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3 years ago

What is the value of x in the equation 7x + 2y = 48 , when y = 3?

2 answers:

4 0

For
7x + 2y = 48
we're given y = 3, so substitute into the equation

7x+2(3) = 48
now multiply 2 and 3
7x+6=48
subtract 6 on both sides
7x=42
divide 7 on both sides
x=6

Sindrei [870]3 years ago

3 0

7x+2y=48
7x+2(3)=48
7x+6=48
Subtract 6 on both sides.
7x=42
divide 7 on both sides
x=6

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Slope of (0,1) and (3,0)

Marysya12 [62]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{ \frac{ - 1}{3}}}}}}$

Step-by-step explanation:

Let the points be A and B

Let A ( 0 , 1 ) be ( x₁ , y₁ ) and B ( 3 , 0 ) be ( x₂ , y₂ )

Finding the slope of the points

$\boxed{ \sf{slope = \frac{y2 - y1}{x2 - x1} }}$

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$\longrightarrow{ \sf{slope = \frac{ - 1}{3}}}$

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4 years ago

Read 2 more answers

Wendy wants to put a wallpaper border around her bedroom. The room has two walls that each measure 10 feet 5

cestrela7 [59]

Answer:

11 yards

Step-by-step explanation:

The room has two sides both measuring 10 feet 5 inches. This gives a total of 20 feet 10 inches. It also has the other two sides both measuring 6 feet 1 inch and that too gives a total of 12 feet 2 inches. Adding them all together results in 32 feet 12 inches. Better still, the perimeter of the room is derived as;

Perimeter = 2 (L + W)

Perimeter = 2 (10'5" + 6'1")

Perimeter = 2(16'6")

Perimeter = 32'12"

Having in mind our conversion rate of 12 inches equals 1 foot, the results can be properly expressed as 32 feet plus 1 foot which gives us 33 feet.

If the perimeter of Wendy's room is now given as 33 feet, the conversion rate between feet and yards can now be applied. Having been given that

3 feet = 1 yard

Then 1 yard = 3 feet/3, that is

y = 3/3

Hence,

y = 33/3

y = 11

The results show that Wendy would needs to buy a total of 11 yards of wallpaper border.

3 0

3 years ago

Answer this please I really need a answer

Ainat [17]

Answer:

The answer is D

Step-by-step explanation:

Why

The board is originally 108 inches long when you cut it in half that makes it two different pieces

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2 years ago

Whoever is willing to help I will give extra point I will probably get some done myself but I will need help with the rest

Monica [59]

Answer:

are you just listing defnitions or what

Step-by-step explanation:

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3 years ago

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4 years ago