If 14 g of a radioactive substance are present initially and 3 yr later only 7 g remain, how much of the substance will be pres
1 answer:
You might be interested in
Answer:
The cost of 12 trading cards are less than $12 so we can say that unit price of the card is lesser than $1.
Unit price per card is $0.46.
Step-by-step explanation:
Given:
Cost of 1 package of trading card = $5.52
Number of trading card in a package = 12
We need to explain how can we tell that the unit price per card is less than $1.
Also We need to unit price per card.
Solution:
Now we can see that;
Cost of 1 package of trading cards is $5.52
And we know that;
1 package contains 12 trading cards.
It means that;
Cost of 12 trading cards is $5.52.
From above we can say that;
If the cost of 12 trading cards were $12 or more than $12 than we would say that unit price of the card is $1 or greater than $1 respectively.
But the cost of 12 trading cards are less than $12 so we can say that unit price of the card is lesser than $1.
Now we will find the unite price per car.
12 trading cards =$5.52
1 trading card = Cost of 1 trading card.
Using Unitary method we get;
Cost of 1 trading card =
Hence Unit price per card is $0.46.
Answer:
The scale factor is
Step-by-step explanation:
The volume of the original prism is
The volume of the dilated prism is
Let the scale factor be .
To find the volume of the dilated prism, we multiplied by .
Answer:
1. 30
2. 150
Step-by-step explanation:
Lets assume tan(x) = u
Now we solve for 'u'
add 1 on both sides
, divide both sides by 3
Take square root on both sides
We replace tan(x) for 'u'
x = 30 because in first quadrant
x = 30 (tan is positive in first quadrant)
x = 150 because in second quadrant
tan is negative in second quadrant