Answer:
y = -6/5
Step-by-step explanation:
Remove parentheses
2y - 2 - 7y = 4
group like terms
2y - 7y - 2 = 4
add similar elements
-5y - 2 = 4
add 2 to both sides
-5y - 2 + 2 = 4 + 2
simplify
-5y = 6
divide both sides by -5
-5y ÷ -5 and 6 ÷ -5
simplify
y = -6/5
An example would be 1/3 as an exact answer and 0.33 as an approximate answer because 1/3 = 0.333..... - a recurring decimal where there are an infinite number of 3's. 0.33 would be correct to the nearest hundredth.
Radicals are exact answers :- like √2 , √5 . Approximate value for √2 is 1.414
The answer is b , because 2/3 has more numbers in its decimal than the others
Perimeter=2l+2w
2l+2w=272
l+w=136
l+57=136
l=79
Answer: $80
Step-by-step explanation:
You have been told that Sarah ended up paying $60, and you were told before that the charge for a lost book was 75%.
Therefore
$60 = 75%
Now we have to find out what amount of money would be equivalent to 100%:
To do this, find out what amount of money would be equivalent to 25% first.
You can do this by dividing both values by 3.
60 / 3 = 20
75 / 3 = 25
So now $20 = 25%
Now find 100% (which is the original amount) multiply each value by 4 :
$80 = 100%
So the school payed $80 for the book.
hope this helps :)
