Hence, -45 is the number which when added to the given fraction will give 2/3
Further explanation:
Given fraction is:
Let x be the number which has to be added to numerator and denominator
Then
Cross-multiplying
Hence, -45 is the number which when added to the given fraction will give 2/3
Keywords: Linear equation in one variable, Cross-multiplication
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So first we need to know this:
Two negative signs make a positive
Two positives make a positive
One positive and one negative makes a negative.
So we can turn the equation to -4 -44 - - 1
2 minuses make plus
-4 -44 +1 = -48 +1 = -47
Answer:
28
Step-by-step explanation:
the amount of sheets u would need is 3 and a 1/2 because they each contain 10 tickets so then u multiply 8 dollars by 3 and 1/2 which leads u to 28
Answer:
Option D.
Step-by-step explanation:
Total number of cards = 52
Total number of cards of each suit (♠, ♣,♦, and ♥) = 13
The probability of getting a card of heart is
The probability of getting a card other then heart is
If Ming randomly draw a card from the deck 300 times, putting the card back in the deck after each draw, then the number of cards she will draw something other than a heart is
Close to 225 times but probably not exactly 225 times.
Therefore, the correct option is D.
1/9
Here's the proper explanation:
Since the vertex is (2,-1), the original equation will look like this: y=a*(x-2)^2-1
When the substitution happens we get to this:
0=a*(5-2)^2-1 then 1=a*(5-2)^2 -> 1=a*9
So, a=1/9! Written in another form:
1/9x^2-4/9x+4/9-1
Hope could help :)