Consider the equation 3a+0.1n=123. If we solve this equation for n, which equation would result? A. 0.1n=123-3a B. N=123-3a-0.1 C.N=1,230-30a D. 3a-123 over 0.1 =n

Answer:

A) [tex]x+y=20[/tex]

B) Cost function is: [tex]3x+2y = 50[/tex]

C) [tex]x+y=20[/tex], [tex]3x+2y = 50[/tex]

D) [tex]x=10, y=10[/tex]

E) Yes, the result satisfies the equations.

Step-by-step explanation:

Let number of kilos of mango bought = [tex]x[/tex]

Let number of kilos of atis bought = [tex]y[/tex]

Total number of kilos bought = 20

A) [tex]x+y=20[/tex]

Cost of mango per kg = 60

Cost of mango for [tex]x[/tex] kg = [tex]60x[/tex]

Cost of atis per kg = 40

Cost of mango for [tex]y[/tex] kg = [tex]40y[/tex]

Total cost is: Cost of mango + Cost of atis = 1000

B) Cost function is:

[tex]60x+40y=1000\\\Rightarrow 3x+2y = 50 ...... (2)[/tex]

C) System of equations are:

[tex]x+y=20[/tex] ...... (1)

[tex]3x+2y = 50[/tex]...... (2)

D) Using elimination method:

Multiplying equation (1) with 2 and subtracting from (2):

[tex]x = 10[/tex]

By equation (1):

[tex]\Rightarrow y =10[/tex]

E) Putting both the values in LHS of equation (1):

10+10  = 20 = RHS

Putting both the values in LHS of equation (2):

[tex]3\times 10 +2\times 10[/tex] = 50 = RHS

Yes, the result satisfies the equations.

Answer:

What is it?

Step-by-step explanation:

Answer:

[tex]\approx \frac{11}{40}[/tex]

Step-by-step explanation:

Juice squeezed from first orange = [tex]\frac{4}{17}[/tex] = 0.235

Juice squeezed from second orange = [tex]\frac{3}{10}[/tex] = 0.3

Juice squeezed from third orange = [tex]\frac{9}{20}[/tex] = 0.45

Juice squeezed from fourth orange = [tex]\frac{3}{11}[/tex] = 0.27

Juice squeezed from fifth orange = [tex]\frac{7}{15}[/tex] = 0.47

Total juice squeezed from all the five oranges = 0.235 + 0.3 + 0.45 + 0.27 + 0.47 = 1.725

Total juice to be squeezed = 2 cups

More juice required = 2 - 1.725 = 0.275 [tex]\approx \frac{11}{40}[/tex]

Therefore, to make it 2 cups of orange juice for the family, about [tex]\approx \frac{11}{40}[/tex] cups of more juice is required.

Answer:

1 5/6

Step-by-step explanation: this is what i got from doing the math. please correct me if I'm wrong

Answer:

Dont know thanks me!!!

Step-by-step explanation:

Answer:

3279

Step-by-step explanation:

math

Answer:

47

Step-by-step explanation:

Answer:

please mark me brainlist

Step-by-step explanation:

SEC2A -TAN2A

1/COS2A - SIN2A/COS2A

1-SIN2A/COS2A

1-2SINACOSA/COS^2A-SIN^2A

COS^2A+SIN^2A-2SINACOSA/COS^2A-SIN^2A

(COSA-SINA)*(COSA-SINA)/(COSA-SINA)*(COSA +SINA)

(COSA -SINA)/COSA+SINA

Answer:

Matching the population trend to a contributing factor:

Contributing Factors                                                 Population Trends

government-sponsored family control programs    Low birth rate

agricultural economies                                              increase in food supply

medical advancements                                             low death rate

Industrial Revolution                                                 high birth rate

Step-by-step explanation:

a) Contributing factors are some negative or positive factors that influence or cause a single event or chain of events that result to the incident.

b) Defining population trends:

1) High birth rate: the industrial revolution triggered high birth rate, following increased food supply and medical advancements.

2) Low death rate: medical advancements brought about low death rate as better healthcare is provided to the sick.

3) Increase in food supply: large-scale agricultural economies ensured increasing food production and supply.

4) Low birth rate: when governments started sponsoring family control programs, the resulting effect was low birth rate.

Answer:

The first one is children and adolescents

the second one is adults

the third one is pregnancy

the last one is indivisuals with brittle bones

Step-by-step explanation:

hope this helps :D

Answer:

[tex]Feeds = 11.76kg[/tex]

Step-by-step explanation:

Given

[tex]Field\ A= 56\%[/tex]

[tex]Field\ B= The\ rest[/tex]

[tex]Bag = 21kg\ feed[/tex]

Required

Determine how much goats in field A, get.

To do this, we simply multiply the percentage feed received by goats in field A by the actual bags of feeds

i.e.

[tex]Feeds = 56\% * 21kg[/tex]

Convert percentage to decimal

[tex]Feeds = 0.56 * 21kg[/tex]

[tex]Feeds = 11.76kg[/tex]

Hence, goats in field A get 11.76kg of feeds

Answer:

BC is 28

Step-by-step explanation:

Answer:

5 Laps

Step-by-step explanation:

The question says that she runs the same distance everyday. This shows us that...

2 laps on a running trail and 6 more miles = 4 laps on a running trail and 2 more miles

We can turn laps into the variable L and miles into the variable M to create an equation

2 L + 6 M = 4 L + 2 M

We can start by subtracting 2 M from both sides to get:

2 L + 4 M = 4 L

Now, we can subtract 2 L from both sides

4 M = 2 L

This tells us that 2 laps are 4 miles which means that 1 lap is 2 miles.

Now, we can break down either side of the equation. Let's break down

2 L + 6 M

First, we can turn the miles into laps. We know that 2 miles is one lap so we can divide 6 by 2. Our Equation:

2 L + 3 L

Now, we can simplify this :

5 L

Now we know that she ran 5 laps on saturday.

Hope this Helps!!! :)

Let me know in the comments if this answer was perfect or if I should change anything!!!

Answer:

x = 19

Step-by-step explanation:

(5x + 2)° + 83° = 180°

✍️Reason: both are linear pair angles. Linear pair angles are supplementary.

Solve for x

5x + 2 + 83 = 180

5x + 85 = 180

Subtract 85 from both sides

5x = 180 - 85

5x = 95

Divide both sides by 5

x = 95/5

x = 19

Answer:

(4,-5) is the answer

hope it helps you!!!!!!!

Step-by-step explanation:

.

Answer:

actual answer

Step-by-step explanation:

Answer:

Step-by-step explanation:

(12,5)

nvm lol 3/4( had to redo

Answer:X=16

Step-by-step explanation:

16-3=13

Answer:16

Step-by-step explanation:16-3=13

Answer:

The line has a slope of zero which means the line is a horizontal line.

Step-by-step explanation:

Given that:

The two points are (-3,2) and (4,2)

Slope of a line is given by the formula,

[tex]m = \frac{Rise}{Run} = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

Here,

[tex]x_{1}=-3,\ y_{1}=2\\x_{2}=4,\ y_{2}=2[/tex]

Putting these values in formula;

[tex]m=\frac{2-2}{4-(-3)} \\m = \frac{0}{4+3}\\m = \frac{0}{7} = 0[/tex]

Hence,

The line has a slope of zero which means the line is a horizontal line.

Answer:

The answer is in the attached screenshot

the Y intercept is 9

the slop is 5/3

hope this helps.

Step-by-step explanation:

May I have brainliest please? :)

Answer:jdjej

Step-by-step explanation: so u can give him brainliest

Step-by-step explanation:

44 = 2 * h * 11

44 = 22 * h

divide 22 on both sides, and you get the answer

2 = h

A = 2h(B + b)

Disregard my first reply.

Here is the math work.

44 = 2h(2 + 9)

44 = 4h + 18h

44 = h(4 + 18)

44/(4 + 18) = h

44/22 = h

Divide top and bottom by 11.

4/2 = h

2 = h

Done!

1

Answer:

1. A) -12, 3 B) -6, 9 C) 0, -6 D) -15, -6

2. L) 1, -4 M) 6, 4 N) 7, -2

3. P) 4, 12 Q) 12, 12 R) 12, 8 S) 4, 8

4. W) 3, -6 X) 9, -3 Y) 15, -6 Z) 9, -9

5. M) -14, -8 N) -8, -6 O) -6, -12 P) -12, -14

6. D) -1, 3 E) 2, 2 F) 2, 1 G) -1, 0

Answer:

29.7

Step-by-step explanation:

y = 2.7x + 2.7

y = 2.7(1) + 2.7 = 5.4

y = 2.7(2) + 2.7 = 5.4 + 2.7 = 8.1

y = 2.7(3) + 2.7 = 8.1 + 2.7 = 10.8

y = 2.7(4) + 2.7 = 10.8 + 2.7 = 13.5

y = 2.7(10) + 2.7 = 27 + 2.7 = 29.7

Answer:

Hai is incorrect, there is no solution to this equation.

Step-by-step explanation:

1.) Expand.

3x-4=2x+6+x3x−4=2x+6+x

2.) Simplify  2x+6+x2x+6+x  to  3x+63x+6.

3x-4=3x+63x−4=3x+6

3.) Cancel 3x3x on both sides.

-4=6−4=6

4.) Since -4=6−4=6 is false, there is no solution.

Therefore, this equation has no solution

Answer:

when dividing fractions folow these steps:

first, you need to switch the denom and num of the second fraction:

3/4 ÷ 1/3---> 3/4 ÷ 3/1

Next you just switch the sign of the negative to a multiplication sign and multiply:

3/4 ÷ 3/1---> 3/4 x 3/1

3/4 x 3/1 -----> 9/4

9/4, 2 1/4 - these are your answers. Either are correct

Step-by-step explanation:

Answer:

2 1/4

Step-by-step explanation:

Answer:

f

Step-by-step explanation:

Answer:

y = x - 5

Step-by-step explanation:

I just got it right on edge2020

Answer: y = -1*x^2 - 4

Step-by-step explanation:

A generic quadratic equation is written as:

y = a*x^2 + b*x + c

we need to find the values of a, b, and c

We have the table:

x     y = f(x)

-4     -20

-3       -13

-2        -8

-1         -5

0         -4

1          -5

In the table we can see two things:

y(0) = a*0^2 + b*0 + c = c = -4

Then we know that:

y(x) = a*x^2 + b*x - 4

Now we only need to find a and b.

We also can see that we have symmetry around the point x = 0, this means that x = 0 is the vertex of the quadratic equation, and for a general case the vertex is at:

x = -b/2a

and this is equal to zero:

-b/2a = 0

then we must have b = 0.

So for now, the equation is:

y = a*x^2 -4

Now we can just replace the values of any of the points to find the value of a, for example we can use the point (1, -5)

this means that:

y = -5 = a*1^2 - 4

    -5 = a - 4

    -5 + 4 = a

        -1 = a

Then the quadratic equation is:

y = -1*x^2 - 4

Answer:

trumpeter swans = t = 41

sand-hill cranes = s = 26

chickadees = c = 164

dusky grouses = d = 82

Step-by-step explanation:

Total birds = 313

Let

trumpeter swans = t

sand-hill cranes = s

chickadees = c

dusky grouses = d

t = 15 + s

c = 2d

d = 2t

t + s + c + d = 313

(15+s) + s + 2d + d = 313

15 + s + s + 2(2t) + 2t = 313

15 + 2s + 4t + 2(15+s) = 313

15 + 2s + 4(15 + s) + 30 + 2s = 313

15 + 2s + 60 + 4s + 30 + 2s = 313

105 + 8s = 313

8s = 313 - 105

8s = 208

s = 208 / 8

= 26

s = 26

t = 15 + s

= 15 + 26

= 41

d = 2t

d = 2(41)

= 82

c = 2d

c = 2(82)

= 164

trumpeter swans = t = 41

sand-hill cranes = s = 26

chickadees = c = 164

dusky grouses = d = 82