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NemiM [27]
3 years ago
5

Use proportion to find the whole 75 is 15% of what number

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
7 0

Answer:

Your answer would be 11.25

Step-by-step explanation:

(is) = part = %

(of) = whole = 100%

x/75 = 15/100

x = 11.25

(ps i looked up how to do this so correct me if i'm wrong. Thanks!)

Iteru [2.4K]3 years ago
3 0

Answer:

500

Step-by-step explanation:

15% * x = 75

(15/100) * x = 75           Multiply both sides by 100/15

(15/100)*(100/15) = 75 * 100/15

x = 7500/15

x = 500

Answer 500

Proportion

15/100 = 75 / x             Cross multiply

15x = 100*75                Combine the right

15x = 7500                   Divide 15

15x/15 = 7500/15

x = 500


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Let y in the form of a + ib, where a and b are real numbers, be the cubic roots of a complex number z 20, where z =2 4+i3. Find
GalinKa [24]

The possible values of a + b are 0.89, 3.01 and -3.9

<h3>How to determine the value of a + b?</h3>

The given parameters are:

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y = ∛z

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Further, expand

a³ + i3a²b + i²3ab² + i³b³ = 24 + i3

In complex numbers;

i² = -1 and i³= -i

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a³ + i3a²b + (-1)3ab² -ib³ = 24 + i3

Further expand

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Read more about complex numbers at:

brainly.com/question/10662770

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pshichka [43]

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B. -1/3

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replace <em>x</em> with 34 and solve it.

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