Which is equivalent to |20|?

Mathematics

1 answer:

Annette [7]3 years ago

4 0

Hey there!

Usually when people are trying to find absolute value we are trying to REMOVE your NEGATIVE in FRONT of your given number and make them almost positive (e.g. 0)

|20| = (positive) 20 because it’s the absolute value of itself ; if your equation was |-20| you would have to say your absolute value would be 20

Answer: |20| = 20 ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

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A jewelry store has 311.75 ounces of 14-carat gold in stock.

WARRIOR [948]

Answer:

$\boxed{\text{(a) 86 necklaces; (b) \$2220}}$

Step-by-step explanation:

(a) Number of necklaces

3⁵/₈ = 3.625

$\text{No. of necklaces} = 311.75\text{ oz} \times \dfrac{\text{1 necklace}}{3.625\text{ oz}} = \textbf{ 86 necklaces}\\\\\text{You can make } \boxed{\textbf{86 necklaces}} \text{ from 311.75 oz of 14K gold}$

(b) Value of gold in each necklace

There are 3.625 oz of 14K gold in each necklace. Pure gold is 24K.

$\text{Mass of pure gold} = \text{3.625 oz} \times \dfrac{\text{14K}}{\text{24K}} = \text{2.1146 oz}$

Pure 24K gold is worth $1050/oz.

$\text{Value of pure gold} = \text{2.1146 oz} \times \dfrac{\text{\$1050}}{\text{1 oz}} = \textbf{\$2220}\\\\\text{The value of the gold in each necklace is } \boxed{\textbf{\$2220}}$