use the substituation method to solve 6=-4x+y -5x-y=21

Answer:

9.21*10^4

Step-by-step explanation:

Answer:

1. x = y - 2

2. 2y = 2x

Step-by-step explanation:

1. Any number can fit x and y so long as x is 2 lesser than y and y is 2 more than x.

2. x and y can be any number so long as they are the same number.

Answer:

A.

Step-by-step explanation:

x < -6 means that x is lesser than -6. Thus, C and D are wrong. A filled up dot means that -6 is also a possible number for x, but here it says that x is lesser than -6, so it cannot be -6 itself. Thus, B with the filled up dot is also wrong.

Answer:

-6

Step-by-step explanation:

f(1)=-3

why because f(x)=y

so x=1

you go to the x-cordinate and u see where the y-cordinate is

-3

For the graph the answer is -3 for the exterior it's -6

Have a wonderful day/night ask me if you have more math questions

Brainliest Please.

The correct answer would be True

Answer:

the answer is 87

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

9 + (-6) = 3

2(3) = 6

6 - 5 = 1

Answer:

https://brainly.com/question/20245806

Step-by-step explanation:

Go to the link (you can just press it lol)

Answer:

12, can you help me I need help on my questions please it would mean alot and Ill post more questions with 50 points just help me with that and Ill post the points

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

is this true???

thx broh

Answer:

b) 822.42

Step-by-step explanation:

Just multiply 2.7 by 304.6 and your answer would be 822.42

Answer:

answer is b

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

You really just need a calculator for this but to solve by hand just simply separate all the variables and coefficients and then multiply them together at the end.

[tex]-9x^5y^2[/tex]

Since x = -1

[tex]-1^5[/tex] = [tex]-1*-1*-1*-1*-1[/tex] = -1

[tex]\frac{1}{3}^2= \frac{1}{3}*\frac{1}{3}=\frac{1}{9\\}[/tex]

[tex]-9*-1*\frac{1}{9}=1[/tex]

-2 pattern

13-2=11-2=9 and so on

−1.85 it says too short so ignore this ssssssndjbdbjddn

Answer:

Reason 3

Step-by-step explanation:

Reason 3 is supposed to be prove

Answer:

The age at which both companies charge the same premium is 44 years

Step-by-step explanation:

Graph Solution to System of Equations

One approach to solving systems of equations of two variables is the graph method.

Both equations are plotted in the same grid and we find the intersection point(s) of both graphs. Those are the feasible solutions.

The annual premium p as a function of the client's age a for two companies are given as:

Company A: p= 2a+24

Company B: p= 2.25a+13

The graphs of both functions are shown in the image below.

The red line indicates the formula for Company A and the blue line indicates the formula for Company B.

It can be seen that both lines intersect in the point with approximate coordinates of (44,112).

The age at which both companies charge the same premium is 44 years

Triangle second and third can be shown to be similar using AA similarity when we take two angles between them.

In Euclidean geometry, two objects are similar if they have the same shape, or one has the same shape as the mirror image of the other.

In second and third triangle two angles whose measures are 24 degrees and 67 degrees are in both triangles, which is the condition of AA similarity.

To check AA similarity we have to check whether two angles are equal in two triangles to be similar.

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Answer:

$222.75

Step-by-step explanation:

0.9*247.50

hope this helps :D pls mark brainliest :D

Answer:

1. 3v^2 - 33v -28

2. -6k^2 + 16k - 49

Step-by-step explanation:

1. (-7 x 6v) + (-7 x 4) + (3v x 1v) + (3v x 3)

-42v-28+3v^2+9v

3v^2 + 9v - 42v -28

3v^2 - 33v -28

2. (-3k x 2k) + (-3k x -3) + (7 x 1k) + (7 x -7)

-6k^2+9k+7k-49

-6k^2 + 16k -49

sorry . I had done it wrong

Answer:

f(x)= x²+4x-21

a= 1 b=4 c=-21

from [tex]y=ax^2+bx+c[/tex] and [tex]y=x^2+4x-21[/tex] | Compare the coefficients.

Thus the answer is a = 1, b = 4 and c = -21

Answer:

4/7

Step-by-step explanation:

1 3/4   or   7/4

Answer: C) 16

Step-by-step explanation:

= 2(9) - 2

= 18 - 2

= 16

Answer:

16, C

Step-by-step explanation:

|-9| is 9

|-2| is 2

2*9 - 2

18-2

16

Answer:

68 [tex]^\circ F[/tex]

Step-by-step explanation:

Initial temperature in the northeast in the midnight = 5 [tex]^\circ F[/tex]

Drop for the next three hours = 3 degrees per hour.

Temperature after the 3 hours = 5 [tex]^\circ F[/tex] - 3 - 3 - 3  = - 4[tex]^\circ F[/tex]

Now, it is given that the temperature is rising 8[tex]^\circ F[/tex] every hour.

3 hours have already passed from the midnight.

Now, there are 9 more hours till noon.

So, the temperature at noon can be found by adding 8 for 9 times in the temperature after 3 hours.

Temperature at noon = - 4 + 8 + 8 .... 9 times

Temperature at noon = - 4 + 9 [tex]\times[/tex] 8 = -4 +72 = 68[tex]^\circ F[/tex]

Therefore, the answer is: 68[tex]^\circ F[/tex]

Answer:

We do not know

Step-by-step explanation:

There is no time when the doctor starts from home, so it is technically impossible to solve.

It should be noted that the value of the expression 5 - 2 - 2 + 10 will be 11.

Mathematical operators like addition, subtraction, multiplication, and division are used to create expressions in writing.

You must substitute a number for each variable and carry out the arithmetic operations in order to evaluate an algebraic expression.

For example, x + 6 = 12. Since 6 + 6 equals 12, the variable x in the example above is equal to 6. We can substitute the variables with their values and then evaluate the expression if we know the values of our variables.

Based on the information illustrated, it should be noted that the value of the expression 5 - 2 - 2 + 10 will be 11.

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Answer:

Step-by-step explanation:

We know he earns $14 per child under 12

So he'll earn 22 times 14 which is $308 earned.

46% of 308 is basically 0.46 X 308=$141.68 spent on props.

He profits $166.32

If only 10 children attend.

He earns 10 times 14= $140

46% of these earnings is for props and 54% is profit so

0.54 X 140=$75.60.

Thus he profits $75.60 if 10 children attended.

The profit will amount to $75.60 when only 10 children under the age of 12 attend the party.

The percentage is defined as a ratio expressed as a fraction of 100.

We are aware that he receives $14 for each child under the age of 12.

Thus, he will make $308 after multiplying 22 by 14.

In other words, 46% of 308 is 0.46 × 308 or $141.68 spent on props.

He earns $166.32.

If just 10 kids show up.

He makes $10 multiplied by 14 for a total of $140.

Props account for 46% of these revenues, while profits make up 54%, therefore

0.54 × 140=$75.60.

So, if 10 kids showed up, he makes $75.60.

Thus, the profit will amount to $75.60 when only 10 children under the age of 12 attend the party.

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Answer:

Cost of child movie = x = $8

Cost of adult movie = y = $10.25

Step-by-step explanation:

Let cost of child movie = x

Cost of adult movie = y

Now converting statements into mathematical expressions:

Hansen family bought 2 child and 2 adult movie tickets and paid $36.50.

[tex]2x+2y=36.50[/tex]

Owens family bought 5 child and 2 adult tickets and paid $60.50. [tex]5x+2y=60.50[/tex]

Let:

[tex]2x+2y=36.50--eq(1)\\5x+2y=60.50--eq(2)[/tex]

Subtract both equations:

[tex]2x+2y=36.50\\5x+2y=60.50\\- \:\:\: - \:\:\:\:\:\:\:\: -\\--------\\-3x=-24\\x=\frac{-24}{-3}\\x=8[/tex]

So, we get Value of x =8

Now, putting value of x in eq(1) to find value of y

[tex]2x+2y=36.50\\Put \: x=8\\2(8)+2y=36.50\\2y=36.50-16\\2y=20.5\\y=\frac{20.5}{2}\\y=10.25[/tex]

So, we get Value of y = 10.25

So,

Cost of child movie = x = $8

Cost of adult movie = y = $10.25

Answer:

$15.90

Step-by-step explanation:

30% of 53 is 15.90

Answer:

The component form of the vector P'P is [tex]\left \langle -7, 2 \right \rangle[/tex]

Step-by-step explanation:

The component form of the vector that translates P(4, 5) to P'(-3, 7), is given as follows;

The x-component of the vector = The difference in the x-values of the point P' and the point P = -3 - 4 = -7

The y-component of the vector = The difference in the y-values of the point P' and the point P = 7 - 5 = 2

The component form of the vector P'P = [tex]\left \langle -7, 2 \right \rangle[/tex]

Answer:

-0.5 (-1/2)

Step-by-step explanation:

Answer:

m= -1/2

Step-by-step explanation:

Slope formula

m= y2-y1/x2-x1

plug the given points in which are (7,-4) (5,-3)

m= -3-(-4)/ 5-7

m= 1/-2 which can be rewritten as -1/2