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3 years ago

The result of a number, when decreased by 20% is 192. Find this number.

Mathematics

2 answers:

vlada-n [284]3 years ago

8 0

I am pretty sure it would be 230.4 because 192 multiplied by 1.20 (20 percent increase) is 230.4.

zalisa [80]3 years ago

6 0

80% of the number is i92,so find the remaining 20% add it up to get the original number.20^192 then divided by 80=48.Add 48 to 192 to get 240

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X(x+3) + 34 = (x +5)(x+2)

My name is Ann [436]

X(x + 3) + 34 = (x + 5)(x + 2)

First, expand to remove parentheses.
$x^{2} + 3x + 34 = x^{2} + 2x + 5x + 10$
Second, add '2x + 5x' to get '7x'.
$x^{2} + 3x + 34 = x^{2} + 7x + 10$
Third, cancel out ' $x^{2}$ ' on both sides.
$3x + 34 = 7x + 10$
Fourth, subtract '3x' from both sides.
$34 = 7x + 10 - 3x$
Fifth, subtract '7x - 3x' to get '4x'.
$34 = 4x + 10$
Sixth, subtract '10' from both sides.
$34 - 10 = 4x$
Seventh, subtract '34 - 10' to get '24'.
$24 = 4x$
Eighth, divide both sides by '4', leaving the 'x' by itself.
$\frac{24}{4} =x$
Ninth, since '24 ÷ 4 = 6', simplify the fraction to '6'.
$6 = x$
Tenth, switch your sides to get the answer.
$x = 6$

Answer: x = 6

4 0

3 years ago

Question 3 At 11:05 a.m. a man in a parachute is 8000 feet above the ground. At 11:08 a.m. the same man is 5400 feet above the g

Orlov [11]

Answer:

2600 feet every 3 minutes.

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5 0

3 years ago

Solve the equation 2/3 h - 1/3 h + 11 = 8 h = ?

Deffense [45]

Answer:

$2 \div 3h - 1 \div 3 h+ 11 = 8 \\ 2 - 1 \div 3h = - 3 \\ 1 \div 3h = - 3 \\ - 9h = 1 \\ h = - 1 \div 9$

-1/9 is the answer

8 0

3 years ago

What addition doubles fact can help you find 4+ 3? Explain how you know

astraxan [27]

7 because if u add 4 and 3 that's what u end up with

5 0

3 years ago

Plz HELP! WILL GIVE BRAINLIEST! 1. Consider the picture below. Find the measure of ∠CEA.

pashok25 [27]

Answer:

103°

Step-by-step explanation:

The marked angles have the same measure, so ...

14x+7 = 12x +17

2x = 10 . . . . . subtract 12x+7

x = 5 . . . . . . . divide by 2

(14x +7)° = 77°

∠CEA is supplementary to the marked angles:

∠CEA = 180° -77°

∠CEA = 103°

4 0

3 years ago