Estimate the solution to the following system of equations by graphing.

3x + 5y = 14
6x - 4y = 9

A.(7/3,-7/2)
B.(-5/2,-7/2)
C.(5/2,4/3)
D.(4/3,5/2)

Answers

Answer 1

Answer:

Step-by-step explanation:

Draw the 2 lines of the equations on graph paper.

The coordinates of the point where they cross is the solution

The answer is (5/2, 4/3)

Answer 2

Answer:

C. (5/2, 4/3)

Step-by-step explanation:

The system of equations that are given are:

[tex]3x + 5y = 14[/tex][tex]6x - 4y = 9[/tex]

To solve, let's use the substitution method.

Note: The substitution method for solving two-order systems involves solving one equation using the terms of the other equation.

See Below:

So solving by substitution:

// Solve equation [2] for the variable  x

 [2]    6x = 4y + 9  [2]    x = 2y/3 + 3/2

// Plug this in for variable  x  in equation [1]

  [1]    3•(2y/3+3/2) + 5y = 14   [1]    7y = 19/2   [1]    14y = 19

// Solve equation [1] for the variable  y

  [1]    14y = 19   [1]    y = 19/14

// By now we know this much :

   x = 2y/3+3/2    y = 19/14

// Use the  y  value to solve for  x

   x = (2/3)(19/14)+3/2 = 101/42

Therefore, the solution is:

[tex]{x,y} =\frac{101}{42} ,\frac{19}{14}[/tex]

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Terms and topics:

Linear equations with two unknownsSolving linear equations by substitution

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Level:

Algebra l (Pre-algebra concepts)

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Related Questions

Did I do it right? If the measure of ∠DAB=51∘, ∠CAB=x, and ∠DAC=x+1, find the measure of ∠CAB

Answers

If the measure of angles ∠DAB = 51° and the value of x is 25. Then the measure of angle ∠CAB will be 25°.

What is an angle?

The angle is the distance between the intersecting lines or surfaces. The angle is also expressed in degrees. The angle is 360 degrees for one complete spin.

If the measure of angles ∠DAB = 51°, ∠CAB = x, and ∠DAC = x + 1.

Then the measure of angle ∠CAB will be

We know

∠CAB + ∠CAD = ∠DAB

x + x + 1 = 51

        2x = 50

          x = 25

Then the measure of the angle ∠CAB will be

∠CAB = x

∠CAB = 25

∠CAB = 25°

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5. Find the largest difference between a 3-digit number and a 2-digit number. ​

Answers

Answer:

989

Step-by-step explanation:

The largest difference could be possible between Largest 3 digit number and smaller two digit number

I.e,

999-10=989

which of the following is(are) the solution(s) to |5x+2|=8

A. x=-2,6/5

B. x=6/5

C. x=2

D. x=2,-6/5

Answers

Option A.

Hope it helps.

Answer:

A

Step-by-step explanation:

|5x+2|=8 this mean that:

5x+2=8 and 5x+2=-8

5x+2-2+8-2 and 5x+2-2=8-2

5x=6 and 5x=-10 then divided both sides by 5

x=6/5 and x=-2

15ml of Tylenol 3 to given every 4-6 hours. Your research indicates that there are 12mg of codeine per 5ml of liquid and that the safe dosage is between 0.5 and 1mg/kg/every 4-6 hours. Is this prescription safe for your child? Explain. If not, what would a safe dose be?

Answers

Answer:

If the safe dose is .5 to 1 mg/kg/dose, the safe limit depends on the side of the child.  Using the more conservative limit of .5mg/kg, you have 36mg(kg/.5mg)=72kg, which is roughly 160lbs,  Even with the upper limit of 1mg/kg, you still have 36mg(kg/1mg) = 36kg, or 80lbs, which is a larger child.  I would say this dose isn't "safe", but you really need the weight of the child to calculate what is a safe dose.

Step-by-step explanation:

complete the steps to solve the equation

Answers

Answer:

attached below

Step-by-step explanation:

minus 2 from each side in order to isolate T with the coefficient. To get rid of the coefficient multiply to get 1 which is 5 in this case. Then the answer will be 75

Mrs.Mason the art teacher is mixing red and yellow paint. The ratio of red to yellow is 3:5. How much red paint should be mixed with 20 ounces of yellow?

Answers

Divide total yellow by its ratio portion.

20/5 = 4


multiply that by the portion for red:

3 x 4 = 12


answer: 12 ounces

Please answer! Will give brainliest please and thank you

Answers

Answer:

119 square ft is the answer now give me brainliest

In a linear function, the domain will always be _____ and the range will always be _____

Answers

Answer:

1. x values

2. y values

hope it helps you:)

Kindly Answer This And Don't Waste My PTS! ☁️

PROBLEM NUMBER 1: Solve 5x+2=22
PROBLEM NUMBER 2: Solve 2x+5=12
PROBLEM NUMBER 3: Solve 2x-5=7​

Answers

====================================

[tex] \large \sf \underline{Problems:}[/tex]

PROBLEM NUMBER 1: Solve 5x+2=22PROBLEM NUMBER 2: Solve 2x+5=12PROBLEM NUMBER 3: Solve 2x-5=7

====================================

[tex] \large \sf \underline{Answers:}[/tex]

[tex] \large \qquad \qquad \bold{ \#1. \: x \: = \: 4}[/tex]

[tex] \large \qquad \qquad \bold{ \#2. \: x \: = \: \frac{7}{2} }[/tex]

[tex] \large \qquad \qquad \bold{ \#3. \: x \: = \: 6}[/tex]

====================================

[tex] \large \sf \underline{Solutions:}[/tex]

Problem Number 1:-

[tex] \large\rm{5x \: + \: 2 \: = \: 22}[/tex]

[tex] \large\rm{5x \: = \: 22 \: - \: 2}[/tex]

[tex] \large\rm{5x \: = \: 20}[/tex]

[tex] \large\rm{x \: = \: \frac{20}{5} }[/tex]

[tex] \large\rm\green{x \: = \: 4}[/tex]

[tex] \therefore[/tex] The answer of you're problem is x = 4.

====================================

Problem Number 2:-

[tex] \large\rm{2x \: + \: 5 \: = \: 12}[/tex]

[tex] \large\rm{2x \: = \: 12 \: - \: 5}[/tex]

[tex] \large\rm{2x \: = \: 7}[/tex]

[tex] \large\rm\green{x \: = \: \frac{7}{2} } [/tex]

[tex] \therefore[/tex] The answer of you're problem is 7/2.

====================================

Problem Number 3:-

[tex] \large\rm{2x \: - \: 5 \: = \: 7}[/tex]

[tex] \large\rm{2x \: = \: 7 \: + \: 5}[/tex]

[tex] \large\rm{2x \: = \: 12}[/tex]

[tex] \large\rm{x \: = \: \frac{12}{2} } [/tex]

[tex] \large\rm\green{x \: = \: 6}[/tex]

[tex] \therefore[/tex] The answer of you're problem is x = 6.

====================================

Hope this helps!

Consider the triangle shown in the picture. Express the perimeter of the triangle as an expression in terms of
x
. Simplify your answer.

Answers

Answer:

The perimeter of the triangle is 11x+1

Select the correct answer.
Consider functions fand g.
f(x) = 11x3 - 3x²
g(x) = 7x4 + 9x3
Which expression is equal to f(x) · g(x)?
OA. 74 +99x3 - 3x²
OB.
77x12 +999 - 21x8 - 2716
C.
18x7 + 10x6 + 6x5
OD.
777 + 7816 - 2715

Answers

The value of the composite function f(x) . g(x) is 77x^7  + 78x^6 - 27x^5

How to evaluate the composite function?

The functions are given as:

f(x) = 11x^3 - 3x^2

g(x) = 7x^4 + 9x^3

The value of f(x) . g(x) is calculated as:

f(x) . g(x) = (11x^3 - 3x^2) *  (7x^4 + 9x^3)

Expand

f(x) . g(x) = 77x^7  + 99x^6 - 21x^6 - 27x^5

Evaluate the like terms

f(x) . g(x) = 77x^7  + 78x^6 - 27x^5

Hence, the value of the composite function f(x) . g(x) is 77x^7  + 78x^6 - 27x^518x^5

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Free easy points will give Brainliest

6^2+4^2=C^2

Answers

Answer: c = about 7.21

Step-by-step explanation:

ok - pythagorean theorum

6^2+4^2=C^2

36 + 16 = c^2

52 = c^2

root both sides

c = about 7.21

The solution to the equation 6^2 + 4^2 = C^2 is approximately 7.21

How to solve the equation?

The equation is given as:

6^2 + 4^2 = C^2

Evaluate the exponents of 6 and 4

36 + 16 = C^2

Evaluate the sum

52 = C^2

Take the square root of both sides

7.21 = C

Rewrite as:

C = 7.21 (approximated)

Hence, the solution to the equation is approximately 7.21

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Find the sum.
35/100 + 5/10

Answers

Answer:

0.85

Step-by-step explanation:

35 divided by 100= 0.35 + 5 divided by 10 = 0.5

0.35 + 0.5 = 0.85

Answer:

17/20

Step-by-step explanation:

35/100+5/10

=35/100+50/100

=85/100

=17/20

1: In a class of 30 students, half of the students like to watch cartoon channels on TV and one sixth like to watch informative channels. The rest like to watch movies. How many students like to watch movies?

Answers

10 students like to watch movies.

first, to find what a sixth of 30 is, you have to divide your number by the denominator (30/6) which is 5, then add that to half of thirty (15) to find out how many kids DONT watch movies. 15+5=20, and to find how many kids are remaining you have to do 30-20, which equals 10, meaning there are a total of ten kids who like to watch movies.

Your company offers two types of insurance plans:

* Option A costs $20 per doctor visit.

* Option B requires you to pay a $250 deductible to activate your coverage and $10 per visit.

Enter an equation that can be used to find the number of visits (v) needed for the two plans to cost you the same amount.

Answers

Answer:

10 x 2 = 20 dollars. 250/12= 20.8333333

Step-by-step explanation:


What is the remainder in the synthetic division problem below?
4 6 - 1
A. 3
B. 7
C. 5
D. 9

Answers

Answer:

so,6-1 3+7x5 9

Multiple: 7 * 5 = 35

Divide: the result of step No. 1 / 9 = 35 / 9 = 3.88888889

Add: 3 + the result of step No. 2 = 3 + 3.88888889 = 6.88888889

What is the volume of the shape this net makes?

Answers

Answer:

1388.13

Step-by-step explanation:

So, the formula for a cylinder is V=pi x R^2 x H

We plug in what we know.

V=3.14x4^2x27.63

V=3.14x16x27.63

V=50.24x27.63

V=1388.13

Choose the graph that represents the equation y = 2|x – 2|.

Answers

Answer:

Graph D. is the correct graph.

The student body of a large university consists of 60% female students. A random sample of 8 students is selected. What is the probability that among the students in the sample at least 6 are female?

Answers

Using the binomial distribution, it is found that there is a 0.3154 = 31.54% probability that among the students in the sample at least 6 are female.

What is the binomial distribution formula?

The formula is:

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

The parameters are:

x is the number of successes.n is the number of trials.p is the probability of a success on a single trial.

In this problem:

The student body of a large university consists of 60% female students, hence p = 0.6.A random sample of 8 students is selected, hence n = 8.

The probability that among the students in the sample at least 6 are female is given by:

[tex]P(X \geq 6) = P(X = 6) + P(X = 7) + P(X = 8)[/tex]

In which:

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 6) = C_{8,6}.(0.6)^{6}.(0.4)^{2} = 0.2090[/tex]

[tex]P(X = 7) = C_{8,7}.(0.6)^{7}.(0.4)^{1} = 0.0896[/tex]

[tex]P(X = 8) = C_{8,8}.(0.6)^{8}.(0.4)^{0} = 0.0168[/tex]

Then:

[tex]P(X \geq 6) = P(X = 6) + P(X = 7) + P(X = 8) = 0.2090 + 0.0896 + 0.0168 = 0.3154[/tex]

0.3154 = 31.54% probability that among the students in the sample at least 6 are female.

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Solve 4x+3>3x+7

This one is so confusing

Answers

Answer:

x>4

Step-by-step explanation:

Answer:

x > 4

Step-by-step explanation:

1. 4x+3>3x+7

2. x>4

4x10^2+3x10^3=
Please see the attached photo

Answers

Answer:

3.4

Step-by-step explanation:

Converting all terms to multiples of 10³ :

4 × 10² + 3 × 10³0.4 x 10³ + 3 x 10³(0.4 + 3) × 10³3.4 × 10³


1.2 The following pattern is given: -100,-97; -91;
1.2.1 What is the fifth term for the pattern?
1.2.2 Determine the general rule for the pattern (the nth term)

Answers

Brainly 505 Server Error

can someone please help me with this math problem please fast

Answers

Sarah has plotted the location wrong because for errand two the dot is at 3 3/5 instead of 3 1/5.

can you please help me please:(…

Answers

Answer:

The function is linear

Step-by-step explanation:

"I disagree with Maryam because if we substitute the values and graph the function, it will turn out to be linear."

Which of the following images shows only parallel lines highlighted in red? Figure A has four line segments connected to form a square, with the circle in the upper left corner colored red. Figure B has four line segments connected to form a square, the line segment on the right and the bottom line segment connect at the vertex and are colored red. Figure C has four line segments connected to form a square, with the bottom line segment colored red. Figure D has four line segments connected to form a square, with the top line segment and the bottom line segment colored red. Group of answer choices Figure A Figure B

Answers

Answer: superfunxd.com
Expla; suauyes

Please help me GENIUS Rank

Directions: Complete the following frequency distribution table, then compute the mean, median, and mode of the distribution. Show your complete solutions. (25 points)

Class interval] frequency (f)] fxm
99-101 ] 17 ].
102-104 ] 25 ]
105-107 ] 13 ]
108-110 ]. 16 ]
111-113 ]. 29 ]
total ]N= ]. Efxm=

less than cumutalti frequency (<cf)
[. ]
[. ]
[. ]
[. ]
[. ]
[. ]​​

Answers

Hey there!

I've done for the median

wait I'm I'm doing for mean and mode too

The graph of y=-3x+ 2 is:

Answers

go on desmos and see what the graph looks like

the figure below is composed of two quarter circles and one right triangle

Answers

This answer will be B the measurement that is closest

A bread recipe contains 60g of butter, 40g of salt and 100g of flour.

a) Determine what fraction of the ingredients is butter. Simplify if possible.

b) Express this fraction as a decimal.

c) What percentage of the ingredients are salt and flour?

Answers

Step-by-step explanation:

a.

add up all the grams to get the total

60 + 40 + 100 = 200

butter is 60 out of 200 or

60/200 or (divide top & bottom by 20)

3/10 = answer

b.

3 ÷ 10 =

.33 = answer

c.

salt =

40 ÷ 200 = 1/5 = .20 =

20% = answer

flour

100 ÷ 200 = 1/2 = .50 =

50% = answer

you have $5600. The best interest rate you can find is 3%
compounded quarterly, for how long should you deposit the money in order
have $9600? how many years

Answers

Answer:

18 years

Step-by-step explanation:

The formula for computing accrued amount A for a principal of P at an interest rate of r(in decimal) compounded n times in a year for t years is given by

[tex]A = P(1 + \frac{r}{n})^{nt}[/tex]

Note that r is percentage converted to decimal. So 3% = 3/100 = 0.03

We can rearrange the above equation to:

[tex]\frac{A}{P} = (1 + \frac{r}{n})^{nt}[/tex]

Taking logs on both sides

[tex]log(\frac{A}{P}) = log(1 + \frac{r}{n})^{nt}[/tex]

This gives

[tex]log(\frac{A}{P}) =nt \times log(1 + \frac{r}{n})\\So,\\nt = \frac{log(\frac{A}{P})}{ log(1 + \frac{r}{n})}[/tex]

In this particular problem, n = 4, , A= 9600, P = 5600, r =0.03, so r/n = 0.03/4 = 0.0075

1 + r/n = 1+0.0075 = 1.0075

4t = log(9600/5600)/log(1.0075) = log(1.714) / log(1.0075) = 0.234 /0.00325 = 72

t = 72/4 = 18 years

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