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3 years ago

Once again, you know the rules. Solve for x

Mathematics

2 answers:

avanturin [10]3 years ago

3 0

Answer:

x = 2

Step-by-step explanation:

Angles are complementary so:

10x + 16 + 54 = 90

10x + 70 = 90

10x = 20

x = 2

galben [10]3 years ago

3 0

Answer:

Step-by-step explanation:

We know that these angles HAVE to add up to 90°.

First lets eliminate the extra number (16). To do so, we just need to add it to 54.

54 + 16 = 70

Now there is 20 degrees missing.

So we just need to divide 20 by 10

20 ÷ 10 = 2

So 2 is the answer

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Ok so the equation is 45+x=2x+15

sleet_krkn [62]

Answer:

y=45+x

y=2x+15

x=30

Step-by-step explanation:

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3 years ago

investment historically have doubled every 9 years if you start with $2000 investment how much money would you have after 45 yea

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Sphinxa [80]

Answer:

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Step-by-step explanation:

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Fed [463]

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Find each function value 1. f(7) if (x)=5x 2. f(4) if f(x)=3x-1

Inessa [10]

ANSWER

$1. \: \: f(7) = 35$

$2. \: f(4) = 11$

EXPLANATION

To find the value of a function, f(x) at a given value x=a, we plug in x=a into f(x) to obtain f(a) in simplified form.

The first function is

$f(x) = 5x$

To find f(7), we substitute x=7, into the function.

$\implies f(7) =5(7) = 5 \times 7 = 35$

The second function is

$f(x) = 3x - 1$

To find f(4), we replace x with 4 to obtain,

$f(4) = 3(4) - 1$

$f(4) = 12 - 1 = 11$

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3 years ago