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stiv31 [10]
3 years ago
15

7. 4 = 8X + 5Y _____________________________

Mathematics
1 answer:
Strike441 [17]3 years ago
8 0

As the equation does not consists like terms we can only get x , y equations.

Step-by-step explanation:

Firstly, they are not like terms.

If the value to be is found is X then,

8x+5y=4

Now subtract 5y on both sides

8x+5y-5y=4-5y

here both positive 5y and negative 5y get cancelled

Now divide by 8

x=(4-5y)/8

If we need y value then,

subtracting both sides by 8x

5y=4-8x

Now dividing with 5 on both sides

y=(4-8x)/5  =>y=4/5 -8x/5

According to Y=mx+c

slope = m = 4/5

y-intercept = -8x/5.

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A scale drawing of a square object has a scale of 1 in. : 5 mm. The scale drawing has a length of 2.5 inches. Find the perimeter
luda_lava [24]

Answer:

Perimeter and area of drawing

Perimeter= 10 In

Area = 6.25 In²

Perimeter and area of object

Perimeter = 51.836 mm

Area = 167.936 mm²

Step-by-step explanation:

We are dealing with a square object, so let's talk about the drawing first.

The length of one side = 2.5 In

Perimeter of square= 4L

Perimeter = 4*2.5

Perimeter= 10 In

Area = L*L

Area = 2.5*2.5

Area = 6.25 In²

Letd note that 1 inch =

25.4 millimetres

So 2.5 Inch = 2.5 * 25.4

2.5 In = 63.5 mm.

25.4 mm is to 5mm

63.5 mm is to (63.5*5)/24.5

63.5mm is to 12.959 mm

So the length of actual object is 12.959mm

The perimeter = 4*12.959

Perimeter = 51.836 mm

Area = 12.959²

Area = 167.936 mm²

7 0
3 years ago
Read 2 more answers
Let R be the shaded region bounded by the graphs of y = e^x, y = -1, x = 1, and the y-axis. R is the base of a solid with cross
Kruka [31]

Answer:

get a graphing caculator and type the numbers in the rectangle and see what you get

Step-by-step explanation:

6 0
2 years ago
Water Street intersects 25th Street and 28th Street at right angles. Highway 47 is parallel to 28th Street. How are 25th Street
mezya [45]

Answer:

  • 25th Street is parallel with Highway 47

Step-by-step explanation:

Water Street intersects 25th Street and 28th Street at right angles.

  • <u>Outcome</u> ⇒ 25th Street and 28th Street are parallel

Highway 47 is parallel to 28th Street.

  • <u>Outcome</u> ⇒ 25th Street is parallel with Highway 47
5 0
3 years ago
Read 2 more answers
How do I solve for c and y 72x+84y=4920
Aleksandr [31]

Answer:

y = -6/7 + 410/7

(y = mx + c)

Step-by-step explanation:

72x + 84y = 4920

84y = -72x + 4920

y = -6/7 + 410/7

3 0
3 years ago
12n - 3 = 7(n - 4) + 5n<br><br> Solve.
shutvik [7]
12n-3=7(n-4)+5n
12n-3=7n-28+5n
12n-3=12n-28
0n=-25
n=undefined. As a result, this answer has No solution. Hope it help!
5 0
3 years ago
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