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WITCHER [35]
3 years ago
8

Developed nations make up about percent of the world s population and consume about percent of its resources.

Mathematics
1 answer:
Pepsi [2]3 years ago
6 0
The answer is A, developed nations make up about 20 percent of population yet consume 75 percent of sources.
You might be interested in
A two digit number becomes 5/6 of the reversed number when the digits are interchanged the difference between the digits is 1 fi
Rina8888 [55]

Answer:

Original number = 54

Reversed number = 45

Step-by-step explanation:

Let the tens place digit be x and unit's place digit be y.

Therefore, required no. = 10x + y

Number obtained after interchanging the digits = 10y + x

According to the given condition:

10y+ x =  \frac{5}{6} (10x + y) \\ 6(10y + x) = 5(10x + y) \\ 60y + 6x = 50x + 5y \\ 60y + 6x - 50x - 5y = 0 \\ 55y - 44x = 0 \\ 11(5y - 4x) = 0 \\ 5y - 4x = 0.....(1) \\ according \: to \: the \: second \: condition \\ x - y = 1 \\ x = y + 1....(2) \\ from \: equations \: (1) \: and \: (2) \\ 5y - 4(y + 1) = 0 \\ 5y  - 4y  - 4= 0\\ y  - 4  = 0 \\ y  =  4 \\ substituting \: y =  4 \: in \: equation \: (2) \\ x =  4 + 1 \\ x =  5 \\  \\ 10x + y = 10 \times 5 + 4 = 50 + 4 = 54 \\ 10y + x = 10 \times 4 + 5 = 40 + 5 = 45 \\

4 0
3 years ago
Find the measure of the indicated angle to the nearest degree using trig functions. (if you can also give me step by step on how
Andru [333]

Answer:

A ; 21

Step-by-step explanation:

Here, the side facing the right angle is the hypotenuse and it has a measure of length 42

The side facing the missing angle is the opposite and it has a length of 15

The trigonometric ratio that connects the hypotenuse and the opposite is the sine

The sine of an angle is the ratio of the opposite to the hypotenuse

Thus;

sine ? = 15/42

sine ? = 0.357

? = arc•sim 0.357

? = 21 degrees

4 0
3 years ago
Raffle ticket sales a civic group sells 1000 raffle tickets to raise $2500 for its namesake charity. first prize is $1000, secon
ivann1987 [24]
First, we need to add all of the dollar amounts to get the total the civic group needs to raise.

$2,500+$1000+$300+$200=$4,000.

Then, divide by number of tickets.

$4,000/1,000=$4

The civic group needs to sell each ticket for $4.
4 0
4 years ago
Lines I and m are parallel.
tatyana61 [14]

m∠3 = 70°

Solution:

Line l and line m are parallel.

line t and line s are transversals.

<em>Sum of the adjacent angles in a straight line = 180°</em>

50° + (x + 25)° + (2x)° = 180°

50° + x° + 25° + 2x° = 180°

75° + 3x° = 180°

Subtract 75° from both sides, we get

3x° = 105°

Divide by 3 on both sides of the equation.

x° = 35°

x = 35

(2x)° = (2 × 35)° = 70°

(2x)° and ∠3 are alternate interior angles.

<em>If two lines are parallel then alternate interior angles are congruent.</em>

m∠3 = (2x)°

m∠3 = 70°

Hence m∠3 = 70°.

5 0
4 years ago
Find the area of a rectangular garden that has a width of 4x−6 and a length of 2x+4.
vova2212 [387]

Answer:

8x^2+4x-24

Step-by-step explanation:

A=LW

(4x-6)(2x+4)

8x^2-12x+16x-24

8x^2+4x-24

4 0
4 years ago
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