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2 years ago

PLEASE HELP! WILL MARK THE FIRST CORRECT ANSWER BRAINLIEST!

Mathematics

1 answer:

Oliga [24]2 years ago

4 0

Answer:

((n-x)/n)*100

Step-by-step explanation:

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Substitute the value of (p) you just found, 285.7, into one of the equations in the system

Vitek1552 [10]

Answer: 214.28

Step-by-step explanation:

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2 years ago

PLEASE HELP/ANSWER! From 1980 to 1990, Lior’s weight increased by 25%. If his weight was k kilograms in 1990, what was it in 198

Elena-2011 [213]

The weight in 1980 is $\frac{4k}{5}$ kilograms

Solution:

From 1980 to 1990, Lior’s weight increased by 25%

His weight is "k" kilograms in 1990

To find: weight in 1980

This is a percentage increase problem

Let "x" be the weight in kilograms in 1980

The percentage increase is given by formula:

$\text{Percentage increase } = \frac{\text{Final value - initial value}}{\text{initial value}} \times 100$

Here,

Initial value in 1980 = x

Final value in 1990 = k

Percentage increase = 25 %

Substituting the values in formula,

$25 = \frac{k-x}{x} \times 100\\\\25x = 100(k-x)\\\\x = 4(k-x)\\\\x = 4k - 4x\\\\5x = 4k\\\\x = \frac{4k}{5}$

Thus the weight in kilograms in 1980 is $\frac{4k}{5}$

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3 years ago

Check all like terms to 32xy 0 32x Oxy 0 32x O 32y 10xy

Troyanec [42]

Answer:

10xy (option 5)

Step-by-step explanation:

it contains both x and y pronumerals

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2 years ago

PLEASE HELP!!! Y=f(x)=(4)^x find f(x) when x=1/2

UNO [17]

\left[Y \right] = \left[ f(x)\right][Y]=[f(x)] .
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2 years ago

Read 2 more answers

PLEASE HELP ME WITH THIS!!!!!!!!

vlabodo [156]

Answer:

(9.5, 0) is in quadrant I. (-4, 7) is in quadrant II. (-1, -8) is in quadrant III.

Step-by-step explanation:

The negative signs say everything (quite literally). If there are no negative signs, it is in quadrant I. If there is one in the x-axis (the first number in an ordered pair), it is in quadrant II. If there are 2 negative signs, it is in quadrant III, and if there is one in the y-axis (the second number in an ordered pair), it is in quadrant IV.

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2 years ago