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3 years ago

Ten cats eat 4 cans of cat food. How many cats eat 7.2 cans of food?

Mathematics

1 answer:

padilas [110]3 years ago

6 0

Answer:

18 cats

Step-by-step explanation:

Set up as a proportion

x / 7.2 = 10/4

Multiply both sides by 7.2

x = 10/4 * 7.2

x = 18

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Solve the following: A) 4x-1/2=x+7 B) 3x+2=2x+13/3 C) 2x-7/4=3+x/3

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Answer:

a. 2.5

b. 2.333

c. 2.85

Step-by-step explanation:

A) 1. subtract -x on both sides 2. to get 3x-1/2=7

3. Add 1/2 on both sides 4. to get 3x=7.5

5. divide 3 on both sides 6. To get... x=2.5

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C) 1. same process. 2. 2x-x/3=3+7/4

3. 2x-x/3=4.75 4. Isolate -x/3

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2 years ago

How do I evaluate the function f(x)=3x-2 when x=-1?

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3 years ago

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2 years ago

Which expression is equivalent to log3(x + 4)?

solmaris [256]

ANSWER

The third option is the correct answer

$log3(x + 4) = log(3) + log(x + 4)$

EXPLANATION

The expression given to us is

$log3(x + 4) = log(3) + log(x + 4)$

This logarithmic expression is of the form

$log(A \times B)$

So we use the multiplication law of logarithm which is given by

$log(A \times B) = log( A ) + log( B )$

We therefore set

$A = 3$

$B = x + 4$

The given expression now becomes,

$log3(x + 4) = log(3) + log(x + 4)$

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3 years ago

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