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3 years ago

25% of what number is 30.2? i need help solving.

Mathematics

2 answers:

aleksandr82 [10.1K]3 years ago

8 0

120.8. Make a proportion. 25/100 equals 30.2 over x, the number. Now cross multiply. 100 times 30.2 divided by 25, so it is 120.8.

Another way to reason this is to see that 25 percent is one fourth, so just do 30.2 times 4

Verdich [7]3 years ago

4 0

Answer:

Step-by-step explanation:

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kondor19780726 [428]

Answer:

Step-by-step explanation:

youjust have to do this:

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siniylev [52]

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2 years ago

Which of the following is a description of the data with a correlation coefficient of 0.1?

maw [93]

The answer is a............

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3 years ago

How do I solve without s calculator?

baherus [9]

You could solve it ( without a graph) in 2 easy ways :

1 use the equation that you have written in pencil and solve for y

y=3=-x+4
y=-x +1

Or you could use the point slop form after you find the y intercept y=mx+b

-3=4(-1)+b
b= 1

So the answer would be y= -x +1

Hope this help of it does feel free to give the brainliest

5 0

3 years ago

Which of the following exponential functions represents the graph below?

mario62 [17]

Answer:

the graph corresponds to function "D" $f(x)=3\,(\frac{1}{5} )^x$

Step-by-step explanation:

Since the graph shown corresponds to an exponential "decay" (the function decreases as we move from left to right), the base of the exponent has to be a number smaller than 1 (one). So we examine the only two options that give such (options C and D which have fractions as the base - 1/3 and 1/5 respectively)

From there, we analyze which of the two functions satisfies the crossing of the y-axis at (0,3) which is clearly shown in the graph:

We study both:

function C at x = 0 gives:

$f(x)= 5\,(\frac{1}{3})^x\\f(0)=5\,(\frac{1}{3})^0 \\f(0)=5\,(1)\\f(0)=5$

while function D at x = 0 gives:

$f(x)= 3\,(\frac{1}{5})^x\\f(0)=3\,(\frac{1}{5})^0 \\f(0)=3\,(1)\\f(0)=3$

Therefore, the graph corresponds to function "D"

3 0

3 years ago

25% of what number is 30.2? i need help solving.​

25% of what number is 30.2? i need help solving.