MATHEMATICS MIDDLE SCHOOL

A local electronics store is advertising a sale on a flat screen television for 1/3 off. If a flat screen television normally sells for$1290 what is the sale price of the television set​

Answers

Answer 1
Answer:

Answer: 430$

Step-by-step explanation:

This process is simple all you had to do was this:

1290 x 1/3= 430

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Graph the equations to solve the system Y equals 2x+7 and 1/2y=x+7/2

Answers

Given equation is y=2x+7 and (1)/(2)y=x+(7)/(2)

Let's simplify the 2nd equation (1)/(2)y=x+(7)/(2) before we can start graph so that calculation will be easy

(1)/(2)y=x+(7)/(2)

multiply both sides by 2 to cancel out fractions

2*(1)/(2)y=2*x+2*(7)/(2)

y=2x+7

which is exactly same as the first equatoin so graph of both will be exactly same and solution will be infinitely many solutions.

y=2x+7 has y-intercept 7 so first point will be (0,7). Slope is 2 so rise 2 unit up then 1 right and graph the new point.

Carmen enters a painting in an art contest. The contest rules say that all paintings must be rectangular, with an area no greater than 3,003.04cm2 .carmens painting is 16 cm wide.what is the greatest length the painting can have and still have an area within the contest rules.(hint:a rectangle's area is the product of the width and the lenght.)

Answers

187.69 because 3003.04 divided by 16 is 187.69

What is the solution to the equation? 7x + 6 = –22

A. x = -64/7

B. x = -4

C. x = -16/7

D. x = 4

Answers

To solve the equation 7x+6 = - 22, we have to get the variable x alone on one side of the equation.

To do this, first we must subtract 6 from both sides, so that it cancels out with the +6 on the left side.

7x + 6 = - 22 = 7x = -28

Then, we must divide both sides by 7, so that we can get rid of the coefficient of the variable x on the left side of the equation.  

7x = -28 = x= -4

Therefore, your answer is 
B. x = -4
7x + 6 = -22.

 +6 crosses equality sign and changes to -6

7x = -22 -6

7x = -28    Divide both sides by 7

7x/7 = -28/7

x = -4

Option B.

One of the Ekati mine’s pipes,called the Panda pipe, has
northern and southern gates.
A communications tower
stands 100 m outside the north
gate. The tower can be seen from
a point 300 m east of the south
gate at camp A.
a) The distance between
camp A and camp B is 600 m.
Calculate the diameter
of the Panda pipe.
b) Calculate the distance from
camp B to the tower.

Answers

B) calculate the distance from

Can someone help write this equation

Answers

Answer:

d = 8t

Step-by-step explanation:

d = r*t  where d is the distance, r is the rate and t is the time

We can travel at 8 miles an hour

d = 8t

Answer:

d=8t

Step-by-step explanation:

16 skateboards to 2 skateboards? (The percentage)

Answers

Answer:

it is 1/8 or 12.5%

it also can be seen as 8:1
the ratio is 8:1. 12.5%
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