I need hellp please help me

Step-by-step explanation:

m² -12 = m

m² = m + 12

m = [tex]\sqrt{m + 12\\}[/tex]

Answer:

Step-by-step explanation:

a + c = 17 + 7 = 24.

a - 2c = 17 - 2(7) = 3.

9514 1404 393

Answer:

  (b)  38.5

Step-by-step explanation:

The polygon is a trapezoid with bases 4 and 7 and height 7. Its area is given by the formula ...

  A = (1/2)(b1 +b2)h

  A = (1/2)(4 +7)(7) = 77/2

  A = 38.5 . . . . square units

Give the other person brainiest pls because they were right I know because I took test and they helped me :)

Answer:

x=1/2 I'm not sure it may be wrong

Answer:

The question to the question provided is

[tex] \frac{1}{2} [/tex]

Answer:

$19.50

Step-by-step explanation:

Turn the %15 into a decimal

130 x 0.15 = 19.50

They left $19.50 as their tip.

Answer:

The correct answer is 5 11/12

Step-by-step explanation:

HAVE A GOOD DAY!

Answer:

cost of one notebook:  72/48 = $1.50

10% mark up = $1.50 x 0.10 = 0.15 cents

retail price = $1.65

Step-by-step explanation:

Answer:

The equation should look like c=1.59 times a

Step-by-step explanation:

if it cost 1.59 dollars per pound of apple it is going to be a multiplication problem so then you fill in the blanks, A standing for per pound of apples and C representing total cost

Answer:

x = 5, y = -1

Step-by-step explanation:

2x+3y=7

4x-5y=25

Keep the second equation the same, but change the first equation so you have something to substitute into.

3y= -2x+7

y= -2/3x + 7/3

substitute into second equ.

4x + 10/3x - 35/3 = 25

put the variables on one side, and the numbers on the other.

22/3x = 110/3

divide by 3

22x = 110

x = 5

Substitute x = 5 into the first equation,

10 + 3y = 7

move numbers to one side, and variables to the other.

3y = -3

y = -1

Answer:

x = 5, y = - 1

Step-by-step explanation:

2x + 3y = 7

4x - 5y = 25

In the second equation, solve for y in terms of x:

4x - 5y = 25

- 5y = 25 - 4x

- y = 5 - 4x/5

y = - 5 + 4x/5  Now substitute this for y in equation 2x + 3y = 7

2x + 3(-5 + 4x/5) = 7

2x - 15 + 12x/5 = 7

10x/5 - 15 + 12x/5 = 7

22x/5 = 7 + 15

22x/5 = 22  Now multiply both sides by 5/22 to isolate :

x = 5

Now substitute this value (x = 5) into 4x - 5y = 25 to solve for y:

4(5) - 5y = 25

20 - 5y = 25

- 5y = 5

y = - 1

You can check that these are correct by substituting x = 5 and y = -1  into the above equations to make sure they check out.

Answer:

8w-3

Step-by-step explanation:

Is that what you were looking for?

first add 25 and 5 and divide 960 by 30

Answer:

The equation of the second line is;

y = 4x - 27

Step-by-step explanation:

Firstly, we need the slope of the first line

To get the slope, we need the equation in the general form of ;

y = mx + c

where m is the slope of the line

Thus, we have in this case, to divide through by -5

That will give the slope value as -5/20 = -1/4

If two lines are perpendicular, the product of their slopes is -1

The slope of the line we want to calculate, let us call it m

m * -1/4 = -1

-m = -4

m = 4

So we want to write the equation of a line with slope 4 and point (8,5)

We proceed to use the point-slope form

That will be;

y-y1 = m(x-x1)

y-5 = 4(x-8)

y-5 = 4x-32

y = 4x -32 + 5

y = 4x -27

Answer:

Step-by-step explanation:

8+5+9.4= 22.4

100n+22.4

100(3.14)+22.4= 336.4

I gave you this to help you, if you know how much is in each paint cans, than divide that number with 336.4, and you'll get your answer.

Answer:

[tex]y=24,[/tex] when [tex]x=1[/tex].

Step-by-step explanation:

Given: [tex]y=4x+20[/tex]

To find: Value of [tex]y[/tex], substituting the known value of [tex]x[/tex]

We have,

[tex]y=4x+20 ...(i)[/tex]

Putting [tex]x=1[/tex] in equation [tex](i)[/tex], we get

[tex]y=4(1)+20[/tex]

[tex]\implies y=4+20[/tex]

[tex]\implies y=24[/tex]  

Hence, the value of [tex]y[/tex] is [tex]24[/tex], when the value of [tex]x[/tex] is [tex]1[/tex].

Answer:

A class has 10 science students, both of Physics and Biology.

If Biology group has 3 students, what's the number of students in the Physics group?

Answer:50

Step-by-step explanation:

7.5 x 2 = 15

25 x 2 = 50

Answer:

You have 4 digits with which to work. The digits can be placed:

1st position: 4 possible digits

2nd position 3 possible digits

3rd position 2 possible digits

4th position 1 possible digit

Total permutations equal

4 * 3 * 2 * 1

which equals

24

Step-by-step explanation:

Answer:

is it 8x

i'm not sure

Step-by-step explanation:

Answer:

( E ) = 18x

Step-by-step explanation:

According to question,

2/3 ( E ) = 12x [ Here ( E ) is the expression]

2 ( E ) = 36x

( E ) = 36/2 x

( E ) = 18x

Hope it helps.......

Answer:

Distance between New Delhi and Kota = 388 kilometers

Step-by-step explanation:

Given that:

Average speed of express train = 97 kilometer per hour

Time taken to travel  = 4 hours

Distance between New Delhi and Kota = Speed * Time

Distance = 97 * 4

Distance = 388 kilometers

Hence,

Distance between New Delhi and Kota = 388 kilometers

Answer: 36.00

Step-by-step explanation:

Divide 36.00 by 10 and You Simply Get 3.60

Hope this Helps :DD

Answer:

a. p=421−376/376

Step-by-step explanation:

Computation for Which equation shows how to find the percent increase

Percentage increase=421-376/376*100

Percentage increase=45/376*100

Percentage increase=11.968%

Percentage increase=11.97% (Approximately)

Based on the above calculation The equation that will shows how to find the percent increase of the town's population of children from 376-421 during the past year will be:p=421-376/376

Answer:

First, you did not exactly state what the original price was or maybe that's how the question is worded, but in this scenario the original price of the freezer would be x because they did not tell us.

Step-by-step explanation:

A 20 percent discount is 0.20 in decimal format. For example if the original price was $20, then you would multiply 0.2 by $20 to get $4.00. In this question i would say the original price would be x, so then it would be 0.2x.

Hope this helps:)

Answer:

5

Step-by-step explanation:

Answer:

11. Coordinates of the meeting point 18,24

12.equation for line R, y= -2x/5-4

equation for line E,y=2x/5+12

13. 1,3, 4,5,10,13 ,15

14.70°

15. AC= 47

Step-by-step explanation:

I'm pretty sure about the answers. Please consider making brainliest. Thank you

Answer:

y=mx

this is the answer y=1x

Answer:

no its not

Step-by-step explanation:

x-11 is only supposed to have one y.

if its a funtion then x should only have one line comming out of it. if its not a finction then x has two lines coming out of it.

Answer: no because the x axis dont equal or match up with the y axis and because theres not a certain amount of numbers for it to equal to or match to.

Step-by-step explanation:

A function is a relation in which each input has only one output. In the relation , y is a function of x, because for each input x (1, 2, 3, or 0), there is only one output y. x is not a function of y, because the input y = 3 has multiple outputs: x = 1 and x = 2.            please give me brainliest

Answer:

Sheldon had 2 7/12 kg left

4 1/4 - 1 2/3 = 3 1/4 - 2/3

= 3 3/12 - 8/12

= 2 15/12 - 8/12

= 2 7/12

Hope this helps! have an amazing day :)

Answer:

A:30

Step-by-step explanation:

because 3+2(the ratio) =5

75(the total number or both) divide by 5

so 1 ratio=15

15 x 2(the ratio of dogs)

=30