Solve the following system of equations using the elimination method. 9x – 5y = –16 and –3x + 7y = –16
A)

(–4,–4)

B)

(–2,–3)

C)

(4,4)

D)

(0,–5)

Answers

Answer 1
B) (-2,-3) you have to multiply one of the equations to eliminate one of the numbers..i multiplied -3x+7y=-16 by -3.
Answer 2

Answer (-2,-3)

Step-by-te exnation:

multiply the equation by number


Related Questions

The members of a crew team can weigh no more than 165 pounds each. Write an INEQUALITY for the acceptable weights. Graph the solutions.

Answers

Answer:

shut up b

sorry gad will elp you

Step-by-step explanation:

2b-m=5 what is the solution for m

Answers

Answer:

m = -5 + 2b

Step-by-step explanation:

2b - m = 5

-2b    -2b

-m = 5 - 2b

-1         -1

5 ÷ -1 = 5

-2b ÷ -1 = 2b

m = -5 + 2b

what is 5 1/6 - 7 1/3

Answers

Answer:

-13/6 or -2 and 1/6 or -2.16

Step-by-step explanation:

The solution of expression in mixed fraction form is,

⇒ 2 1/6

We have to simplify the expression,

⇒ 5 1/6 - 7 1/3

Firstly we can change it into improper fraction,

⇒ 5 1/6 - 7 1/3

⇒ 31/6 - 22/3

Make denominator same by taking LCM of 6 and 3 which is 6,

⇒ 31/6 - 44/6

⇒ (31 - 44) / 6

⇒ 13/6

⇒ 2 1/6

Therefore, The solution of expression in mixed fraction form is,

⇒ 2 1/6

Learn more about the divide visit:

https://brainly.com/question/28119824

#SPJ6

The Hu family goes out for lunch, and the price of the meal is $42. The sales tax on the
meal is 6%, and the family also leaves a 20% tip on the pre-tax amount. What is the
total cost of the meal?

Answers

Answer:

The total cost of the meal was $52.92.

Step-by-step explanation:

Find the amount of tax:

[tex]42 * 0.06 = 2.52[/tex]

Find the amount of tip:

[tex]42 * 0.20 = 8.4[/tex]

Add the cost of the meal, tax and tip to find total cost:

[tex]42 + 2.52 + 8.4 = 52.92[/tex]

The Lugar family spends spring break camping. The campground charges a $5 entrance fee plus $10 per night to camp in the park. Which of the following graphs best represents the relationship between the number of nights the Lugar family camps and the cost?

Answers

Answer:

(0,5) , (1,15) , (2,25) , (3,35) , (4,45) {the cords for the answer because it might be different for you. Also this is not a straight line they are dots.

Step-by-step explanation:

For one night, you have to pay $5 for an entry fee, and $10 for a night. Which means its $15 for one night. This increases every night.

What is the estimated product?

86 × 32

Answers

Answer:

2,752

Step-by-step explanation:

86x32 = 2752

Product: It means to multiply.

Answer:

I believe the estimated product is 2749

PLEASE HELP!!Choose the slope and y-intercept that
correspond with the graph.

Answers

the answer is -1/3 y-incercept= -1

Answer:

The first one

Step-by-step explanation:

It’s y intercept is 1 and the slope is 1/3 because it goes up one and to the left 3 . I know it’s negative because it’s going down to the right.

Delta owns a D.C. 10 airplane that has seats for 318 people. The company flies this airplane only if there are at least 96 people on the plane. Write a compound inequality to show the possible number of people on a Delta flight. Let n represent the amount of people.

Answers

Answer: n greater than or equal to 96 or n is greater than or less than 318

Step-by-step explanation:

Brainliest plz

A plane flies at an altitude of 3.5 kilometers and then starts to descend when it is 60
kilometers from the runway. What is the angle of depression for the descent of the plane?
Round to the nearest degree.

Answers

Answer:

Angle of depression = 3.37°

Step-by-step explanation:

We are told that A plane flies at an altitude of 3.5 kilometers and then starts to descend when it is 60

kilometers from the runway.

I've attached an image of a triangle depicting this question.

From the triangle, we can find the angle of depression θ from trigonometric ratio since it's a right angle triangle.

Thus;

3.5/60 = tan θ

tan θ = 0.0583

θ = tan^(-1) 0.0583

θ = 3.37°

Original price: $264.91
Markdown: 79%
The sale price is $

Answers

264.91 times .79 is 209.2789
Subtract 209.2789 from 264.91 is 55.6311
The sale price is $55.63

Rectangle ABCD with coordinates A(1, 1), B(4, 1), C(4, 2), and D(1, 2) dilates with respect to the origin to give rectangle A'B'C'D'. If = 6, what is the scale factor of the dilation? A. 6 B. 3 C. 2 D. E. 4

Answers

Answer:

A.

Step-by-step explanation:

Answer:

Answer is C. (2)

for PLATO

Step-by-step explanation:

A'B' = 2 * AB

Therefore, the dilation factor is 2.

The square of a number is 12 less than 7 times the number. What is the number? –4 or –3 –4 or 3 –3 or 4 3 or 4

Answers

Answer:

Answer: D (3 or 4)

Step-by-step explanation:

Make x the subject a=bx+c

Answers

Answer: [tex]x=\frac{a-c}{b}[/tex]

Step-by-step explanation:

Answer:

x = [tex]\frac{a-c}{b}[/tex]

Step-by-step explanation:

Given

a = bx + c ( subtract c from both sides )

a - c = bx ( isolate x by dividing both sides by b )

[tex]\frac{a-c}{b}[/tex] = x

32x+8+5=113 2x+8 +5=11 simplify in radical form

Answers

Answer:

The answer is in the picture below

Step-by-step explanation:

can u help me with my math

Answers

1b think

I am not sure

In triangle ABC, we can draw a perpendicular line segment from vertex C to segment AB. The intersection of AB and the perpendicular is called E. We know that BE is the shortest distance from B to and that is the shortest distance from A to CE because of the shortest distance theorem. Therefore, BC > BE and AC > AE. Next, add the inequalities: BC + AC > BE + AE. Then, BE + AE = BA because of the . Therefore, BC + AC > BA by substitution.

Answers

Answer:

CE..AE...Segment addition postulate

Step-by-step explanation:

i got these answers from the quiz

Answer:

1.A  

2.C

3.A

Step-by-step explanation:

Edgen2020

if f(x) = 4x+3, find f-1 (x)

Answers

Answer: x=1/4y + -3/4

Step-by-step explanation:

6. $15 lunch: 20% tip

Answers

a 20% tip would be $3

f/13 = 6.2 what is the value of f

Answers

Answer:

The value of f is 80.6.

Step-by-step explanation:

We are given the equation and asked to solve for f.

If we are given a fraction with a variable in the numerator, we can multiply both sides of the equation by the denominator to isolate it.

For example, if you look at this equation:

[tex]\displaystyle\frac{a}{26}=17.9[/tex]

We can multiply both sides by 26 to get the a by itself so the equation can be solved.

[tex]\displaystyle26\times\frac{a}{26}=17.9\times26\\\\a = 465.4[/tex]

Therefore, we can apply this same technique to the equation [tex]\frac{f}{13}=6.2.[/tex]

[tex]\displaystyle\frac{f}{13}=6.2\\\\13\times\frac{f}{13}=6.2\times13\\\\f = 80.6\ \text{or} \ \frac{403}{5}[/tex]

Therefore, the value of f is 80.6.

Answer:

f = 80.6

Step-by-step explanation:

Multiply both sides by 13.

f /13 =6.2

( f /13 )*(13)=(6.2)*(13)

f = 80.6

Is it possible for two numbers to have the same LCM and GCD? Explain. ​

Answers

Answer:  HCF and LCM of two numbers can be same only if two numbers are equal. Hence their difference will be zero

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

it just is

Which table of ordered pairs represents a proportional relationship?

Answers

Uhhhhhh hey!
we need to see the picture to know which table

Answer:

Insert the table

Step-by-step explanation:

There is no table above


What is the slope of a line that is perpendicular to a line that has a slope of -7

Please help ya girl out :))

Answers

C. 1/7
The slope of a perpendicular line will be the opposite of the first slope given. So since the first slope is -7 then we make the negative positive and flip the numerator and denominator. So -7/1 will be 1/7

A gardener measures the heights of 2 plants at the end of every week. The function y=3x+8.5 of plant A in centimeters at the end of x weeks. The function y=2.5x+14.5 gives the height of plant B in centimeters at the end of x weeks.

Answers

Answer: Plant A and plant B will be the same height at the end of week 12.

Step-by-step explanation: You don't care about this

If tan x = m, what is sin x in terms of m?​

Answers

Answer: m/sqrt(m^2)+1

Step-by-step explanation: if tan x = m, then the opposite angle is m and the adjacent angle is 1 so 1 squared plus m squared equals c squared. c = sqrt (1 + m^2)

sin x = opposite/hypotenuse = m/sqrt(m^2)+1

The value of sin x in terms of m is [tex]\frac{m}{\sqrt {m^2+1}}[/tex]

Trigonometry are identities used to express the sides and angles of a triangle.

According to SOH CAH TOA,

Tan θ = Opposite/Adjacent

Given that tan x = m

Opposite  = m

Adjacent = 1

Get the hypotenuse using the pythagoras theorem

Hyp² = Opp² + Adj²

Hyp² = m²+1²

Hyp² = m²+1

Take the square root of both sides

√Hyp² =√m²+1

Hypotenuse = √m²+1

Next is to get sin x:

Sin x = Opposite/Hypotenuse

Sin x = [tex]\frac{m}{\sqrt {m^2+1}}[/tex]

Hence the value of sin x in terms of m is

[tex]\frac{m}{\sqrt {m^2+1}}[/tex]

Learn more on trigonometry ratio here: https://brainly.com/question/13729598

What is the answer to this math problem; 12 5/6x-14x+ 1/6x

Answers

Answer: wyd are you mad at me

Answer: Who are

Step-by-step explanation:

one sixth of the students in a school marching band are in the percussion section, the percussion section has 6 students, how many students are in the marching band?

Answers

Answer:

36 students

Step-by-step explanation:

because if 1/6 is 6 students then you have to multiply the 6 by 6

Answer:Idk

Step-by-step explanation:

PLEASE HELP ME ??!!!!!

Answers

Answer:

um i am pretty sure it is c

Step-by-step explanation:

The strength of magnetic field inside a
long current carrying straight solenoid is

Answers

Answer:

Sorry i have forgotten about this, sorry i couldn't answer this

Which exponential function is represented by the graph?
O f(x) = 2( 1/2 )x
O f(x) = 1/2(2)x
O f(x) = 1/2(1/2)x
Of(x) = 2(2)x
PLEASE HELP MEE!

Answers

Answer:

f(x) = [tex]\frac{1}{2}[/tex] [tex](2)^{x}[/tex]

Step-by-step explanation:

Using the standard form of the exponential function

y = a [tex]b^{x}[/tex]

To find a and b , substitute ordered pairs from the graph

Using (0, 0.5 ), then

0.5 = a[tex]b^{0}[/tex] [

a = 0.5 , so

y = [tex]\frac{1}{2}[/tex] [tex]b^{x}[/tex]

Using (1, 1) , then

1 = [tex]\frac{1}{2}[/tex][tex]b^{1}[/tex] , thus

b = 2

f(x) = [tex]\frac{1}{2}[/tex][tex](2)^{x}[/tex] ← exponential function representing graph

Which relation is a function?(click all that apply)

Answers

Answer:

Step-by-step explanation:

y=2x+1

y=x^2

The other one isn't a function because it won't pass the vertical line test. You can not use the same X in a function.

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