please can any one solve the simultaneous equation ​

Please Can Any One Solve The Simultaneous Equation

Answers

Answer 1

Eliminating c first is easiest:

• adding equations 1 and 2 together gives

(4g + 12f - c) + (10g - 14f + c) = 40 + (-74)

14g - 2f = -34

[7g - f = -17]

• adding equations 1 and 3 together gives

(4g + 12f - c) + (12g + c) = 40 + (-36)

16g + 12f = 4

[4g + 3f = 1]

Multiply the first equation wrapped in [] above by 3, then add it to the other one. This eliminates f :

3 (7g - f ) + (4g + 3f ) = 3 (-17) + 1

(21g - 3f ) + (4g + 3f ) = -51 + 1

25g = -50

Solve for g :

g = -2

Plug this into the first equation in [] and solve for f :

7 (-2) - f = -17

-14 - f = -17

f = 3

Plug these both into any of the original 3 equations. The third one has no f term, so that's simplest. Solve for c :

12 (-2) + c = -36

-24 + c = -36

c = -12


Related Questions


What’s that’s plsssssssssssssss help

Answers

Answer:

it is 380 :)

Step-by-step explanation:

Answer:

Step-by-step explanation:

10^3=10(10)10=1000

1000(0.38)=380

Use the Cross Products Property to solve the proportion. x/8=3/12

Answers

Answer:

[tex]x = 2[/tex]

Step-by-step explanation:

1) Simplify 3/12 to 1/4.

[tex] \frac{x}{8} = \frac{1}{4} [/tex]

2) Multiply both sides by 8.

[tex]x = \frac{1}{4} \times 8[/tex]

3) Simplify 1/4 × 8 to 8/4.

[tex]x = \frac{8}{4} [/tex]

4) Simplify 8/4 to 2.

[tex]x = 2[/tex]

Therefor, the answer is x = 2.

Have an amazing day :)

Will give brainlst

Answers

Answer:

if this is a right triangle and you want to know the length of the hypotenuse:

c = 15.62 feet

Step-by-step explanation:

c² = a² + b²

c² = 10² + 12² = 100 + 144 = 244

c = √244 = 15.62 feet

Please lmk I need help

Answers

Answer:

x > 7

Step-by-step explanation:

(Make sure to check with someone else to see if this is right)

Since she already spent $25 we can just subtract

60 - 25 = $35

So since she only has 35 dollars then she can only buy so many shirts, to find out how many you have to

35 / 5 = 7

So the inequality would be..

x > 7 pairs of shirts

PLEASE HELP IM GONNA FAIL IF I DONT DO GOOD ON THIS MATH TEST PLZ PLZ HELP

Answers

Answer:

D

Step-by-step explanation:

Answer: D

The first option is incorrect because 56+angle 3=180 and when you solve it angle 3 equals 124 degrees, not 142 degrees

The second option is incorrect because 56+43+angle 1=180 (because all triangles add up to 180 degrees). When you solve that angle 1 equals 81 degrees, not 99 degrees

The third option is incorrect because angle 1+angle 2=180, and we already know angle 1 equals 81, so when you solve that angle 2 equals 99 degrees, not 137 degrees. So we know the last option is correct.

But if you want to make sure it's correct, you can always solve for angle 4. Angle 4+43=180 degrees, and when you solve it, angle 4 equals 137 degrees, and we know that option is correct.

Hope this helped you!

Plzz help me!i am timed! Plzz

Answers

Its a triangular Pyramid. Hope this helps!

Help ASAP
Michelle cycles for 3 hours at an average speed of 27 km/h.
How many kilometres does Michelle cycle?
Please include working out of how to do this

Answers

Answer:

81

Step-by-step explanation:

thus it said 27 km/hr, she travel 27 km every hour so 27*3=81

3 true?
For what value of x is the equation
2-3
- +4
À
B. 3
C. 9
D. -15

Answers

Answer:

3

Step-by-step explanation:

2 -3 = -1 + 4 = 3

I need help on this question!!

Answers

Answer:

-1,10

0,8

2,4

3,2

Step-by-step explanation:

plug it in, x with x and y with y

example:

2(-1)+ y=8

What is the difference of the polynomials:

(3x2 + 4x + 8) - (2x2 + 2x + 5)

a x^2 + 2x + 3
b x^2 + 6x + 3
c x^4 + 2x^2 + 3
d x^4 + 6x^2 + 13

Answers

Answer:

(6+4x+8)-4-2x-5

6-4+4x-2x+8-5

2+2x+3.

Find the domain of f(x)= x/x-9

Answers

Answer:

Step-by-step explanation:

The domain, the possible values of x, is only limited in this function when the function is undefined. Specifically division by zero is undefined. In this case x cannot be equal to 9 because that would lead to division by zero. And that is the only restriction. So the domain is all real numbers except 9. In interval notation this is

x=(-oo, 9),(9, +oo)

Find the slope of the line that passes through (9, 6) and (6, 2).

Answers

Answer:

4/3 not sure

i hope its hepls

Answer:

y2 - y1/ x2 - x1

6 - 6/2 - 6 = 0/-4 = 0

Step-by-step explanation:

Question 10 of 10
In a certain plant, yellow leaves are dominant (Y) and red leaves are recessive
(V). A plant with genotype Yy and a plant with YY are crossed. If they have
four offspring, how many would you predict would have red leaves? (Hint:
Draw a Punnett square to help you determine the answer.)
A. O
B. 3
C. 1
D. 2
SUBMIT

Answers

well in a brief explanation you need at least two (2) recessive (y) to make one red plant which there is not any so the two dominant plant will come out successfully as a dominant (Y) and there will also be yellow leaves with the one recessive

Here, the yellow leaves are dominant and red leaves are recessive. Then, if they have four offspring, they will not have offspring with red leaves. Hence, option A , zero is correct.

What is a dominant genotype ?

In genetics, a dominant genotype is a genetic trait that is expressed when an individual has one or two copies of the dominant allele.

Here, since yellow leaves (Y) are dominant over red leaves (v), a plant with the genotype Yy will have yellow leaves.

When a plant with the genotype Yy (one dominant Y allele and one recessive v allele) is crossed with a plant with the genotype YY (two dominant Y alleles), the possible gametes from each parent are:

Yy plant: Y gamete or v gamete

YY plant: Y gamete

The possible offspring genotypes and their corresponding phenotypes can be determined using a Punnett square

 | Y | Y

Y | YY| YY

y | Yy| Yy

As shown in the Punnett square, all of the offspring will have the genotype Yy and therefore have yellow leaves. None of the offspring will have the genotype vv required to produce red leaves.

Therefore, the answer is 0 (none of the offspring would have red leaves), Hence, option A is correct.

Find more on genotypes:

https://brainly.com/question/29156144

#SPJ7

Solve and check
please please help i will mark u as a brill it is easy please

Answers

Answer:

P= 14

Step-by-step explanation:

Answer:

14

Step-by-step explanation:

p + 86 = 100

p = 100 - 86

p = 14

PLEASE PLEASE HELP ASAP THANKS

Answers

About (23, 14)


Hope it helps

1-7 blanks it’s due at 12 am plz help!

Answers

X-int: (square root of 31 + 6,0) & (square root of 31-6,0)

Y-int: (0,5)
Vertex: (6,-31)
AOS: x=6
Max/Min Value: (6,-31)

A rectangle has a base of 2 feet and a height of 14 feet. What is its area?​

Answers

Answer:

28 feet.

Step-by-step explanation:

Area =  l × w

=  2 × 14

=  28 feet^2

What is the slope of the line that passes through the points (1, 3) and (5, –2)?

Answers

m=-(5/4)

From left to right, (1,3) is first and then comes (5,-2). Always remember when finding slopes without equations, the rule is RISE over RUN, to the numerator and denominator, respectively.

The y value of the second coordinates becomes negative which is unlike the y value in the first coordinates, which means our slope is downward, meaning it has a negative sign in front.

In every slope, there’s a numerator, being the rise, and a denominator, being the run.

To find the rise, we must look at the y values. Starting at 3 going to -2 has a space of 5 units, making that our numerator.

To find the run, the first x value is 1 and the second is 5, making a space of 4, which is out denominator.

With these two numbers and the negative sign, we get -(5/4) as our slope.

The probability of an event is 0.26. Describe the likelihood of the event.

Answers

Answer:

Not likely

Step-by-step explanation:

0.0 -- 0.32 = Not likely

0.33 -- 0.66 = Neither likely or unlikely

0.67 -- 1.0 = Likely

Hope this helps. Have a nice day.

Answer:26% {not likely}

Step-by-step explanation:

0.26 move the decimal over 2 times = 26%

40 and less let it rest 50 and more raise the score.

Carlson's wheelbarrow can hold 460 pounds. if he has 187 pounds of rocks in the wheelbarrow, what number of pounds, p, can he put in the wheelbarrow without going over the weight limit?

PLEASE HELP ME!!!.

Answers

Step-by-step explanation:

i think you just have to subtract 460-187 equals 273 so he can put 273 or something lower then that

Which expression is represented by the diagram?

Answers

Answer :
-10-(-4)
Explanation :
There are 10 minuses and four minuses are removed so it is expressed as -10-(-4)

A can has 50 marbles in it.every hour, 7 marbles are taken out.after 4 hours,how many marbles are left in the can.

Answers

Answer:

22 marbles

Step-by-step explanation:

you do 7 times 4 and subtract the awnser from 50

The function f(x) = 1.25x + 12 represents the cost, in dollars, of a large pizza with x toppings. What does the 1.25 represent?
A the cost for each topping on a large pizza
B. the cost of a large pizza without toppings
C. the pizza delivery charge
D. the total cost of a large pizza

Answers

1.25 represents the cost of each of the toppings in the pizza and the price of the pizza without the toppings is the (12) and f(x) is the total cost of the pizza

A is the correct answer for this question

Help me plzzzzzzzzzzzzzzzzzz.

Answers

Answer:

D : 10ab√2a+20a√2a

Step-by-step explanation:

u already got the answer so free point

Find the volume of the following prism using the formula V = Bh.

Answers

Answer:

Volume is 144

Find sin C, cos C, tan C. Express each ratio as a fraction. a=9, b=41, c=40

Answers

Answer:

sin C = 40/41

cos C = 9/41

tan C = 40/9

Step-by-step explanation:

sin C = opp/hyp = c/b = 40/41

cos C = adj/hyp = a/b = 9/41

tan C = opp/adj = c/a = 40/9

Explain how to write the story.

Answers

Answer:

?

Step-by-step explanation:

You write a story. You write about something we’re there are characters and create a conflict between the characters then at the end you add the solution to the problems how they been solved on those characters

Publix sells apples and oranges for $0.79 per pound. Marc puts 1.2 pounds of oranges in his cart then adds some apples. The total cost of his apples and orange is $6.27.​

Answers

Answer:

D

Step-by-step explanation:

you have to multiply .79 to both a and 1.2. A is wrong because it's saying we need to multiply .79 to 1.2lb. which is the weight of oranges and the total cost of apples and oranges which is 6.27.

The following set of numbers
has a mean of 38.8.
What would be the mean if 29
was added to the list?
75, 21, 45, 39, 14

Answers

Answer:

37.17

Step-by-step explanation:

Find the mean by adding together all of the numbers, then dividing it by how many numbers there are.

(29 + 75 + 21 + 45 + 39 + 14) / 6

= 37.17

So, if 29 is added, the mean is approximately 37.17

Answer:

37.17

Step-by-step explanation:

Hope this helps

2 people are evenly sharing 15 milliliters of perfume. How much perfume should each person get? ( as a fraction/mixed number)

Answers

7.5 or 7 1/5 or 8/5 that’s the answer I’m 99.9% sure
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