8: slope is 1/2 and y intercept is 0
9: slope is 7/4 and y-intercept is 0
He would be able to purchase 7 packs of baseball cards.
you would have to cross-multiply and divide. the work would look like
$12 $21
— = —
4 x
you multiply 21 by 4 and get 84, then divide by 12 and get 7
Answer:
Step-by-step explanation:
3x - 5 = 0
3x = 5
x = 5/3
2x - 10 = 0
2x = 10
x = 10/2 = 5
The chocolate will last for 1 day, if she gets 4 more dragons
<h3>How to determine the number of days?</h3>
The expression can be represented using the following ratio:
Ratio = Dragons : Days : Chocolate
For the 2 dragons she has, we have:
Ratio = 2 : 12 : 300
When she gets 4 more dragons, we have:
Ratio = 6 : days : 300
Equate both ratios
6 : days = 12 : 2
Express as fraction
days/6 = 2/12
Multiply both sides by 6
days = 6 * 2/12
Evaluate
days = 1
Hence, the chocolate will last for 1 day
Read more about ratios at:
brainly.com/question/2328454
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