cuanto es 2×-8+7×=19​

Answer:6 1/4

Step-by-step explanation:

Answer:

$39.95 + $1.99x

Step-by-step explanation:

Cost of shoes = $39.95

Cost per pair of socks = $1.99

Number of socks pairs purchased = x

Total amout spent = (cost of shoes + cost of x pairs of socks)

Cost of x pairs of socks = $1.99 * x = $1.99x

Total amount spent = $39.95 + $1.99x

Answer:

$39.95 + $1.99x

Step-by-step explanation:

Answer:

1) -5+(-1)+7

-6+7

=1

2) 19+(-3)+6

16+6

=22

Answer:

1: 1

2: 22

Step-by-step explanation:

1 ) -5 + (-1) is -6, because they both have the same sign.

-6+7} when there is a negative and a postive, put the postive in front

so it will look like this 7-6 which is 1

2) 19+(-3) is basically 19-3, which is 16, and 16+6=22

Extra note:

when you see n+(-n), always remove the + sign and subtract

when you see -n+n, always switch the roles of the two

when you see -n+-n, remove the - sign and add it back later

when you see -n-n, think of -n+n

I hope these helps :)

Answer:

70

Step-by-step explanation:

just trust me i had this question and i had a 100

Answer:

10

Step-by-step explanation:

Answer:

Marketing helps producers to decide what products to produce and when to produce them. Marketing also helps consumers by letting them know what products are available at what price. When done well, it leads to greater satisfaction for consumers and higher profits for producers.

Step-by-step explanation:

hope this helps!

Answer:

hi

Step-by-step explanation:

it is -0,177

hope it helps

have a nice day

The value of expression after subtraction is,

⇒ - 0.177

Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.

Given that;

Expression is,

⇒ 0.123 - 0.3

Now, We can simplify the expression by subtracting as;

⇒ 0.123 - 0.3

⇒ - 0.177

Thus,  The value of expression after subtraction is,

⇒ - 0.177

Learn more about the subtraction visit:

https://brainly.com/question/17301989

#SPJ2

Answer:

b is 6

c is 8

Step-by-step explanation:

i was close i have 0.8

and 0.7

Answer:

12.5 sq units for the first answer is correct.

The second answer is 6.

The third answer is 8.

Step-by-step explanation:

The formula of a triangle is bh/2. Plug in the base and height for b and h then multiply.

1st box:

(5)(5)/2

25/2

12.5 Correct

2nd box:

(4)(3)/2

12/2

6 Final Answer

3rd box:

(4)(4)/2

16/2

8 Final Answer

Answer:

C because not all rhombuses are squares

Answer:

2. X^2-7x+3

Step-by-step explanation:

Answer:

that's correct... 8√3 is the correct answer

Step-by-step explanation:

sin 30°=1/2

1/2=4√3/x

simplify and you're done ☺

Answer:

C = 8squareroot3

Step-by-step explanation:

x = 4squareroot3 * 2

Answer:

k=1/4

Step-by-step explanation:

x² - 5kx+ k=0  ....(1)

suppose 2 roots: a and 4a

(x-a)(x-4a)=0

x² - 5ax + 4a² = 0 ....(2)

compare (1) and (2): -5a = -5k              a=k

4a² = k                4a² = a   (substitute)

a(4a-1) = 0

a = 0 or a = 1/4        (if a=0   k=0 and x=0 is not the solution)

a = 1/4      k = 1/4

(a₂ = 1/4 * 4 = 1)

Answer:

k = 1/4.

Step-by-step explanation:

Let the roots be  r and 4r   and using the fact that sum of the roots = -b/a and product = a/c, we have:

r + 4r = -(-5k)

r*4r = k

5r = 5k

4r^2 = k

From the 3rd equation:

r = k, therefore:

4k^2 = k

4k = 1

k = 1/4.

Answer:

No

Step-by-step explanation:

Six times negative three is negative eighteen and that plus four is negative 14

Answer:

110°

Step-by-step explanation:

Answer:

110 degrees

Step-by-step explanation:

Answer:

1. 6

2. 4

3. 10

4. Not sure about this one but I think 3

Answer: A

Step-by-step explanation:

Platooo

Answer:

A, parallelogram

Step-by-step explanation:

Because they are both parallel.

Answer:

I am not shure, but I think it is C.

Answer:

(x,y)=(4,6)

Step-by-step explanation:

3x+4y=36

y=-1/2 x+8

step 1: substitute the value of y

[tex]3x+4(-\frac{1}{2}x+8)=36[/tex]

step 2: solve equation for x

[tex]3x+4(-\frac{1}{2}x+8)=36[/tex]

3x-2x+32=36

x+32=36

x=36-32

x=4

step 3: substitute the value of x

[tex]y=-\frac{1}{2} (4)+8[/tex]

Step 4: solve equation for y

[tex]y=-\frac{1}{2} (4)+8[/tex]

y=-2+8

y=6

there for the answer is

(x,y)=(4,6)

Answer: Answer:the person entering the room is 10 years oldStep-by-step explanation:x / 5 = 40x = 40 * 5x = 200so the total of all the ages of 5 people

Step-by-step explanation:

Answer:

The starting height of the raiders is 39 meters.

Step-by-step explanation:

Physically speaking, a free fall motion is an uniformly accelerated motion due to gravity. Mathematically, speaking the equation of motion for the height of an object under free fall is a second order polynomial (quadratic function).

Let [tex]h(t) = -9.8\cdot t^{2}-5\cdot t + 39[/tex] be the height of the riders, in meters, the starting height is the height evaluated at [tex]t = 0\,s.[/tex] Hence, we proceed to the determined the required data by direct evaluation:

[tex]h(0) = -9.8\cdot (0)^{2}-5\cdot (0) +39[/tex]

[tex]h(0) = 39[/tex]

The starting height of the raiders is 39 meters above the ground.

Answer:

7*450*.5%

Step-by-step explanation:

Answer:

x int = (2/3,0)

y int = (0,4)

Step-by-step explanation:

x intercept y=0

6x+0=4

6x=4

x=4/6

x=2/3

(2/3,0)

y intercept x=0

6(0)+y=4

y=4

(0,4)

Answer:

(0,4) and ([tex]\frac{2}{3}[/tex], 0)

Step-by-step explanation:

6(0) + y = 4

y = 4

(0,4)

6x + 0 = 4

6x = 4

x = [tex]\frac{2}{3}[/tex]

([tex]\frac{2}{3}[/tex], 0)

Answer:

30 cm is the perimeter.

Step-by-step explanation:

To find the perimeter of this figure, add up all the lengths of the sides:

6 cm

4 cm

9.5 cm

4 cm

6.5 cm

-----------

30 cm is the perimeter.

Answer:

The perimeter will be 30 cm

Step-by-step explanation:

The perimeter is the distance around the composite figure.

The perimeter= 9.5+6.5+4+4+6=30 cm

perimeter=30

Answer:

The solution is given below:

Step-by-step explanation:

Given that

The equation is 4.2x

It could present the total price for the no of goods

Here we take an example

The price per chips is $4.2

And, the number of chips purchased be x

And, the total price would be y

So if 5 chips were purchased, so the total price would be

y = $4.2 (5)

= $21

hence, the above represent the description

Answer:

Blue square

Step-by-step explanation:

looking like rhombus because right angle is 90 degrees and a square has 4 right angles

Answer:

3

Step-by-step explanation:

Answer:

x= 10, x=1

Step-by-step explanation:

(x-1)(x-10)=0

then solve for x