Someone pls help me!!! (7th grade math work) will mark as Brainliest
SHOW WORK PLSSSSKSKSKS

Answer:

f(-9)= 2.6

Step-by-step explanation:

3/5*-9= -5.4

-5.4+8= 2.6

Answer:

Substitute the value of the variable into the function and simplify.

-9f

Step-by-step explanation:

Answer:

You are simply dividing a by 3 to reach y each time!

Step-by-step explanation:

Step-by-step explanation:

let x be the number of adults and y number of childrens

so we have. x+y=100 people

and. 12*x+8*y=1056 dollars

x=100-y

replace 100-y to the second equation

12*(100-y)+8y=1056

1200-12y+8y=1056

1200-4y=1055

1200-1056=4y

144=4y

y=144/4=36

so x=100-y=100-36=64

so in this group were 64 adults and 36 childrens

In this group were 64 adults and 36 children.

In mathematics, a system of linear equations (or linear system) is a collection of one or more linear equations involving the same variables.

let x be the number of adults and y number of children

so we have. x + y = 100 people

and. 12 × x + 8 × y = 1056 dollars

x=100 - y

replace 100 - y to the second equation

12 × (100 - y) + 8y = 1056

1200 - 12y + 8y = 1056

1200 - 4y = 1055

1200 - 1056 = 4y

144 = 4y

y = 144/4 = 36

so x = 100 - y = 100 - 36 = 64

Hence, in this group were 64 adults and 36 children.

To learn more about system of equations from here

https://brainly.com/question/12895249

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Answer:i think 8

Step-by-step explanation:

Two Angles are Supplementary when they add up to 180 degrees. They don't have to be next to each other, just so long as the total is 180 degrees.

Answer:

the answer is 4x 5y -5x -4y

Step-by-step explanation:

Answer:

I believe the answer is B. Six problems per hr (hour)

Answer: 40 students

Step-by-step explanation: All we need to do is do 16/40 to get 0.4 or 40%. So 100% = 40.

Answer:

Time, t = 9.615 secs.

Explanation:

Speed can be defined as distance covered per unit time. Speed is a scalar quantity and as such it has magnitude but no direction.

Mathematically, speed is given by the equation;

[tex]Speed = \frac{distance}{time}[/tex] ....equation 1

[tex]Time = \frac{distance}{speed}[/tex] .....equation 2

Given the following data;

Distance = 100m

Speed = 10.4m/s

Substituting into equation 2;

[tex]Time = \frac{100}{10.4}[/tex]

Time, t = 9.615 secs.

Answer:

I HAVE THE SAME THING

Step-by-step explanation:

Answer:

Perimeter of the hexagon is 36 units

Step-by-step explanation:

if the length is ten using the information provided you  will get a perimeter of 36 for both

Answer:

36

Step-by-step explanation:

Hope it helps :)

Brainliest pls?

Answer:

320, 900

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

ALL integers are rational numbers. However, NOT all rational numbers are integers

Answer:

The translation is left 1 unit, up 5 units ⇒ A

Step-by-step explanation:

Let us revise the rules of translation of a function

The vertex form of the quadratic function is f(x) = ax² + bx + c, where a, b, and c are constant is f(x) = a(x - h)² + k, where h = [tex]\frac{-b}{2a}[/tex]  and k = f(h)

You will use the vertex form to find the translation

∵ g(x) = x² + 2x + 6

∴ a = 1 and b = 2

→ use the rule of h to find it

∴ h = [tex]\frac{-2}{2(1)}=\frac{-2}{2}[/tex]

∴ h = -1

→ Use it to find k

∵ g(h) = k

∴ k = g(-1)

→ Substitute x by -1 in g to find k

∴ k = (-1)² + 2(-1) + 6 = 1 - 2 + 6

∴ k = 5

→ Substitute the values of h and k in the vertex form above

∴ g(x) = 1(x - -1)² + 5

∴ g(x) = (x + 1)² + 5

→ By using the 2nd and 3rd rules of translation above

∴ f(x) is translated 1 unit to the left and 5 units up

∴ The translation is left 1 unit, up 5 units

The translation that maps the graph is mathematically given as

"The translation as left 1 unit, up 5 units"

Translation is simply defined as the communication of the meaning of source content into target-content.

Generally, the equation for the  vertex form  is mathematically given as

g(x) = x² + 2x + 6

Where

a = 1 and b = 2 and h=-1

g(h) = k

k = g(-1)

k = (-1)² + 2(-1) + 6

k= 1 - 2 + 6

k = 5

In conclusion

g(x) = (x + 1)^2 + 5

Giving the translation as left 1 unit, up 5 units

Read more about Arithmetic

https://brainly.com/question/22568180

Answer:

[tex]9 + 7 = 9 - (-7)[/tex]

Step-by-step explanation:

[tex]9 - (-7) \: is \: same \: as \: (9) + (7)[/tex]

Answer:

n=1

Step-by-step explanation:

5+4(8n-8)=-1+6

5+32n-32=5

5+32n-32=5

-27+32n=5

32n=32

n=1

Answer:

n = 1

Step-by-step explanation:

5 + 4(8n - 8) = -1 + 6

First you have to distribute the 4 leaving the equation to look like this...

5 + 32n - 32 = -1 + 6

Now solve the constants (normal numbers without a variable)

-27 +32n = 5

+27            +27  You have to add 27 to BOTH sides

32n = 32

n = 1

Hope this helps and have a great day!

Answer:

Step-by-step explanation:

2 | 250

5 | 125

5 | 25

5 | 5

1 | 1

250 = 2 × 5 × 5 × 5

It will be nice if you give me brainliest. Good luck!

287 centimeters is 112.992 inches

Answer:

112.992

Step-by-step explanation:

divide the length value by 2.54.

Answer:

1 Angle A is 44, 2 angle A is 20.

~~~~~~~~~~~~~~~~~~~~~~~~~~~

The Equation for 1 is x + 45 + 82 + x + 65 = 180 x = -1 A = 44 Degrees

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The Equation for 2 is x + 21 + 130 + x + 31 = 180  x = -1  Angle A = 20 Degree

~~~~~~~~

Bye have a nice day :)

Answer:

1

Step-by-step explanation:

Answer:

I dont think there an answer to that question can you tell us the options

Answer:

Step-by-step explanation:

When the second bus catches up to the first bus, this means that the distance they have travelled is equal.

So for bus 1, you know it travels at 40 miles per hour.

4pm = 0 miles

5pm = 40 miles

6 pm = 80 miles

7pm = 120 miles

For bus 2, you know it travels at 60 miles per hour

5pm = 0 miles

6pm = 60 miles

7pm = 120 miles.

So you can see that at 7pm, they will both have travelled 120 miles.

Answer:

please rotate the picture*

Answer:

Ayo dood whats the ?

Step-by-step explanation:

Answer:

Julio's number is 31.

Step-by-step explanation:

Okay, so -70 divided by -5 is 14.

14 plus 17 equals 31.

If you subtract 17 from 31, you get 14.

Then, if you multiply 14 times -5, you get -70.

Step-by-step explanation:

Multiply 3x-6

Rearrange y=10/3x-6

slope=10/3 x

Answer -10x 2- 11x +1 (2 as a exponent) im not completely sure if its right but i tried

Step-by-step explanation:

Step-by-step explanation:

here it is

hope u get it

don't forget to change the signs when u trasfer the terms

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

Since those two angles are corresponding that means they are equal to each other so we write an equation like this...

[tex]7x+9=8x+2[/tex]

Now we solve for x...

[tex]7x+9=8x+2\\9=x+2\\x=7[/tex]

And that's it x will equal 7.