Do not solve the system below. Its solution is (x, y)
= (1, 1). Instead, answer the questions.

3x + 4y = 7
5x + 10y = 15

If you were going to solve the system above, what
would be the best first step according to the
strategy you just learned?
Solve for x in the first equation.
Solve for y in the first equation.
Solve for x in the second equation.
Solve for y in the second equation.

explain your reasoning .

Answers

Answer 1
Answer:

(x,y) = (1,1)
Answer 2

Answer:

The answer is C

and the second answer is

Solving for x in the second equation produces a coefficient of 1 or –1. This choice avoids fractions. Each term in the second equation can be divided by 5. That makes x easy to isolate.


Related Questions

can some one help me solve this −5(p+5over3 )=−4

Answers

Answer:

I did this in my head so I'm not sure but I think it's -1/5=p

You score a 90% on your quiz. There were 20 total questions. How many did you answer correct?

Answers

Answer:

You would've gotten 2 questions wrong to score a 90%.

Step-by-step explanation:

   </3 PureBeauty

Answer:

18

Step-by-step explanation:

20×90/100

here u go fffffcv

Solve the system of equations -30 + 7y = -18 and 4x – 4y = 8 by combining
the equations.

Answers

the answer is (4/23,-42/23).
good luck!

Find the explicit formula.
-6, -26,-46,-66, ...​

Answers

Answer:

-20

Step-by-step explanation:

as you can see you can still see the 6s, whats the difference between 40 and 20? its 20, its like skip counting but negative, the answer couldve been "20" if it made the number go potitive but its negative so the answer is -20

Find the 8th term of the geometric sequence 5, -15, 45, ...5,−15,45,...​

Answers

Answer:

The 8th term of the geometric sequence 5, -15, 45, ... is:

[tex]a_8=-10935[/tex]

Step-by-step explanation:

Given the geometric sequence

5, -15, 45, ...

The first element of the geometric sequence is

[tex]a_1=5[/tex]

A geometric sequence has a constant ratio 'r' and is defined by  

[tex]a_n=a_1\cdot r^{n-1}[/tex]

computing the ratios of all the adjacent terms

[tex]\frac{-15}{5}=-3,\:\quad \frac{45}{-15}=-3[/tex]

The ratio between all the adjacent terms is the same and equal to

[tex]r=-3[/tex]

substituting [tex]a_1=5[/tex], and [tex]r=-3[/tex] in the nth term

[tex]a_n=a_1\cdot r^{n-1}[/tex]

[tex]a_n=5\left(-3\right)^{n-1}[/tex]

Determining the 8th term:

We have already got the nth term

[tex]a_n=5\left(-3\right)^{n-1}[/tex]

substituting n = 8 to determine the 8th term

[tex]a_n=5\left(-3\right)^{n-1}[/tex]

[tex]a_8=5\left(-3\right)^{8-1}[/tex]

[tex]a_8=5\left(-3^7\right)[/tex]

[tex]a_8=-5\cdot \:3^7[/tex]

[tex]a_8=-5\cdot \:2187[/tex]

[tex]a_8=-10935[/tex]

Therefore, the 8th term of the geometric sequence 5, -15, 45, ... is:

[tex]a_8=-10935[/tex]

3 multiplied by what gives me 55.50

Answers

Answer:

18.5

Step-by-step explanation:

Divide 55.5 by 3 (working backwards to find your answer)

Then you will get 18.5!

Answer:

18.5

Step-by-step explanation:

divide 55.5 by 3 and you get 18.5.

what is the unit price of $5.36 for 20 oz?

Answers

Answer:

5.36/20

0.268 dollars per oz

plz brainliest :)

do you want an explanation?

I’ll give brainiest
Determine if a triangle with side lengths 6, 8, and 12 is acute, right, or obtuse?

Answers

Answer:

obtuse

Step-by-step explanation:

hope this helps

and can you tell me if I was right or wrong?

A football coach moves 12 m north, then 16 m south, then 22 m north, and finally 6 m
south.
What is the displacement

Answers

Answer: Displacement=12 m north

Step-by-step explanation:

12 m north

Let’s assume

north= positive

south=negative

12+(-16)+22+(-6)=12

helpppppp it’s urgenttttttttt!!!!!

Answers

1the answer to your question is c

A must-have for any thrill seeker is a drop tower ride. The Precipice Plummet will stand 420 feet tall. The scale in your architectural diagrams is 1":40'. How tall will your drawing of Precipice Plummet be in inches? (do not include units in your answer, just the number

Answers

The answer is 10.5, but don't put 10.5 if it's just asking for the number and not the unit only put (10)!!!

pls help me for brainlest ASAP

Answers

The slope is 0

Because its not going up, the slope isn’t negative or positive so its moving but it isn’t rising so its 0. If it were going up but not side there would be no slope, but for this its 0

X(x+7)=0 solve whatever this id

Answers

Step-by-step explanation:

x(x + 7) = 0

By Zero Product rule,

either x = 0 or (x + 7) = 0.

=> x = 0 or x = -7.

Please help me with this problem, I'll give brainliest!!
And if you want even more points can you go to my profile, then go to QUESTIONS then if you know the answer to the one underneath this one could you help answer it THANK YOU SO MUCH

Answers

The answer is 4.32x10^5

ariana has $1.40 worth of nickels and dimes. she had twice as many nickels as dimes. determine the number of nickels and the number of dimes that ariana has

Answers

Answer:

Ariana has 7 dimes and 14 nickels

Step-by-step explanation:

Nickel = 0.05

Dime = 0.10

1.40 ÷ 2 = 0.70

7 x 2 = 14

because Adriana has twice the nickels as dimes and half of the 1.40 is dimes so the other half is nickels.

nickels x 2 = 14

John called a plumber to fix a leak in his bathroom. The
plumber charged $30 to come to the house and $25 an hour
while fixing the leak. If the final bill was $105, how many
hours was the plumber at John's house?

Answers

Answer:

3 hours

Step-by-step explanation:

$105 - $30 = $75

$75 ÷ $25 = 3 hours

A runner has a mass of 89 kg he produces aforce of 84 Newtons between the ground and his running shoes How fast does he accelerate

Answers

Force = mass × acceleration

acc= force / mass

84N/89kg

= 0.94m/s

The acceleration of the runner is 0.9 m/[tex]s^{2}[/tex].

We have a runner has a mass of 89 kg he produces a force of 84 Newtons between the ground and his running shoes.

We have to determine the acceleration of the runner.

What is the formula to calculate the force on a body ?

The force on a body is the product of mass and acceleration. Mathematically -

F = ma

According to the question, we have -

Force = 84 N

Mass = 89 Kg

Therefore -

F = ma

84 = 89 x a

a = 84/89 = 0.9 m/[tex]s^{2}[/tex]

Hence, the acceleration of the runner is 0.9 m/[tex]s^{2}[/tex].

To solve more questions on Force, visit the link below-

https://brainly.com/question/20841272

#SPJ2

In A ABC, m ZA = 36°, m ZB = 45°, and m ZC = 99º. Which statement
is true?
A. CA > BC > AB
B. BC > CA > AB
C. AB > BC > CA
D. AB > CA > BC

Answers

Answer:

The true statement is AB > CA > BCD

Step-by-step explanation:

In any triangle, the longest side in length is the opposite to the greatest angle in the measure, and the shortest side in length is opposite to the smallest angle in the measure.

Let us solve the question

ABC is a triangle

∵ m∠A = 36°

∵ m∠B = 45°

∵ m∠C = 99°

→ That means C is the greatest angle and A is the smallest angle

∴ ∠C is the greatest angle and ∠A is the smallest angle

∴ The arrange of the measures of the angles is m∠C > m∠B > m∠A

AB is the opposite side of ∠C

∴ AB is the longest side

BC is the opposite side of ∠A

∴ BC is the shortest side

CA is the opposite side of ∠B

∴ The arrange of the lengths of the sides is AB > CA > BC

The true statement is AB > CA > BC

Pentagon VWXYZ shown on the coordinate grld. A student reflected pentagon VWXYZ across the x -axis Which describes this transformation ?

Answers

Answer:

(x, y) --> (x, -y)

Step-by-step explanation:

Sorry for not explaining it :/  Good Luck!

Answer: I just took the test so the answer would be J. (x,y) --> (-x,y)

Step-by-step explanation: hope this helped thx for the points :D

What is the slop in the graph?

Answers

Answer:

-2/5

Step-by-step explanation:

rise/run you count how much it rises and how much it runs

Answer:

-2/5

Step-by-step explanation:

rise over run

simplify 4a X 6b -3c​

Answers

Try this:

24 abx - 3c

squares, cubes and circles

Answers

Answer:

Area of the square tile is 49 square inches.

Length of the one side of the square tile is :---

Length=√Area=√49=√7²=7 inches

Find two consecutive even integers whose sum is 86. Which of the following equations could be used to solve the problem?


4x = 86
2x + 1 = 86
2x + 2 = 86
x2 + 2= 86

Answers

Answer:

ucg

Step-by-step explanation:

Answer:

2x+1=86

Step-by-step explanation:

I think thats the answer, Im not sure though

10. Use substitution to solve the system of equations below.
- x + 2y = 5
3x - 5y =-11

Answers

Answer:

the answer for y is 4 and x is 3

y=4

x=3

Identify the translations of the graph of the parent function f(x) = x^2? that result in the graph of g(x) = (x + 2)2 + 6.

Answers

Answer:

x8

Step-by-step explanation: bacause if you see and look really close

The translations of the graph of the parent function [tex]f(x) = x^2[/tex]  that result in the graph of [tex]g(x) = (x + 2)^2 + 6[/tex] will be that the parabola moved  [tex]2[/tex]  units to the left and  [tex]6[/tex] units up.

What is translations ?

Translation is the act or process of changing completely. In this also the graph changes or transform. i.e. in the graph values of the expression are changing and forming new shape.

We have,

Parent Quadratic equation   [tex]f(x) = x^2[/tex]

And,

Translation of graph  [tex]g(x) = (x + 2)^2 + 6[/tex]

So,

Parent quadratic function works in the form of  [tex]f(x) = a(x-h)^2 + k[/tex]

Here,

"h" tells if the vertex of the parabola is going left or right.

"k" determines if the vertex of the parabola is going up or down.

So, According to the question;

We have,

Translation of graph  [tex]g(x) = (x + 2)^2 + 6[/tex]

So,

From equation we find out that the vertex of the parabola moved  [tex]2[/tex]  units to the left and  [tex]6[/tex] units up.

(Always remember if moving left means  sign would be of plus because in parent quadratic function is in the form of  [tex]f(x) = a(x-h)^2 + k[/tex]  we have minus sign in it.)

Hence, we can say that the Translation of the graph of the parent function [tex]f(x) = x^2[/tex]  that result in the graph of [tex]g(x) = (x + 2)^2 + 6[/tex] will be that the parabola moved  [tex]2[/tex]  units to the left and  [tex]6[/tex] units up.

To know more about Translation click here

https://brainly.com/question/3099136

#SPJ2

Which is an equation of the line with a slope of 4 and a y-intercept of -2?

Answers

Answer:

y = 4x - 2

Step-by-step explanation:

Y-intercepts cross the y-axis at x = 0. So, we can plug (0 , -2) into an equation with m = 4.

-2 = 4(0) + b

-2 = b

y = 4x - 2

A park volunteer plans to work on the park's stone walls for 1 hour every Monday, 1 hour every
Wednesday, and 3 hours on Fridays. The graph shows the number of hours he plans to work for a
given number of weeks. Complete parts a through c.

Answers

Answer:

The answer is below

Step-by-step explanation:

A linear graph has an equation in the form y = mx + b, where y and x are variables, m is the slope of the line and b is the y intercept (that is value of y at x = 0).

a) y represent the number of hours worked and x represent the number of weeks. The points are represented in the form (x, y).

First we can find the slope of the line by picking two points from the graph. Let us use (0, 0) and (2, 10). The slope m is given as:

[tex]m=\frac{y_2-y_1}{x_2-x_1}\\\\m=\frac{10-0}{2-0} \\\\m=5[/tex]

The slope and constant of proportionality is 5.

b) The equation can be gotten using the points (0, 0) and (2, 10). Therefore:

[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\\\y-0=\frac{10-0}{2-0}(x-0)\\\\y=5x\\\\[/tex]

c) In 16 weeks (i.e. x = 16):

y = 5x

y = 5(16)

y = 80 hours

What is 287.7 round to the nearest hundredth

Answers

Answer:

287.70 because if u round to the nearest hundreds all u would have to do is add a zero.

I think it's 287.70

Help!!!! ASAP!!!!!!!!!!!!!!!!

Answers

Answer:

p=15

Step-by-step explanation:

24/8=3

3x5=15

Answer:

bratdth = 8 m

perimeter = 12 m

we know

perimeter of rectangle = 2(l+b)

24=2(l+8)

24=2l+16

24-16=2l

8=2l

8/2=l

l=4m

for second picture

breadth = 5m

length =4 m

p =?

we know

p= 2(l+b)

p=2(4+5)

p=2×9

p=18m

What is slope? Check all that apply.

Answers

Answer:

B, E, and F maybe

Other Questions
Missy bought the can of cat food shown below based on the information in the diagram which is the best approximation for the volume of the can Can you help me? Look at the last question I posted as an example. What realization did the Israelites come to during their captivity in Babylon? That they could only worship in the promised land That they could worship anywhere they want That they must be in Solomon's temple to worship. That God didn't mind if they worshipped many gods show all work please [tex] \frac{7r}{2} \div \frac{ {14r}^{2} }{3} [/tex] could you help me quick!? What is the sign of 45 + (-38) Fran prepared 200.2 grams of dough. How much dough did she use measured in ounces? Sasha grew 36 plants with 9 seed packets. How many total seed packets does Sashaneed if she wants to have 76 plants in her backyard in all? Solve using unit rates.seed packets After a robot vacuum is fully charged, it can run for 15 minutes. It can vacuum 1/2 square foot every second. Can a fully charged robot clean a room that is 400 square feet without recharging? Its Saturday and youre looking forward to hanging out with friends and having some fun. However, you get two phone calls early in the morning that make you stop and think. First, a friend calls to invite you to an all-day basketball tournament. With tickets, lunch, and dinner, you figure youll spend $50. That would put a dent in the money youre saving for a future goal. Then your neighbors call offering you the opportunity to help paint their apartment. They will pay you $75 for the day of work. What will you do? 2/5x2=18 Solve for x PLEASE HELP ME WITH THIS BEFORE MY MOM GETS MATH BECAUSE I HAVE TO FINISH MY WORK UNTIL 4:00 PM! Which answer describes the type of sequence?3, 4, 5, 6, ...geometricneither arithmetic nor geometricarithmetic correct option*PLEASE HELP I WILL GIVE BRAINLIEST 5. Nate wants to solve 114 - 50,He wants to solve using a number bond to subtract from 100. What two numbersshould he use to break apart 114? Categorize the following reaction: C3H8 + O2 ---> CO2 + H2O *Synthesis ReactionCombustion ReactionReplacement ReactionDecomposition Reaction Help asap??!!?!?!.....................................! 5 less than a number x is 3 times the sum of a number x and 2? (i need a word problem not the answer) Why would you be surprised if hockey puck started moving without being hit? Why would you be surprised if a fast movingpuck suddenly stopped in the middle of the ice without being touched? Please use scientific explanations. A medical device company knows that 11% of patients experience injection-site reactions with the current needle. If 3 people receive injections with this type of needle, what is the probability that the first person has an injection-site reaction, but the next two do not?