Mathematics High School

please does anyone know the correct answer choice!?!?

Answers

Answer 1

Answer:

I believe the answer would be b

Step-by-step explanation:

Solve equation 1 for the variable y

y = -5x

Plug this in for variable y in equation

4•(-5x) + 12x = 16

- 8x = 16

Solve equation 2 for the variable x

8x = - 16

x = - 2

so far we know this

y = -5x

x = -2

Use the x value to solve for y

y = -5(-2) = 10

which would give us the answer B

Related Questions

What is 30% off $14.16

Answers

The answer to that is 9.91

Answer:

Step-by-step explanation:

14.16*30%= 4.248 or 4.25 off

3(x+1)-2x=-6
Slove this

Answers

Answer:

x = -9

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define Equation

3(x + 1) - 2x = -6

Step 2: Solve for x

Distribute 3: 3x + 3 - 2x = -6Combine like terms: x + 3 = -6Isolate x: x = -9

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x: 3(-9 + 1) - 2(-9) = -6Add: 3(-8) - 2(-9) = -6Multiply: -24 + 18 = -6Add: -6 = -6

Here we see that -6 does indeed equal -6.

∴ x = -9 is the solution to the equation.

1. A Baltimore passenger train traveled 80 miles in 1.5 hours. What was the average speed of the train? 50mph

Answers

Answer:

53.33 miles per hour

Line L is shown in the coordinate plane. a. What are the coordinates of points and ? b. Is the point (16,20) on line L ? Explain how you know. c. Is the point (20,24) on line L? Explain how you know. d. Is the point (80,100) on line L? Explain how you know. e. Write a rule that would allow you to test whether (, ) is on line L.

Answers

Answer:

so its will be the equal number

Step-by-step explanation:

pls dont get mad if I'm wrong I tried :)

Please help me!!!!!!

Answers

Answer:

C.) y=-2/3+4

Step-by-step explanation:

You can look at the y-intercept to find the equation really quickly!

For example, the line crosses the y-axis at the value of 4, therefore, the y-intercept is 4.

The only option with a y-intercept of 4 is C

Can someone please help me
Which value is equivalent to the expression 3^(-3)? *
A.1/27
B.1/9
C.-9
D.-27

Answers

Answer:

A. 1/27

Step-by-step explanation:

Please help me I have no idea what I am doing.

Answers

Step-by-step explanation:

c because if you times 8 into a that equals 10, b =6-3

What is the solution to this equation? 7x + 3 = 10x - 5.4 Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.

Answers

Answer:

Step-by-step explanation:

7x + 3 = 10x - 5.4

Bringing like terms on one side

3 + 5.4 = 10x - 7x

8.4 = 3x

8.4/3 = x

2.8 = x

Will give the brainiest!!
The graph below shows a line segment XY:

HERE ARE THE MULTIPLE CHOICE ANSWERS: What is the slope of the line segment XY?

−2
− 1 over 2
1 over 2
2

Answers

-2. The slope of a function is measured by rise over run. The rise from one point to another is 2 but the run goes towards the left 1 meaning it is negative. 2/-1=-2

A patient requires a 30% decrease in the dosage of his meds. His current dose is 340 mg. What will his dosage be after the decrease?

Answers

Answer:

238 mg

Step-by-step explanation:

340 x 0.30 = 102

340 - 102 = 238

what's 10× 10 , will giving points out ?

Answers

Answer:

100

Step-by-step explanation:

10 puls 10 10 times lol

100

Explain

Just plus 10 ( 10 times

What is the common ratio for this sequence? 40, 36, 32.4, 29.16 A) 1.1 B) 0.5 C) 2.2 D) 0.9

Answers

Hope this might help u

Answer:

D) 0.9

Step-by-step explanation:

The common ratio of a sequence is the amount you multiply a term by to get the next one. To find this number divide the second term by the first term, so 36/40. This will give you 0.9, to check your answer take the first term and multiply it by the common ratio a few times; you should get the exact sequence listed in the question.

Which expression is equivalent to (8x – 20) + (-4x + 12)?

A. 12x + 8

B. 4x – 8

C. – 4x – 8

D. – 4x

Answers

Answer:

B. 4x-8

Step-by-step explanation:

I need help it khan 4q+3+2q-1

Answers

Answer: 6q + 2

Step-by-step explanation:

please help!:)
simplify the complex fraction -9/10 1 3/5

Answers

Answer:

It equals -1 11/25

Step-by-step explanation:

An ammonia and water mixture fills a five-gallon container. Eighty percent of the mixture is ammonia, but some of the mixture will be drained and replaced with pure water. If a five-gallon mixture of fifty percent ammonia is desired, how many quarts of the mixture need to be drained before the water is added, given that 4 quarts equals a gallon

Answers

Answer:

The volume of the 80% ammonia that is to be drained before water is added is 7.5 quartz

Step-by-step explanation:

The volume of the ammonia and water mixture = 5 gallons

The percentage of ammonia in the mixture = 80%

The volume of ammonia desired = 5 gallons

The percentage concentration of ammonia desired = 50%

The diluting solution = Pure water

The measure of 4 quarts = 1 gallon

Therefore, we have, by equivalence solutions;

80% × x gallon = 50% × 5 gallons

x gallon = 50% × 5 gallons/(80%) = 3.125 gallons

x = 3.125 gallons

The volume of the 80% ammonia that is to be drained = 5 gallons - 3.125 gallons = 1.875 gallons

4 quarts = 1 gallon

1 gallon = 4 quarts

∴ 1.875 gallons = 4 × 1.875 quartz = 7.5 quartz

The volume of the 80% ammonia that is to be drained before water is added = 7.5 quartz

Answer:

7.5

Step-by-step explanation:

Find the circumference of the given circle use 3.14 pie and 7 in diameter

Answers

Answer:

43.98

Step-by-step explanation:

2piR

BTW the 7 is the radius not the diameter

Count the left-handed and right-handed spirals on the cacti in the photograph.
You should get two consecutive terms of the Fibonacci sequence. What are
the numbers?
A. 34 and 55
B. 5and 8
C. 21 and 34
D. 13 and 21
E. 8 and 13

Answers

Answer:

2 = 1 + 1

3 = 2 + 1

5 = 3 + 2

8 = 5 + 3

13 = 8 + 5

21 = 13 + 8.

Fibonacci numbers are found in many structures in nature.

We have just found that these cacti enclose Fibonacci numbers 13 and 21.

13 and 21

Step-by-step explanation:

Edgar is scuba diving 50 feet below the water. He is swimming to the surface at a rate of 3 feet per second. Write an equation to represent his depth, d, after s seconds.

Fill in the blank
d = __ s + __
(also to understand better we are doing the equation y = __ x + __ )

Answers

Answer:

I know this is late but the actual answer is d=3s+-50

Step-by-step explanation:

The reason is because he is swimming down, so yeah.

please help me, this isn't a test or quiz I just need some help.

Answers

the right is answer is B) alternate exterior

Cuanto es 17 entre un medio

Answers

Answer: 8.5

Step-by-step explanation:

espanol- deberia ser 8.5

english- it should be 8.5 good luck!

Factor the polynomials x^2 + 15x + 56

Answers

Final Answer: [tex](x + 7)(x + 8)[/tex]

Steps/Reasons/Explanation:

Question/Given: Factor the polynomials [tex]x^{2} + 15x + 56[/tex]

Step 1: Ask: Which two numbers add up to [tex]15[/tex] and multiply to [tex]56[/tex]?

[tex]7[/tex] and [tex]8[/tex]

Step 2: Rewrite the expression using Step 1.

[tex](x + 7)(x + 8)[/tex]

~I hope I helped you :)~

Which set of transformations would prove triangle QRS ~ triangle UTS?? Help!

Answers

Answer:

A or the first one

Step-by-step explanation:

Only answer that has dialate (which makes the triangle bigger) and the other answers have translate which just move the triangle so you can eliminate them quickly

Please help 20 points and brainliest
Which of the following groups of numbers is in order from least to greatest?

0.54, 7/10, 40%
3/4, 0.8, 94%
67%,1/2 , 0.8
7/10, 0.54, 67%

Answers

Answer: the last second one: 3/4 0.8 94%

Step-by-step explanation:

because 3/4 is smaller than one so it has to go first.

hope it helps :) pls give brainliest

3/4, 0.8, 94%

DO IT HES RIGHT

What is the value of N in the expression below

Answers

Step-by-step explanation:

please mark me as brainliest thank you

Subtract
-b + 3 from – 116 – 4

Answers

Answer:

-123-b

Step-by-step explanation:

-116-4-(b+3)

-123-b

3x + 10 =1 A:x=6B=X=3 C:x=-3

Answers

Answer:

x = -3

Step-by-step explanation:

3x + 10 -10 = 1 - 10

3x = -9

3x / 3 = -9/3

x = -3

A truck driver is trying to decide between two jobs offers. Driving company A offers pay for $600 per week, plus $0.15 per mile driven. Driving company B offers $700 per week, plus $0.10 per mile driven. The truck diver wants to know how many miles would they need to drive in a week to be making the same amount between the 2 companies.

Answers

Answer:

$1,202

Step-by-step explanation:

There ya go

PLEASE HELP I WILL GIVE BRAINLIEST!!

Answers

Answer:

The answer to the chart is y=x-1

The point-slope form of the equation of the line that passes through (-4,-3) and (12, 1) is y-1=1/4(x-12). What is
the standard form of the equation for this line?
x - 4y = 8
O x - 4y=2
4% - y = 8
O 49 - y = 2

Answers

Answer:

The answer is: x-4y=8

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