:

[tex]\boxed{\begin{minipage}{9.7cm}\phantom{w}\\Periodic (monthly) rate = annual interest rate $\div$ 12\\\\Finance Charge = previous balance $\times$ periodic rate\\\\Unpaid Balance = previous balance + finance charge +\\\phantom{wwwwwwwwwww} new purchases - returns - payments\\\end{minipage}}[/tex]

The periodic rate is the interest rate charged over a certain number of time periods. The interest on a credit card is usually calculated monthly, so if the annual interest rate is 21%, then the periodic (monthly) rate is:

[tex]\text{Periodic Rate}=\dfrac{21\%}{12}=1.75\%=0.0175[/tex]

The unpaid balance is "last month's balance", which is $385.

Calculate the finance change by multiplying the previous balance (last month's balance) by the periodic rate:

[tex]\begin{aligned}\text{Finance change} &=\rm previous\; balance \times periodic\;rate \\&=\$385 \times 0.0175 \\&= \$6.7375\end{aligned}[/tex]

Calculate the unpaid balance by subtracting the returns and payments from the sum of the previous balance, finance charge and new purchases:

[tex]\begin{aligned}\rm Unpaid \; Balance &= \rm previous\; balance + finance\;charge +new \;purchases\\&\phantom{=w}\rm - returns - payments\\&= \$385 + \$6.7375 + \$303 - \$158 - \$250 \\&= \$286.7375\end{aligned}[/tex]

Finally, to calculate the current month's finance charge, multiply the unpaid balance by the periodic rate:

[tex]\begin{aligned}\text{Current month's finance charge}&=\rm unpaid \;balance\times periodic \;rate\\&=\$286.7375 \times 0.0175 \\&= \$5.02\; \text{(nearest cent)}\end{aligned}[/tex]

Therefore, the current month's finance charge is $5.02 to the nearest cent.

can I have help pls

Answers

Answer:

1. b

2. a

3. a

Step-by-step explanation:

1. the answer is x=7

2 and 3 answer is x = R which isn't really a real solution

Answer: it is right same exact test i did

(Show in number line): 2x<x+7​

Answers

Solve for
x
x
by simplifying both sides of the inequality, then isolating the variable.
Inequality Form:
x
<
7
x
<
7
Interval Notation:
(


,
7
)

What are the coordinates of vertex N after this translation? * Quadrilateral LMNP is translated 4 units up and 2 units right. ​

Answers

Answer:

A

Step-by-step explanation:

because

I really really need help pls

Answers

Answer:

  (c)  r units right

Step-by-step explanation:

The translation transformations are ...

  g(x) = f(x -h) +k . . . . . . . shifts h units right and k units up

Your transformation has h=r and k=0, so the graph is shifted r units right and no units vertically.

_____

Additional comment

This in not terribly mysterious. Suppose you have f(1) = 6. This means the point (1, 6) is on the graph.

Now, suppose you transform this to ...

  g(x) = f(x -2)

When the value of x is 3, the value of g(x) is f(3-2) = f(1) = 6. That means the point (3, 6) is on the graph of g(x).

It is the same as the point (1, 6) on the graph of f(x), but shifted 2 units to the right.

__

You can shift a function r units right by replacing x with (x-r), as we just discussed. You can shift a function u units up by replacing y with (y-u). When we write equations in "functional form", the "u" gets "moved."

  y-u = f(x) . . . . . graph of f(x) shifted u units up

  y = f(x) +u . . . . graph of f(x) shifted u units up. (u added to both sides of the above equation)

Please Factor -5x²+13x+6

Answers

Answer:

[tex](x-3)(-5x-2)[/tex]

or [tex]-(x-3)(5x+2)[/tex]

Step-by-step explanation:

quadratic equation format: [tex]a^2+b^2+c[/tex]

Therefore, for  [tex]-5x^2+13x+6[/tex],  a = -5, b = 13 and c = 6

Multiply the coefficient of [tex]x^2[/tex] ([tex]a[/tex]) by the constant term ([tex]c[/tex])
[tex]\implies -5 \times 6 = -30[/tex]

Find two numbers which have a product of -30 and a sum of [tex]b[/tex] (13)

Factors of 30:  1 and 30, 2 and 15, 3 and 10, 5 and 6

So -2 and 15 have a product of -30 and sum of 13.

Rewrite  [tex]13x[/tex]  as  [tex]15x-2x[/tex]  and substitute into the equation:

[tex]\implies -5x^2+15x-2x+6[/tex]

Factorize the first two terms and the last two terms separately:

[tex]\implies-5x(x-3)-2(x-3)[/tex]

The bracket created should always be the same.

The two brackets have now been found. The first bracket is the common factor of (x - 3). The second bracket is the factorized terms outside of each bracket (-5x - 2).

[tex]\implies (x-3)(-5x-2)[/tex]

Additionally, we can write (-5x - 2) as -(5x + 2)

[tex]\implies -(x-3)(5x+2)[/tex]

Two right triangles are proportional. The shortest leg of the small triangle is 4 in and the hypotenuse is 12 in. The shortest
leg of the large triangle 8 in. Find the length of the hypotenuse of the large triangle.

A.12
B.21
C.20
D.24

Answers

Answer:

D)  24

Step-by-step explanation:

scale factor is 2

since 4 x 2 is 8 then 12 x 2 is 24

Mai got a prepaid debit card with 30 on it. For her first purchase with the card, she bought some bulk ribbon at a craft store. The price of the ribbon was 23 cents per yard. If after that purchase there was 27.01 left on the card, how many yards of ribbon did Mai buy?

Answers

Answer:

The answer I got was 13.

Step-by-step explanation:

I first did 30-27.01 to get 2.99.

I then divided 2.99 by 0.23 or 2.99/0.23 to get 13.

Hope this helped any!

Becky's brother forgot about the fees that his investment account was charging him! He is charged 2% off the annual rate of return as an account management fee. Including the fee, about how much longer will it take him to double his money?

Answers

The number of years it would take to double his money is 34.7 years.

How long would it take to double his money?

The formula that can be used to determine time is:

Number of years =  In(FV/PV) / r

Where:

FV = future valuePV = present valuer = interest rateFV / PV = 2

In2 / 0.02 = 34.7 years

To learn more about doubling time, please check: https://brainly.com/question/25770999

Can you help me this​

Answers

Answer:It’s A: Population.

Step-by-step explanation:

Im back again... and i need help. sorry but im doing a second attempt for math and its on geometery and i hate geometery

Answers

Answer: 1/3

Step-by-step explanation:

The scale factor is 1/3 because each side of figure B is 1/3 the magnitude of figure A.

3:1 because for every three units of the larger triangle, there’s only one for the smaller

The function y = 2 • 1.5n models the value of a certain stock after n years. What is the recursive formula that models the situation?

Answers

Answer:

aₙ= 1.5aₙ₋₁ with a₁= 3

Step-by-step explanation:

recursive formula is represented by aₙ=b· aₙ₋₁

Evaluate each expression.


Answers

Answer:

Evaluate each expression:

Answer:

5 = 10

6 = 13

7 = 5

8 = 17

Step-by-step explanation:

5.

1: simplify

[tex]\sqrt{8^2+6^2}[/tex]

2: take both to power

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

3: sqrt

[tex]\sqrt{100} = 10[/tex]

6.

1: simplify

[tex]\sqrt{5^2+12^2}[/tex]

2: take both to power

[tex]\sqrt{25+144}[/tex]

3: sqrt

[tex]\sqrt{169} = 13[/tex]

7.

1: simplify

[tex]\sqrt{4^2+3^2}[/tex]

2: take both to power

[tex]\sqrt{16+9}[/tex]

3: sqrt

[tex]\sqrt{25} = 5[/tex]

8.

1: simplify

[tex]\sqrt{15^2+8^2}[/tex]

2: take both to power

[tex]\sqrt{225+64}[/tex]

3: sqrt

[tex]\sqrt{289} = 17[/tex]

I need help on a question i don't know!

Answers

Answer:

20:4

Step-by-step explanation:

got it for u

URGENT PLEASE HELP

Assume the graph of a function of the form y = acos(k(x-b)) is given below.
Which of the following are possible values for a, k, and b?
-4
F3
-
he
T

3x
4
4
2.
-1
12
O A. a = 4, k= 2, and b = -
4
O B. a = 2, k = 4, and b = ?
4
O c. a = 4, k = 2, and b =
4
O D. a = 4, k = 2, and b = ?
4

Answers

The possible values of for a, k, and b from the graph of the function will be D. a=4, k=2, b= pi/4.

What is a function?

A function simply means a relation between the set of inputs and the outputs.

A function from set X to set Y assigns each element of X to Y. In this case, the set X is the domain while the set Y is the codomain.

From the graph attached, it can be seen that the values of for a, k, and b from the graph of the function will be a=4, k=2, b= pi/4.

Learn more about functions on:

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8. How tall do the people in your immediate
and extended family tend to be?

Answers

Answer:

maybe 5,5-6 foot. don't really keep track I just know they are almost as tall as me

8.91203 to the nearest whole number =

Answers

9 would be the answer
9 is the answer!! I hope it helps!

What is the combined weight if the 3/4 lb bags

Answers

the answer would be 3.175 kg
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