me need need help on this math

Answer:

8x+9

Step-by-step explanation:

3(2x+1)+2(x+4)

6x+1+2x+8

8x+9

Answer:

8x-5

Step-by-step explanation:

6x+3+2x-8

You just have to add like values together.

Answer:

Step-by-step explanation:

8d=-72

d=-9

Answer:

575 mm

Step-by-step explanation:

The ratio of perimeters is the same as the ratio of sides.

let x be the perimeter of B then by proportion

[tex]\frac{3}{345}[/tex] = [tex]\frac{5}{x}[/tex] ( cross- multiply )

3x = 1725 ( divide both sides by 3 )

x = 575

Then the perimeter of B is 575 mm

Answer:

40%

Step-by-step explanation:

Each box is worth 20%

You know this because the entierty of the box is 100% and it is divided into 5 groups 100 divided by 5 is 20, thus each box is worth 20%.

Step-by-step explanation:

let jon age be x

dad age is 2 of x i.e 2x

grandpa age is 7 + 3(x)

The sum of jon dad and grandpa age is 145 i.e

x + 2x + (7+3x) = 145

3x +. 7 + 3x = 145

6x = 145- 7

6x = 138

divide both sides by 6

x = 23

jon age is 23

while

grandpa age is

7 + 3(x)

7 + 3(23)

7 + 69

76.

I believe it is D.

brainiest if correct? thnx

Answer:

Its positive

Step-by-step explanation:

3x - 5 = -3

3x = 2

x = 2/3

2/3 is positive

Answer:75x+160

8 is the answer exactly 8

Step-by-step explanation:

Answer:

Set variable d for number of days: 75d + 160 < 760; 75d < 600; d < 8. The van has to be rented for less than 8 days for the family to spend less than $760.

Answer:

x=-7

Step-by-step explanation:

Alrighty. 5x+8=2x-13. Lets do -2x on both sides. We'll get 3x+8=-13. Then lets subtract 8 from both sides. We'll get 3x=-21. Divide by 3 and we'll get x=-7. Hope that makes sense.

Answer:

i think the answer is 7

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Just put the functions over each other and subsitute the values from the functions. The answer should be D if you just sub in the value for f(n) and g(n) respectively.

The solution to the equation y = 5x - 5 is given by the ordered pairs

( 0 , -5 ) , ( 1 , 0 ) , ( 2 , 5 ) , ( 3 , 10 ) , ( 4 , 15 )

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

y = 5x - 5   be equation (1)

On simplifying the equation , we get

Substitute the value of x = 0 in the equation , we get

y = 5 ( 0 ) - 5

y = 0 - 5

y = -5

So , the ordered pair is ( 0 , -5 )

Substitute the value of x = 1 in the equation , we get

y = 5 ( 1 ) - 5

y = 5 - 5

y = 0

So , the ordered pair is ( 1 , 0 )

Substitute the value of x = 2 in the equation , we get

y = 5 ( 2) - 5

y = 10 - 5

y = 5

So , the ordered pair is ( 2 , 5 )

Substitute the value of x = 3 in the equation , we get

y = 5 ( 3 ) - 5

y = 15 - 5

y = 10

So , the ordered pair is ( 3 , 10 )

Substitute the value of x = 4 in the equation , we get

y = 5 ( 4 ) - 5

y = 20 - 5

y = 15

So , the ordered pair is ( 4 , 15 )

Hence , the equations are solved

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ2

Answer:

look at the step by step explanation

Step-by-step explanation:

hey! keep calm okay? i got u.

Okay so for a pack of 12 confetti eggs, you pay $2.88. to find the unit price, or price for 1 egg, you just take 2.88 divided by 12 (which i already did) and you get 0.24. so the price for 1 confetti egg is $0.24 or 24 cents.

James reads 520 words in 2 minutes. Luke reads 960 words in 5 minutes. All we need to find out is how many words can they read in 1 minute? All ewe do is take 520 divided by 2, and you get 260. Then you take 960 divided by 5, and you get 192. so the rates they read at is 260 wpm and 192 wpm.

A shipping and handling fee is 35.00 right? so what you want to find is “35.00 is what percent of 437.50?” and if you think about it and go through it, 35 is 8% of 437.50. so 8% of the total is the shipping and handling fee!

good luck! i hope this helped!

Step-by-step explanation:

7x= 180-x

7x+x= 180

8x= 180

x= 22.5

the angle is 22.5

its supplementary angle is 157.5

Answer:44.44%

Step-by-step explanation:Take the absolute value of the difference fof the two and then divide by the first number:

Answer:

let the two number be x and y then,

x+y=12

x-y=-4

-----------

2x=8

or, x = 4 put the value of x in first equation

4+y= 12

or, y=12-4

or, y= 8 hence the two number is 4 and 8

1st one on top is 100 and 3rd one on top is 6.

a. Dilation of 2nd equation by a factor of 12

b. The systems have the same solution, as dilations do not affect overall coordinates, changing side lengths but not angles

Answer:

Step-by-step explanation:

1.) 5

2.) 32

3.) 14

4.) 16

It's the associative property. One way to remember the associative property is that the numbers don't change, but the location of the numbers change.

Answer:

ok thx

Step-by-step explanation:

Answer:

-5.4 + 2.52h

Step-by-step explanation:

Answer:

root3/ root2

Step-by-step explanation:

since this is a special right triangle (45, 45, 90) we can use right triangle rules. Basically, C in my photo is equal to the hypotenuse while A and B are equal to the sides. You can substitute your hypotenuse into the formula I gave you to find x.

B = C / root2

x = root3 / root2

hope this helped a little bit

Answer:

Please check the explanation.

Step-by-step explanation:

The slope-intercept form of the linear function  

[tex]y = mx+b[/tex]

where

The graph of y = mx + b is a straight line. Thus, y = mx + b represents a linear function.

Analzing the function y = –x + 5

Given the linear function

y = –x + 5

comparing with the slope-intercept form of linear equation

The slope m = -1

The y-intercept b = 5

Also, the graph of a linear function is a straight line.

Thus,

The function  y = –x + 5 represents  a linear function.

Analzing the Table Function

x        0     1     2     3

y        0     1     8     27

In order to identify whether the given table represents the linear function or not, we need to make sure the given function has a constant change x and y.

If there is a constant change in x and y, then it would be a linear Function otherwise it would not represent a linear function.

There is a constant change in x values.

i.e.

1 - 0 = 1

2 - 1 = 1

3 - 2 = 1

But, there is NOT a constant change in y.

i.e.

1 - 0 = 0

8 - 1 = 7

27 - 8 = 19

It is clear that the table does not have a constant change in y-values.

Therefore, the table function does not represent the linear function

Step-by-step explanation: its a+b which equals 182

Answer:

X=y

x/y+2=3 because

Y+Y+Y=3 so

X=Y+Y+Y=3

Answer:

No se

Step-by-step explanation:

pero okueuekdnfjdbebf

Answer:

y=2x2−8x

y=2x2−8x

Step-by-step explanation:

Xmin:

-10

Xmax:

10

Ymin:

-10

Ymax:

10