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Alekssandra [29.7K]
3 years ago
13

Someone please help i don't understand this at all! Suppose that gold is selling at $375/ounce. How many mmilligrams can you buy

for one cent? (16 oz=1 lb; 1 lb=454 g)
Mathematics
1 answer:
NARA [144]3 years ago
7 0
This is about changing over units - the primary piece of onformation is the cost of gold in dollars per ounce ($375). On the off chance that you partition 454g by 16 you get the quantity of grams in one ounce (28.38). So now we can state that $375 gets you 28.38g of gold. 1 penny is a considerable amount less obviously - in actuality it's 37500 times less, on the grounds that there are 100 pennies for every dollar and 375 dollars for each ounce. So in the event that you partition 28.38 grams by 37500 you'll find your solution in grams. Duplicate this response to change over into milligrams on the grounds that there are 1000 milligrams for each gram. 
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Two angles are complementary.The larger angle is 30 degrees more than 4 times the smaller
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Answer:

Step-by-step explanation:

Remark

2 angles are complementary means that 2 angles add up to 90°. That is the guiding princeple behind the problem.

Givens

Let the smallest angle = x

Let the largest angle = 4x + 30

Equation

4x + 30° + x = 90°                   Combine like terms on the left

Solution

5x + 30 = 90                            Subtract 30 from both sides.

5x + 30 - 30 = 90 - 30             Combine

5x = 60                                     Divide both sides by 5

5x/5 = 60/5

x = 12

Answer

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