Mai runs 3 laps around the track in 4 minutes. How many laps per minute is
that?

Answer:

$1550

Step-by-step explanation:

Given the price of mgCl per ton of metal to be $155, that is;

1 ton of metal = $155

To find the cost of 10 ton of alumininum, we will say;

10 ton of aluminum = x

Equating both expressions;

1 ton of metal = $155

10 ton of aluminum = x (note that aluminum is a metal)

Cross multiply;

1 * x = 155 * 10

x = 1550

Hence 10 tons of aluminum will cost $1550

Answer:

Quadratic

Binomial

with degree 2

Step-by-step explanation:

We perform the multiplication of binomials indicated and get to the expression:

[tex](-5x^2-2x+4)+(8x^2-x-1)-(x^2-3x-10)\\(-5x^2-2x+4)+(8x^2-x-1)-x^2+3x+10[/tex]

and combining like terms we obtain:

[tex]-5x^2-2x+4+8x^2-x-1-x^2+3x+10=\\=2x^2+0x+13 =2x^2+13[/tex]

which is a Quadratic Binomial with a degree of "2"

Answer:

no

Step-by-step explanation:

iam sure they are not congruent

Answer:

lamo ko dari moji sandi ko nuti ani teri nani l

Answer:

This is my best solution for your question

Answer:

555

Step-by-step explanation:

78.5 nearest to 79

634 - 79 = 555

it said how many will she exactly be left over.

I think the answer will be 555 .

Answer:

-3/2, y=2

Step-by-step explanation:

Answer:

-7/12

Step-by-step explanation:

-5-2 = -7    y

and

8- (-4)=12    x

Answer:

slope = -1/4

Step-by-step explanation:

m = (y2-y1)/(x2-x1)

m = (-5-(-2))/(8-(-4)

m = -3/12

m = -1/4

Hope this helps!    :3

plz mark as brainliest!

Answer:

x ≤ 22

Step-by-step explanation:

≤ means less than or equal to

≥ means greater than or equal to

Answer: (-oo, to 22)

Answer:

-6

Step-by-step explanation:

to find slope by counting you just count rise over run

to get from (1,-4) to (0,2) you must go up 6 and back 1

6/-1 (negative cause you went back)

Answer:

Step-by-step explanation:

How is the slope (or gradient) usually found?

[tex]m = \frac{\Delta y}{\Delta x}[/tex]

In other words, this means that the slope is found by dividing the change in y by the change in x.

How many units change in regards to y? We can count! Let's start counting from the y-intercept (the red dot that on the y-axis). 2,1,0,-1,-2,-3,-4. We counted -6 since we went down.

Now let's count the change in x, if we start from the y-intercept once more, how many units do we have to move to get to the second red dot? Well that's 1!  We only have to move one square to the right to get to the second red dot.

Let's plug this into the equation I stated at the start of this answer

[tex]m = \frac{-6}{1}[/tex]

And we know that [tex]\frac{-6}{1}[/tex] is just equal to -6.

Therefore, the slope of this line is -6!

Good luck!

Answer:

[tex]d = 11[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra II

Step-by-step explanation:

Step 1: Define

Point (4, 6)

Point (-7, 6)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Hi there.

The answer is (-2,7). The second choice.

Explanation:

We can use the graph method or the solving method.

For the graph method, find where both graphs intercept and that is x = - 2 y = 7.

But if you don't use the graph method. We can solve the equation.

[tex]y = 0.5x+ 8 \\ y = \frac{5}{10} x + 8 \\ y = \frac{1}{2} x + 8[/tex]

Convert the expressions in simplified form.

Then combine both equations.

[tex] \frac{1}{2}x + 8 = 5 - x[/tex]

Because there is the denominator. We get rid of it.

Multiply the whole equation by 2.

[tex] \frac{1}{2} x(2) + 8(2) = 5(2) - x(2) \\ x + 16 = 10 - 2x \\ 3x = 10 - 16 \\ 3x = - 6 \\ x = - 2[/tex]

Since it is the two variables linear equations, we need to find y-value too.

Substitute x = -2 in any given equations.

I will substitute x = -2 in y = 5-x

[tex]y = 5 - x \\ [/tex]

Substitute x = -2 in the equation.

[tex]y = 5 - ( - 2) \\ y = 5 + 2 \\ y = 7[/tex]

Thus, the answer is x = -2, y = 7

Or

(-2,7)

Answer: 33

Artists : photographers = 3 : 2, and there are 9 artists, so there are 6 photographers. Then, the ratio of photographers to writers is 1 : 3, so there are 18 writers. Finally, there are half as many editors as writers, so there are 9 editors.

There are 6 + 18 + 9 = 33 photographers, writers and editors total.

i hope this helps! :D

Answer:

Step-by-step explanation:

( 7-5)- (3-1) = 0

Answer:

no solution

Step-by-step explanation:

radicals can't be negative

Answer:D:y<-3x+4

Step-by-step explanation:good luck

By analyzing the graph, we can see that the inequality is:

y < -3x + 4

We can see a dashed line, and the shaded region is below the line, so the inequality will be something like:

y < line

We also can see that the line passes through (0, 4) and (1, 1), so we already know that the y-intercept is 4, and the slope will be:

a = (1 - 4)/(1 - 0) = -3

So the line is:

y = -3x + 4

Then the inequality is:

y < -3x + 4

If you want to learn more about inequalities, you can read:

https://brainly.com/question/18881247

Answer:

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

[tex]x = -\frac{5}{2}[/tex]

Step-by-step explanation:

Solve Using the Quadratic Formula

     4x^2 + 8x − 5 = 0

Use the quadratic formula to find the solutions.

    −b ± √b^2 − 4 (ac)

     -------------------------

               2a

Substitute the values a = 4, b = 8, and c = −5 into the quadratic formula and solve for x.

    −8 ± √82 − 4 ⋅ (4 ⋅ −5)

     -------------------------

              2 ⋅ 4

Simplify the numerator.

Raise 8 to the p ower of 2.

     −8 ± √64 − 4 ⋅ 4 ⋅ −5

x=     ---------------------------

               2 ⋅ 4

Multiply −4 by 4.

        −8 ± √64 − 16 ⋅ −5

x =       -------------------------

                2 ⋅ 4

Multiply −16 by −5.

        −8 ± √64 + 80

x =       -------------------

               2 ⋅ 4

Add 64 and 80.

        −8 ± √144

x =        --------------

             2 ⋅ 4

Rewrite 144 as 12^2.

        −8 ± √122

x =       ------------

            2 ⋅ 4

Pull terms out from under the radical, assuming positive real numbers.

multiply 2 by 4          

        −8 ± 12

x=     ------------

            8

simplify

    −2 ± 3

x=   ---------

        2

The final answer is the combination of both solutions.

x= 1/2, -5/2

Hope this helped!

Answer: [tex](\frac{1}{2} , -\frac{5}{2} )[/tex]

Step-by-step explanation:

Solve Using the Quadratic Formula

      4x^2 + 8x − 5 = 0

Use the quadratic formula to find the solutions.

     −b ± √b^2 − 4 (ac)

      -------------------------

                2a

Substitute the values a = 4, b = 8, and c = −5 into the quadratic formula and solve for x.

     −8 ± √82 − 4 ⋅ (4 ⋅ −5)

      -------------------------

               2 ⋅ 4

Simplify the numerator.

Raise 8 to the p ower of 2.

      −8 ± √64 − 4 ⋅ 4 ⋅ −5

x=     ---------------------------

                2 ⋅ 4

 Multiply −4 by 4.

         −8 ± √64 − 16 ⋅ −5

x =       -------------------------

                 2 ⋅ 4

Multiply −16 by −5.

         −8 ± √64 + 80

x =       -------------------

                2 ⋅ 4

Add 64 and 80.

         −8 ± √144

x =        --------------

              2 ⋅ 4

Rewrite 144 as 12^2.

         −8 ± √122

x =       ------------

             2 ⋅ 4

Pull terms out from under the radical, assuming positive real numbers.

multiply 2 by 4          

         −8 ± 12

x=     ------------

             8

simplify

     −2 ± 3

x=   ---------

         2

The final answer is the combination of both solutions.

x= 1/2, -5/2

Answer:

s= -2

Step-by-step explanation:

9= -8s-7

8s=-9-7

8s=-16

s=-16/8

s=-2

Answer:

4 to 4

Step-by-step explanation:

Answer: y=x-3-5

it goes below

Answer:

it may help get the answer

Step-by-step explanation:

Try this

Answer:

337.82  cm

Step-by-step explanation:

Santiago is 5 feet tall and 11 inches tall and Michael is 5 feet tall and 2 inches tall.

We need to find total height in cm.

1 inch = 2.54 cm

1 feet = 30.48 cm

5 feet 11 inches = 5(30.48) + 11(2.54)

= 180.34  cm

5 feet 2 inches = 5(30.48) + 2(2.54)

= 157.48 cm

Total height = Santiago's height + Michael's height

= 180.34  cm + 157.48 cm

= 337.82  cm

Hence, their total height is 337.82  cm.

Given:

[tex]x^2-6xy+36y^2[/tex]

To find:

Whether the given trinomial is a perfect trinomial or not.

Solution:

We have,

[tex]x^2-6xy+36y[/tex]

It can be written as

[tex]=x^2-6xy+6^2y^2[/tex]

[tex]=x^2-(x)(6y)+(6y)^2[/tex]

This equation is not of the form [tex](a-b)^2=a^2-2ab+b^2[/tex] because in the above expression, 2 is missing in the middle term.

Therefore, the given trinomial is not a perfect square.

Answer:

m = - 1/2

Step-by-step explanation:

m = -4 - 1

4 - -6

- 5/10

m = - 1/2

Answer:

There were 156 green wands.

Step-by-step explanation:

Given that,

The ratio of red wands to green wands is 1:3.

Let red wands be x and that of green wands be 3x.

ATQ,

Total wands = 208

x+3x = 208

4x = 208

x = 52

Green wands = 3x

= 3(52)

= 156

Hence, there were 156 green wands.

Answer:

Step-by-sitstep explanation:

so its easy add ab and after that add the x

The required area of AXYD = 18.

Given that,
In the above, ABCD is a square with sides of length 6. If X is the midpoint of side AB, and If Z is the midpoint of CD, what is the area of AXYD is to be determined.

the rectangle is four-sided polygon whose opposites sides are equal and has an angle of 90° between its sides.

Since X is the midpoint of side AB, and If Z is the midpoint of CD,
The length of AX = 3, AD = 6
The Area of AXYD = 3 * 6
                            = 18

Thus, the required area of AXYD = 18.

Learn more about rectangles here:
https://brainly.com/question/16021628

#SPJ5

Answer:

x-1/3x+2=0

Step-by-step explanation:

this is equation hv infinitely many solution

if it help u then plz mark me briallent

Answer:

yo pionso que es 3

Step-by-step explanation:

pero no estoy tan segura