Here’s the picture for it

Answer:

B

Step-by-step explanation:

2 miles in 1/2 hours = 4mi/h

2÷½=2×2=4

Answer:

B

Step-by-step explanation:

You can not divide 1/2 and 2 you have to do 2/1 divide it by 1/2 reduce it and you get the answer.

Answer:

X= -5

Step-by-step explanation:

5x -3 = -28

Add 3 to both sides

5x= -25

divide by 5 on both sides to isolate x

x=-5

Answer:

v=16/3

Step-by-step explanation:

3(2v-9)=5

Multiply 2v and -9 with 3

6v-27=5

Add 27 to both sides

6v=32

Divide both sides by 6

v=16/3

Answer:

[tex]\Huge \boxed{-50}[/tex]

Step-by-step explanation:

25 is subtracted from -25.

[tex]\Rightarrow -25-25 \\ \\ \\ \Rightarrow -50[/tex]

The value is -50.

Answer:

144

Step-by-step explanation:

Subtract 2 from 7 to get 5.

5×24+34−10=144

Multiply 5 and 24 to get 120.

120+34−10=144

Add 120 and 34 to get 154.

154−10=144

Subtract 10 from 154 to get 144.

The result of the given expression is 144

Expression has different terms separated by mathematical signs

Given the expression

(7−2)24+34−10

Using the PEDMAS rule

Parethesis first to have:

(7−2)24+34−10

= 5(24) + 34 - 10

Followed by multiplication

= 120 + 34 - 10

Then followed by Addition

= 154 - 10

Finally subtraction

154 - 10 = 144

The result of the given expression is 144

Learn more here: https://brainly.com/question/17788156

Answer:

coffee is the best answer in my mind

Answer:

It would be losing 300.

Step-by-step explanation:

The opposite of gaining is losing the integer would be -300

Answer:

-300

Step-by-step explanation:

Answer:

no

Step-by-step explanation:

Answer:

78

Step-by-step explanation:

Mode = number that appears most in a set of numbers

The number that appears the most in this set is 78. So, the mode is 78. Hope it helps!

Answer:

Step-by-step explanation:

arrange in ascending order

39,43,43,50,55,61,75,78,78,78

mode=78

Answer:

Step-by-step explanation:

B

One day is equivalent to 86400 seconds.

So 86400÷20=4320 gallons

Answer:

See explanation

Step-by-step explanation:

Usually, I just find the quadratic formula the easiest to go, but here are some tips to tell if which you should use.

1. First see if you can get integer values for the roots to multiply to c and add to b.

This is the easiest way to solve a quadratic equation, and I always check for whether I can easily find the roots by multiply two numbers for c and adding them for b.

For instance, the Quadratic [tex]x^2 + 5x + 6[/tex]

I can easily see that 2 and 3 are the roots here - as [tex]2\cdot3=6[/tex] and [tex]2+3=5[/tex]. If you can do this and receive integer values, then great! I'd definitely stick with this.

2. See if you can complete the square

If you have a quadratic which is a perfect square, you'll be able to tell if c is a perfect square, and b is twice that number. This will be easiest. Any quadratic equation can be solved by completing the square, but I personally stick to this method only if I can tell it's a perfect square quadratic.

3. Stick to the Quadratic Formula

If all else fails, go with the Quadratic formula. It's not that hard and it gets the job done. I would highly discourage going with graphing, as it takes too much time and it's quite a hassle unless you have a graphing calculator.

I really hope this helped!

Answer:

In my preferred order, ...

Step-by-step explanation:

My personal favorite is to use a graphing calculator. If it shows the zeros are whole numbers, your solution is at hand. If it shows the zeros are recognizable decimal fractions*, the solution is also at hand. If it shows the zeros are unrecognizable as fractions, they are likely irrational. Then the vertex of the graph gets you most of the way to an exact solution.

If the quadratic's coefficients are not integers, then the quadratic formula is least likely to give difficulty.

Example

The attached is a graph of the quadratic ...

  y = 2x^2 -3x -4

We can see from the x-intercepts that the roots are irrational (none are fractions with a denominator that is a factor of 2). The vertex of the graph is (3/4, -5 1/8), so the vertex form of the equation for this graph is ...

  y = 2(x -3/4)^2 -(5 1/8)

Solving this for y=0, we find ...

  0 = 2(x -3/4)^2 -(5 1/8)

  5 1/8 = 2(x -3/4)^2 . . . . . .add the constant (vertex y-value)

  (5 1/8)/2 = (x -3/4)^2 . . . . divide by 2 (the leading coefficient)

  2 9/16 = (x -3/4)^2

  x = 3/4 ± √(41/16) . . . . . . . add the horizontal offset (vertex x-value)

  x = (3 ± √41)/4 . . . . . . . . . . simplify

If you see what we've done here, you can write down the answer from the vertex and the leading coefficient:

  x = (3/4) ± √((5 1/8)/2) . . . . . vertex (3/4, 5 1/8), leading coefficient 2

__

With a little practice, factoring can be a relatively simple way to find the solution. As a preliminary step, the equation should be divided by any common factor of the coefficients, so they are all relatively prime. It helps immensely to know your times tables thoroughly. I like this method, because it can get a solution with fewer steps than using the quadratic formula.

The product of two binomials is ...

  (ax +b)(cx +d) = acx^2 +(ad+bc)x +bd

The product of the leading coefficient (ac) and the constant (bd) is abcd. It has factors of ad and bc, whose sum is the coefficient of the linear term. So, if you can factor the product of the leading and trailing coefficients and find a sum of factors that is the middle coefficient, you're home free. Sometimes the factors jump out at you, and sometimes you need to list a bunch of them before you see what you need.

In our example, we would be looking for factors of 2(-4) = -8 that have a sum of -3.

  -8 = (-8)(1) = -4(2) = (-2)(4) = (-1)(8)

These pairs have sums of -7, -2, 2, 7. None of the sums is -3, so factoring by integers is not possible. You can see that it is unnecessary to list the pairs with positive sums in this case.

Once you have the values ad and bc, you can see that 'a' is the greatest common divisor of ac and ad. Then ad/a = d, and ac/a = c. Now you know 3 of the 4 numbers in the binomial factors.

_____

* The Rational Root Theorem can tell you what reasonable fractions might be for your quadratic. You should be familiar with the decimal equivalents of fractions with small integer denominators.

Answer:

[tex]x=24.5\\[/tex]

Step-by-step explanation:

So we have the equation:

[tex](5x-25)+(3x+9)+180[/tex]

Combine like terms:

[tex](5x+3x)+(-25+9)=180[/tex]

Add:

[tex]8x-16=180[/tex]

Add 16 to both sides:

[tex]8x=196[/tex]

Divide both sides by 8:

[tex]x=24.5\\[/tex]

So, our answer is 24.5 :)

Answer:

$257

Step-by-step explanation:

First we multiply the rate by time

8.5*32=$272

then we subtract the uniform fee

272-15=$257

(plz give brianliest ty)

Answer:

8.50x-15

Step-by-step explanation:

Flat rate is 15 so you subtract from income made. 8.50x is how much you make depending on how many hours you work. Thus income-fee= how much you make first week.

Answer:

15+n

Step-by-step explanation:

Let the number be 'n'

Fifteen=15

increased by= +

a number= n

Hope this helps ;) ❤❤❤

Answer:

It could be 15+ (any varible)=?

Step-by-step explanation:

Answer:

7m = Total #of players

Step-by-step explanation:

Answer:

The scalar used does not exist in the real number system.

Step-by-step explanation:

The ratio 16:14 is not equivalent to the ratio 64:60 because the scalar used does not exist in the real number system.

Note, that the ratio 64:60 can be scaled down by 4 to be the ratio 16:15, which is not the ratio 16:14.

In order to scale 64:60 to 16:14 or vise versa, you'd have to use a number that simply does not exist in the real number system.

Cheers.

Answer:

2x5-4x2-25

Step-by-step explanation:

First you distribute the negative sign to the second equation which makes each number it's opposite

Which would result in 4x5-13x2-10-2x5+9x2-15

Then you combine like terms and get 2x5-4x2-25

Answer:

-23

Step-by-step explanation:

Area of a rectangle= length*width

So:

Area of the playground= (6x)(4x+4)

Use distributive property.

Area of the playground= (6x*4x)+(6x*4)

=24x^2+24x

Answer: 24x^2+24x

Answer:

I think it's five but I'm not sure

it could be -5 or 5  but I think it it is -5

Answer:

-5

Step-by-step explanation:

Slope is change in y/change in x. You are going down 5 units and to the right one unit so -5/1 =-5.

Answer:

k=23

Step-by-step explanation:

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    k-8-(15)=0  

Step by step solution :

STEP

1

:

Solving a Single Variable Equation

1.1      Solve  :    k-23 = 0  

Add  23  to both sides of the equation :  

                     k = 23

One solution was found :

k = 23

Answer:

Mauricio nació en el año 2000.

Step-by-step explanation:

Supóngase que el cumpleaños se celebra en el año 2020, si [tex]x[/tex] es la edad actual de Mauricio, entonces la expresión matemática que traduce el enunciado del problema es:

[tex]\frac{(x+13)-10}{23} +20 = 21[/tex]

Ahora, se desarrolla y se simplifica la ecuación:

[tex]\frac{x+3}{23}+20 = 21[/tex]

[tex]\frac{x+3}{23} = 1[/tex]

Se despeja [tex]x[/tex]:

[tex]x +3 = 23[/tex]

[tex]x = 20[/tex]

Mauricio tiene 20 años.

Ahora, el año de nacimiento de Mauricio es la sustracción de la edad de Mauricio del año actual:

[tex]y = 2020-20[/tex]

[tex]y = 2000[/tex]

Mauricio nació en el año 2000.

Answer:

Angle A is 30

Angle B is 150

Step-by-step explanation:

So we have the supplementary angles A and B. In other words:

[tex]A+B=180[/tex]

We are also told that Angle B is 30 more than four times Angle A. In an equation, this is:

[tex]B=30+4A[/tex]

We now have a system of equations. Solve by substitution of B into the first equation:

[tex]A+B=180[/tex]

[tex]A+(30+4A)=180[/tex]

Combine like terms:

[tex]5A+30=180[/tex]

Subtract 30:

[tex]5A=150[/tex]

Divide by 5:

[tex]A=30[/tex]

So, Angle A is 30 degrees.

And since the angles are supplementary, this means that Angle B is 180 minus 30 or 150 degrees.

Answer: The formula solved for L is E/100M = L.

Step-by-step explanation:

So far we have the givens:

E, is measured by the formula E = 100M/L, where M = number monsters and L= level of monsters and solve for L.

Thus, isolate L to solve for it.

E = 100M/L

Divide each side by 100M to get rid of it and to free L.

E/100M = L

Hence your answer!

Answer: 50M/E is correct

Step-by-step explanation: I got it right :D

Answer: The donated $18

Step-by-step explanation:

If each jacket cost $150  then multiply 150 by 4 to find out the total that the store received.

150 * 4 = 600  

Now find 3% of 600 to find out how much they donated to the charity.

3% * 600 = $18

Step-by-step explanation:

I try my best I not a math expert

Answer:

y =  2w / x^2.

Step-by-step explanation:

w = 1/2x^2 y

We divide both sides by 1/2 x^2

y = w / (1/2 x^2)

y =  2w / x^2.