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Anestetic [448]
3 years ago
6

4x+8=6x-14Prove: x= 11

Mathematics
1 answer:
Kazeer [188]3 years ago
6 0
4x+8=6x-14
-4x. -4x
8=2x-14
+14 +14
22=2x
/2. /2
11=x
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A rectangular plot of land is to be enclosed by a fence. One side is along a river, and does not need to be enclosed. If the tot
Bad White [126]

Answer:

Width 150 meters.

Length = 350 meters.

Step-by-step explanation:

Let us assume the  width of  the fence = k meters

So, both sides = k + k = 2k meters

Also, the TOTAL fencing length = 600 m

So, the one side length of the fence = (600 - 2 k) meters

AREA = LENGTH x WIDTH

⇒ A(k)  = (600 - 2k) (k)

or, A =  -2k² + 600 k

The above equation is of the form: ax² +bx +  C

Here: a  = - 2 , b = 600 and C = 0

As a< 0, the parabola opens DOWNWARDS.

Here, x value is given as:  x = \frac{-b}{2a}

Solving for the value of k similarly, we get:

k = \frac{-b}{2a}  = \frac{600}{2(-2)}  = 150

Thus the desired width = k = 150 meters

So, the desired dimensions of the plot  is width 150 meters.

And length = 650 - 2k = 650 - 300 = 350 meters.

5 0
3 years ago
Which fraction is equal to 7
Leya [2.2K]
The answer is E 73/10
3 0
3 years ago
I WILL GAVE BRAINLIEST
Arte-miy333 [17]

Answer:

x < -14

Step-by-step explanation:

Step 1: Subtract 6 from both sides.

  • -3x+6-6 > 48-6
  • -3x > 42

Step 2: Divide both sides by -3 and flip the inequality sign.

  • -3x/-3 > 42/-3
  • x < -14

Therefore, the answer is  x < -14.

4 0
2 years ago
Read 2 more answers
Mrs. Watson shared a cheese pizza among herself and four children. Each person ate 18 of the pizza. How much of the pizza was ea
katrin [286]

Answer:

90

Step-by-step explanation:

3 0
3 years ago
HELPPPP ASAPPP PLEASSSSEE
kolezko [41]

Let dimes = d and quarters =q

D + q = 50

D= 50-q

0.10d + 0.25Q = 7.70

Replace d with 50-q:

0.10(50-q) + 0.25q = 7.70

Simplify:

5 -0.10q + 0.25q = 7.70

5 + 0.15q = 7.70

Subtract 5 from both sides:

0.15q = 2.70

Divide both sides by 0.15:

Q = 2.70 / 0.15

Q = 18

D = 50-18 = 32

There are 32 dimes and 18 quarters

5 0
3 years ago
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