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2 years ago

Four times a number added to 9 times the number is 65. What is the number?

Mathematics

2 answers:

MA_775_DIABLO [31]2 years ago

6 0

Answer: 5

Step-by-step explanation:

Let the number = x.

4x + 9x = 65

13x = 65

x = 5

noname [10]2 years ago

5 0

Answer:

Step-by-step explanation:

Let n represent the number. We can use this to set up an equation:

4n+9n=65

Combine like terms:

13n=65

Divide both sides by 13

n=5

The number is 5.

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Find the exponential function that satisfies the given conditions:

swat32

Answer-

The exponential function that satisfies the given conditions is $f(t)=67(0.9953)^t$

Solution-

This can be represented as exponential decreasing function,

$f(t)=a(1 - r)^t$

Where,

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ziro4ka [17]

Answer:

$(3x+2)(3x-2)$

Step-by-step explanation:

we know that

A binomial is a Difference of Squares if both terms are perfect squares

we have

$9x^{2} -4$

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