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kirill [66]
3 years ago
7

Find the missing number so that the equation has no solutions. x+20= – 4x+3

Mathematics
1 answer:
valkas [14]3 years ago
8 0

Answer: Its 3x

Step-by-step explanation:

I don't really know how to explain it.

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2 numbers are in the ratio 1:2 if the first number is decreased by 5 and second number is increased by 4 their ratio becomes 5:4
Anna35 [415]

Answer:

-20/3 & -40/3

Step-by-step explanation:

Let’s say that the 1st number is X and the 2nd number is Y.

Given that x:y = 1:2 => x/y = 1/2 => 2x = y

and a-5/y+4 = 5/4 (The first number is decreased by 5 and the second number is increased by 4.)

=> 4(x - 5) = 5 (y + 4)

=> 4x - 20 = 5y + 20

=> 4x - 5y = 40

As, 2x = y , 4x = 2y

=> 2y - 5y = 40

=> -3y = 40

=> y = -40/3 ; x = y/2 = -20/3

This might be confusing but I hope this helps :)

7 0
3 years ago
Find the zeros of f(x) = 7x² + 42.
goblinko [34]

Answer:

0,42

that should be the answer

7 0
2 years ago
1.In the diagram of circle M shown, various points are located on the circle as shown. 
 a) List three segments that are radii o
dalvyx [7]

Answer:

(a)|MA|, |MB| and |MC|

(b) |BD|

(c) |BC|

Step-by-step explanation:

An adapted diagram of this question is attached. You can vary the labelled letters as required.

<u>Definition</u>

  • A <u>radius </u>is a line drawn from the center of a circle to its circumference.
  • A <u>segment </u>is a line that connects two points.
  • A <u>diameter</u> is a chord which passes through the center of the circle.
  • A <u>chord</u> is any line joining two points on the circles' circumference.

By these definitions:

(a)Segments that are radii of this circle.

We have: |MA|, |MB| and |MC|

(b)Segment that is a diameter of this circle.

|BD|

(c)A chord of this circle that is not a diameter.

|BC|

3 0
3 years ago
1,000 yards to kilometers.
umka2103 [35]

Answer:

0.9144 km

Step-by-step explanation:

you can simply search this.

7 0
3 years ago
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Hugo is the chef of a school cafeteria.
Licemer1 [7]

Answer: No

Step-by-step explanation:

I guessed..but it was right

7 0
3 years ago
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