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3 years ago

Taylor has a $30.00 gift card that she can

Mathematics

2 answers:

WITCHER [35]3 years ago

8 0

Answer:

7 journals

Step-b7 y-step explanation:

In this question, we have to find how many journals she can buy with her left over money.

We know that she has a $30 gift card. We also know that she already spent $9 of it on a frame.

With this knowledge, we know that she has $21 left on her gift card.

To find how many journals she can buy, lets set up an equation where x = the amount of journals.

3x = 21

Solve for x:

3x = 21

Divide both sides by 3

x = 7

This means that she could buy 7 journals.

Debora [2.8K]3 years ago

4 0

Answer:

She can buy 7 Journals

Step-by-step explanation:

9 + 3x ≤ 30

Subtract 9 on both sides...

3x ≤ 21

Divide by 3 on both sides...

x ≤ 7

Hope this helps :)

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Hello there!

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$\displaystyle \large{ f(x) = | - 2x| - 3} \\$

To find the range, we know that domain is the set of all x-values and also called 'input' while range is the set of all y-values and also called 'output'.

Basic Function - you add the input, you get the output. You add x-value in a function, you get y-value. You add domain, you get range.

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$\displaystyle \large{ f(1) = | - 2(1)| - 3} \\ \displaystyle \large{ f(1) = | - 2| - 3} \\$

Recall that any numbers in absolute value are always positive.

$\displaystyle \large{ f(1) = 2 - 3} \\ \displaystyle \large{ f(1) = - 1} \\$

x = 2

$\displaystyle \large{ f(2) = | - 2(2)| - 3} \\ \displaystyle \large{ f(2) = | - 4 | - 3} \\ \displaystyle \large{ f(2) = 4 - 3} \\ \displaystyle \large{ f(2) = 1}$

x = 3

$\displaystyle \large{ f(3) = | - 2(3)| - 3} \\ \displaystyle \large{ f(3) = | - 6| - 3} \\ \displaystyle \large{ f(3) = 6 - 3} \\ \displaystyle \large{ f(3) = 3}$

Therefore, Range: {-1,1,3}

Let me know if you have any questions!

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