Which ordered pair is the best estimate for the solution to the system?



(4.8,5.2)

(5.5,4.3)

(5.1,4.8)

(6.5,5.2)

Which Ordered Pair Is The Best Estimate For The Solution To The System?(4.8,5.2)(5.5,4.3)(5.1,4.8)(6.5,5.2)

Answers

Answer 1

Answer:

5.5, 4.333 or 13/3

Step-by-step explanation:

Use substitution method.

Answer 2

Answer:

(5.5, 4.3 )

Step-by-step explanation:

Given the 2 equations

4x - 15y = - 43 → (1)

2x - 3y = - 2 → (2)

Multiplying (2) by - 2 and adding to (1) eliminates the term in x

- 4x + 6y = 4 → (3)

Add (1) and (3) term by term to eliminate x, that is

- 9y = - 39 ( divide both sides by - 9 )

y = [tex]\frac{39}{9}[/tex] ≈ 4.3 ( to 1 dec. place )

Substitute this value into either of the 2 equations and solve for x

Substituting into (2)

2x - 3([tex]\frac{39}{9}[/tex] ) = - 2

2x - 13 = - 2 ( add 13 to both sides )

2x = 11 ( divide both sides by 2 )

x = 5.5

Best solution is (5.5, 4.3 )


Related Questions

tom and tammy race cross country on motor bikes to drive 450 miles in 9 hours. Tammy took 7 1/2 hours to travel the same distance as tom compute the unit rate that describes toms average driving speed and tammy's average driving speed show how your decisions below

Answers

Answer:

50 and 60 mph respectively

Step-by-step explanation:

Step one:

given data

total distance= 450 miles

time take= 9 hours

Required

Tom and Tammy's average speed

Step two:

Tom's average speed= 450/9

= 50 miles per hours

Tammy's average speed= 450/7.5

= 60 miles per hours

can anyone please help i am stuck on this question?

Answers

Answer:

8/17

General Formulas and Concepts:

Trigonometry

[Right Triangles Only] cos∅ = adjacent over hypotenuse

Step-by-step explanation:

Step 1: Define

We are given a right triangle. We can use trig to find the ratio.

Step 2: Identify

POV from angle S

Adjacent = 8

Hypotenuse = 17

Step 3: Write

Substitute [cosine]:                    cos(s) = 8/17

The residence of a city voted on whether to raise property taxes the ratio of yes to no votes was 2 to 3 is there were 4795 total votes how many yes votes were there

Answers

Answer: The number of yes votes = 1918.

Step-by-step explanation:

Given : The ratio of yes to no votes = 2:3

Then the ratio of yes to total votes = [tex]\dfrac{2}{2+3}=\dfrac25[/tex]

Total votes = 4795

Number of yes votes  =  (ratio of yes to total votes) x (Total votes )

= [tex]\dfrac{2}{5}\times4795=1918[/tex]

Hence, the number of yes votes = 1918.

If a university accepts only 75 percent of applicants, and only 45 percent of accepted applicants enroll, what percentage of total applicants enroll

Answers

Answer = 33.75%

Step-by-step explanation: It might be intuitive to think of percentages as a part of 100. If only 75 percent of 100 applicants are accepted. Then 75 people are accepted. We now need to find 45 percent of 75 people. In order to do this we need to convert 45 percent into its decimal form and multiply it by 75.

.45*75 = 33.75 of the original 100 Applicants have enrolled.

David reads 5/8 chapters in 4/5 hours.
What is the unit rate in chapters per hour?

Answers

the answer is : 25/32

which one is greater 0.503 or 0.53

Answers

Answer:

0.53

Step-by-step explanation:

Hope this helps.

Last year, Nancy bought a mountain bike for $570. Her bike has depreciated since she bought it. It is now worth $410. What percent did the value of Nancy’s bike depreciate over the past year? Round the the nearest whole percent.

Answers

It’s worth about 72% of the original value so about a 28% depreciation over the year

whoever answers first get brainliest

Answers

Wdym I can help u but wym

Help please

How are the properties of exponents used to rewrite expressions?

Answers

Answer: The five exponent properties are

Product of Powers: When you are multiplying like terms with exponents, use the product of powers rule as a shortcut to finding the answer. It states that when you are multiplying two terms that have the same base, just add their exponents to find your answer.

Power to a Power: When raising a power to a power in an exponential expression, you find the new power by multiplying the two powers together. ... Then multiply the two expressions together. You get to see multiplying exponents (raising a power to a power) and adding exponents (multiplying same bases).

Quotient of Powers: When you are dividing like terms with exponents, use the Quotient of Powers Rule to simplify the problem. This rule states that when you are dividing terms that have the same base, just subtract their exponents to find your answer. The key is to only subtract those exponents whose bases are the same.

Power of a Product: The Power of a Product rule is another way to simplify exponents. When you have a number or variable raised to a power, it is called the base, while the superscript number, or the number after the '^' mark, is called the exponent or power.

Power of a Quotient: The Power of a Quotient rule is another way you can simplify an algebraic expression with exponents. When you have a number or variable raised to a power, the number (or variable) is called the base, while the superscript number is called the exponent or power

You can use these any way you want to rewrite an equation.

Hope this helped

Step-by-step explanation:

Name the angle in (4) different ways.

Answers

Answer:

An angle can be named in different ways:

•by a number or letter written inside the angle.

•by the name of the vertex.

•by the vertex and a point on each ray.

Pls help I put a pic of problem

Answers

Answer:

a

Step-by-step explanation:

The answer to it is a

What is the value of x?

Answers

Answer:

the value of x is one of those answers i can tell you son

Step-by-step explanation:

and it is NOT 3/4 thast FOR SURE

GUYSSS HELPPP MEEE IM SUPPOSED TO SUBMIT IT IN 20 MINS AND I HAVE NO IDEA!!
PLEASE HELP

Answers

1. f(x) = x² + x + 4

f(x) = 0

0 = x² + x + 4

-4 = x² + x

2. linear equation

one solution

Mrs. Maxwell is teaching a 5th grade class. She is standing 9 meters in front of Bruce. Ruth is sitting to Bruce's right. If Ruth and Mrs. Maxwell are 15 meters apart, how far apart are Bruce and Ruth?

Answers

9514 1404 393

Answer:

  12 m

Step-by-step explanation:

The distances of interest are the sides of a right triangle whose right angle is at Bruce. The hypotenuse of the triangle is the Teacher-Ruth distance. The unknown side (x) can be found using the Pythagorean theorem:

  x² + 9² = 15²

  x² = 225 -81 = 144

  x = √144 = 12

Bruce and Ruth are 12 meters apart.

y=-4/7x-4
Can someone help me please

Answers

-7=x because u put the -4 on the other side and then multiply by seven to get 28=-4x divide both sides by negative four

What is 70% of 40??????

Answers

Answer:

28

Step-by-step explanation:

hope this helps

Answer:

28

Step-by-step explanation:

70% is equal to 70/100. "of" when used in math means multiplaication.

so we do 70/100 x 40

we can simplify 70/100 to get 7/10.

now we multiply:

7/10 x 40 = 28

One number exceeds the other by 9 and their sum is 81. Find the
numbers.

Answers

Answer:

36, 45

Step-by-step explanation:

Using equations you get [tex]x + x+9=81[/tex] because one number is 9 more than the other and the sum is 81. Simplifying you get, [tex]2x = 72[/tex]. Divide both sides by 2 to get [tex]x=36[/tex]. Remember this is only x so to get the other number you have to add 9 to 36 to get 45 as the other number.

help help help helphelp​

Answers

3(x-1) is your answer


The ages of 10 randomly selected students in a piano class are recorded below. 12, 14, 16, 15, 14,
18, 11, 12, 14, 15
What is a good estimate of the average age of all the students in the piano class?
A: 12 years
B: 14 years
C: 18 years
D: 16 years

Answers

Answer:A ..

Step-by-step explanation:

Your best answer would be option B : 14 years

Drake is saving money to buy a new computer for $1,200. He already has $450 and plans $30 a week. The function y = 30x + 450 represents the amount Drake has saved after x weeks. How many weeks will it take Drake to save enough money to buy the computer?

Answers

Answer:

25 weeks

Step-by-step explanation:

step 1. find y which is what you are trying to find which is how long it will take for drake to make $1200

step 2.- subtract 450 from each side

1200=30x+450

-450           -450

750=30x

step 3.- divide by 30 on both sides

750=30x

30    30

x=25

i dont know if this helps but i am still learning how to explain on here. :)

Answer:

it will take him 25 weeks

Step-by-step explanation:

because 1,200 - 450= 750, and 750 divided by 30 is 25, therefore it will take him 25 weeks.

John bikes 22 km per hour and starts at mile 10. Gymn bikes 28 km per hour and starts at mile 0. Which system of linear equations represents this situation?

Answers

Answer:

Step-by-step explanation:

The following are linear equations for the distance that John has biked (J) and the distance that Gymn has biked (G). These two equations represent the situation being described using the values provided.

J = 22x + 10

G = 28x + 0

In these equations the variable x represents the number of hours each of the bicyclists have biked.

Please help fast as you can

Answers

Answer:

The elements of the set C will be:

C = {-2, -1, 0, 1, 2, 3, 4, 5}

In other words,

[tex]-2\le \:x<6\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-2\le \:x<6\:\\ \:\mathrm{Interval\:Notation:}&\:[-2,\:6)\end{bmatrix}[/tex]

The solution number line is also attached below.

Step-by-step explanation:

C = {x ∈ Z | such that -2 ≤ x < 6 }

It is clear that the x ∈ Z, meaning the x belongs to the set of integers Z.

It is given that -2 ≤ x < 6.

so x must be greater than or equal to -2 and less than 6.

Therefore, the elements of the set C will be:

C = {-2, -1, 0, 1, 2, 3, 4, 5}

In other words,

[tex]-2\le \:x<6\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-2\le \:x<6\:\\ \:\mathrm{Interval\:Notation:}&\:[-2,\:6)\end{bmatrix}[/tex]

The solution number line is also attached below.

at the school Fall Festival the students council sold soda at the fundraiser the table below shows the number of sodas they sold and they cumulative total money.
A. 3.40 per soda
B. 1.40 Per soda
C. 2.40 Per soda
D. 3.60 per soda ​

Answers

Answer:

$4.80/2sodas

4.80/2=2.40

C. 2.40 per soda

please help me this.Thank you ​

Answers

Answer:

[tex]x=\frac{15+\sqrt{165} }{6}, \frac{15-\sqrt{165} }{6}[/tex]

These should be the the two values for x

Explanation:

Geometry help please explain

Answers

Answer:

<A and <C

Step-by-step explanation:

If EA and EC are congruent, the angles <A and <C are also congruent

Answer:

angle A congruent to angle C

Please help!! This is super important!!

Answers

Answer:

tell me the choices so i can help you............

The price of a smart phone is "x" and is discounted 40% for a special promotion. You must also pay 7% sales tax on this purchase. What is the final price for this purchase?

Answers

Answer:

0.428x

Step-by-step explanation:

The price of a smart phone is "x" and is discounted 40% for a special promotion.

Step 1

The price after the discount is:

40% of x

= 40x/100

= 0.4x

Step 2

We calculate the exact amount the sales tax is.

You must also pay 7% sales tax on this purchase.

= 7% × 0.4x

= 7/100 × 0.4x

= 0.028x

Step 3

The final price for this purchase is calculated as:

0.4x + 0.028x

= 0.428x

Hence, the final price for this purchase is 0.428x

is a stockbroker. Earns ​% commission each week. Last​ week, sold ​$ worth of stocks. How much did make last week in​ commission? If averages that same amount each​ week, how much did make in commission in​ 2011?

Answers

Answer:

a. $583

b. $30,316

Step-by-step explanation:

a. Commission last week;

= 5,300 * 11%

= $583

b. Commission in 2011 assuming weekly earnings of $583.

= 583 * 52 weeks

= $30,316

5x-8 3x+16
Find X
Answers are; 12, 43/2, 52, 4

Answers

Answer:

Step-by-step explanation:

Those angles are vertical angles, so their measure are equal, so we can set them equal to each other to solve this problem.

5x - 8  =  3x + 16

2x - 8  =  16

2x  =  24

x  =  24 / 2

x  =  12

how does the graph of y=|x|+ 4 compare to the graph of the parent function y=|x|?​

Answers

Answer:

Please check the explanation and attached graph.

Step-by-step explanation:

Given the parent function

y = |x|

In order to translate the absolute function y = |x| vertically, we can use the function

g(x) = f(x) + h

when h > 0, the graph of g(x) translated h units up.

Given that the image function

y=|x|+4

It is clear that h = 4. Since 4 > 0, thus the graph y=|x|+4 translated '4' units up.

The graph of both parent and translated function is attache below.

In the graph,

The blue line represents the parent function y=|x|.

The red line represents the image function y=|x| + 4.

It is clear from the graph that the y=|x| + 4  translated '4' units up.

Please check the attached graph.

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