All categories

2 years ago

Which of the following ratios are equivalent to 20% ? 5:15 , 1:5 , 2:5 , 3:12 , 4:20

Mathematics

2 answers:

o-na [289]2 years ago

8 0

Answer:

The correct ratios are:

1:5

4:20

Step-by-step explanation:

I hope this helps! have a wonderful rest of ur day :)

and if its not too much to ask could you give me brainliest pls, im trying to rank up this month, if not then not problem! ty and let me know if you need anything else!

grin007 [14]2 years ago

7 0

Answer:

1:5 4:20

Step-by-step explanation:

Because say you got 1 right out of 5 on test you get a 20%

since 20 can go into a 100 5 times if whatever number is the 1rst time it can go into 5 it is a 20 like 4:20 because 4,8,12,16,20 see that's 5 numbers and 4 is the first.

In then 1:5 is another example it can go 5 times or one more is like 10:50=20% or 15:75.

Hope this helps have a great afternoon:)

You might be interested in

Please help. i will mark you brainleist

djverab [1.8K]

Answer:

w = 1/8t

Step-by-step explanation:

So this is basically saying that for every 1 second that passed, 8 oz of water drip steadily into the bucket which can be expressed like this:

8w = t

Since t represents x and w represents y, we can simplify the equation by moving the 8 to the other side

w = 1/8t

4 0

3 years ago

What is the interquartile range of this set of data? 15, 19, 20, 25, 31, 38, 41

Irina18 [472]

First, you have to find the median, which is the number in the middle: 25

Then cut the data in half by the median, so your new data sets are
15,29,20
and
31,38,41

Now you find the median of both of those sets, which is 29 and 38.

The interquartile range is the difference between the numbers, so 38-29 = 9.

8 0

4 years ago

After John worked at a job for 10 years, his salary doubled. If he started at $x, his salary after 10 years is _____

Mkey [24]

Answer:

After ten years his salary is x2

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Whats is 67.24 as a mixed number

masha68 [24]

67 24 out of 100 i believe

6 0

4 years ago

Read 2 more answers

Find the derivative of ln(cosx²).

RoseWind [281]

Answer:

$\displaystyle \frac{dy}{dx} = -2x \tan (x^2)$

General Formulas and Concepts:

Calculus

Differentiation

Derivatives
Derivative Notation

Basic Power Rule:

f(x) = cxⁿ
f’(x) = c·nxⁿ⁻¹

Derivative Rule [Chain Rule]: $\displaystyle \frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)$

Step-by-step explanation:

Step 1: Define

Identify

$\displaystyle y = \ln (\cos x^2)$

Step 2: Differentiate

Logarithmic Differentiation [Derivative Rule - Chain Rule]: $\displaystyle y' = \frac{(\cos x^2)'}{\cos x^2}$
Trigonometric Differentiation [Derivative Rule - Chain Rule]: $\displaystyle y' = \frac{-\sin x^2 (x^2)'}{\cos x^2}$
Basic Power Rule: $\displaystyle y' = \frac{-2x \sin x^2}{\cos x^2}$
Rewrite [Trigonometric Identities]: $\displaystyle y' = -2x \tan (x^2)$

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Differentiation

8 0

3 years ago