-3(n+9)=15
i need the step of solving this plzz brainliest if right!!

Answer:

1.53

Step-by-step explanation:

3.35 - 0.8 = 2.55

2.55 - 1.02 = 1.53

Answer: 110 cm ^2 is the correct answer plz brainliest

Step-by-step explanation:

Answer:

6/3+2/3= 8/3 = 2 2/3

8/3+2/3= 10/3 = 3 1/3

10/3+2/3=12/3 = 4

12/3+2/3=14/3 = 4 2/3

14/3+2/3=16/3 = 5 1/3

16/3+2/3=18/3 = 6

18/3+2/3=20/3 = 6 2/3

20/3+2/3=22/3 = 7 1/3

22/3+2/3=24/3 = 8

24/3+2/3=26/3 = 8 2/3

26/3+2/3=28/3 = 9 1/3

28/3+2/3=30/3 = 10

30/3+2/3=32/3 = 10 2/3

32/3+2/3=34/3 = 11 1/3

34/3+2/3=36/3 = 12

36/3+2/3=38/3 = 12 2/3

Answer:

60

Step-by-step explanation:

6

Answer:

90

Step-by-step explanation:

Answer:I think its 90

Step-by-step explanation:

Answer:

Unit rate for number 1 is 0.5

Step-by-step explanation:

Answer:

B. 35 dollars

Step-by-step explanation:

So first you have to subtract 20 from 160 because that is the only cost that we definitely know. 160-20=140

Then you have to divide 4 from 140 because the sweaters cost the same amount and she bought 4 of them and 140 divided by 4 is 35

So each sweater coat 35 dollars

Answer:

-512

Step-by-step explanation:

The laws of exponents state that multiplying two exponents together of the same base allows you to add the exponents. Raising an exponent to another power allows you to multiply the exponents. In this case. you have [tex](-2)^3*((-2^3))^2[/tex]. First, you  take the second term, or [tex]((-2^3))^2[/tex] and simplify it. Since you're raising an exponent to another exponent you have [tex](-2)^(3*2)[/tex], or [tex](-2)^6[/tex]. Now, you multiply by [tex](-2)^3[/tex]. Since they both have the same base, you can add the exponents to get [tex](-2)^9[/tex]. Since [tex](-2)^9[/tex] is raised to an odd exponent, you know you're answer is going to be negative. [tex]2^9[/tex] is 512, so that negative would be -512. If you're looking for an expression for this, you can write [tex](-2)^9[/tex]

Answer:

D

Step-by-step explanation:

Answer:

Shelby will pay 141.55 dollar tax.

Answer:

I think is 2 the next even integer or 3

Step-by-step explanation:

the next even integer . is the ans-

Answer:

ok

Step-by-step explanation:

you should know: in all means in total, so simply you add everything up.

answer:

1 + 2/4 + 3/4

- convert 1 to a fraction so its easier to add.

1 = 4/4 (must have the same denominator to add)

4/4 + 2/4 + 3/4

- add the numerators (top), NOT the denominators (bottom)

you get: 9/4 (this is an improper fraction, so you convert this into a mixed number)

9/4 = 2 1/4

FINAL ANSWER: (its a mixed number)

2 1/4

-- let me know if you have any questions regarding this.

Answer:

−7≤a≤8

Step-by-step explanation:

Here's a quick step by step hope this helps!

Answer:

x = 3

x - 2y = -25

Step-by-step explanation:

Since y = 4x + 2 put (4x + 2) into the first equation in place of y:

6x - (4x + 2) = 4

To get rid of the parenthesis change 4x to -4x and 2 to -2:

6x - 4x - 2 = 4

If you combine the x’s you will now have only 2x

2x - 2 = 4

To get x by itself we add 2 to both sides

2x = 6

Divide by 2 on both sides:

x = 3

_______________________________

For the last equation (x - 2y) we put (4x + 2) in place of y again:

x - 2[4x + 2]

We know the value of x already:

3 - 2[4(3) + 2]

Now solve for the things in parenthesis:

3 - 2(14)

3 - 28

Subtract to get the answer:

-25

Answer:

[tex]Point Form:(1,2)\\Equation Form:x=1,y=2[/tex]

Step-by-step explanation:

Let's solve your system by substitution.

[tex]6x-y=4;y=4x+2x-2y[/tex]

Step: Solve 6x−y=4for y:

[tex]6x-y=46x-y+-6x=4+-6x[/tex]

[tex]-y=-6x+4[/tex]

[tex]\frac{-y}{-1} =\frac{-6x+4}{-1}[/tex]

[tex]y=6x-4[/tex]

Step: Substitute 6x−4 for y in y=6x−2y:

[tex]y=6x-2y\\6x-4=6x-2(6x-4)[/tex]

[tex]6x-4=-6x+8[/tex]

[tex]6x-4+6x=-6x+8+6x\\12x-4=8\\12x-4+4=8+4[/tex]

[tex]12x=12\\\frac{12x}{12} =\frac{12}{12}[/tex]

Step: Substitute 1 for x in y=6x−4:

[tex]y=6-4\\y=(6)(1)-4\\y=2[/tex]

Answer:

[tex]x=1 , y=2[/tex]

Hope this helps :)

-ilovejiminssi♡

Answer:

A.

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

Answer: 6 I hope this helped :)

Step-by-step explanation:

Answer: 7( b-1)

Step-by-step explanation: I think

Answer:

7(b-1)

Step-by-step explanation:

-5 3/4 can be rewritten as -23/4 and 3 1/2 can be rewritten as 14/4. -23/4 minus 14/4 is -37/4 or -9 1/4

Answer:

-9 1/4

Step-by-step explanation:

3 1/2 = 3 2/4

-5 3/4 - 3 2/4 = -9 1/4

Answer:

xy + 2x + 2y = (42)(80)

x2 + 80x - 42 = 0

x2 - 42x + 80 = 0

x2 - 21x + 80 = 0

Step-by-step explanation:

The dimensions of the rectangle ABCD is 24 x 16

The perimeter P of a rectangle is given by the formula, P=2 ( L + W) , where L is the length and W is the width of the rectangle.

Perimeter P of rectangle = 2 ( Length + Width )

Given data ,

Let the dimensions of the rectangle be represented as L x W

where L and W are the length and width of the rectangle

The perimeter of the rectangle P = 80

Now , measure of side E F of triangle is given by the Pythagoras Theorem

And , E F = √ ( A F )² - ( E A )²

On simplifying the equation , we get

The measure of side E F = √ ( 625 - 400 )

The measure of side E F = √225 = 15

Now ,

The measure of side EC of triangle is given by the Pythagoras Theorem

And , EC = √ ( E F )² - ( C F )²

On simplifying the equation , we get

The measure of side E C = √ ( 15 )² - ( 9 )²

The measure of side E C = √ ( 225 - 91 )

The measure of side E C = √144

The measure of side E C = 12

So , the length of the rectangle B C = E B + B C = 12 + 12

The length of the rectangle B C = 24

The width of the rectangle is A B = W

Perimeter P of rectangle = 2 ( Length + Width )

Substituting the values in the equation , we get

80 = 2 ( 24 + W )

Divide by 2 on both sides of the equation , we get

24 + W = 40

Subtracting 24 on both sides of the equation , we get

W = 16

Hence , the dimensions of the rectangle is 24 x 16

To learn more about perimeter of rectangle click :

https://brainly.com/question/15725265

#SPJ2

Answer:

Step-by-step explanation:

Answer:

w

_ +3

2

Step-by-step explanation:

this should be the answer