Answer:
The more expensive book cost $90, the other two combined cost $60.
Step-by-step explanation:
x = cost of more expensive book
y = subtotal cost of the other books
x = 50% more than y, so x = 1.50y = 1.5y
x + y = total cost = $150
1.5y + y = 150
y = 150/2.5 = 60
x = 1.5y = 1.5(60) = 90
Answer:
1/3 or 0.3...
Step-by-step explanation:
Answer:
It'll take a bucket loads of 
to empty world's ocean
Step-by-step explanation:
Given
To get the number of bucket loads, we simply divide the size of the ocean by the size of the bucket;
Expand the numerator
Recall that
So, the expression becomes
Simplify the numerator using laws of indices
Expand the denominator
Split fraction
Simplify fraction using laws of indices
Hence, it'll take a bucket loads of to empty world's ocean
Answer:
An irrational number is a number which cannot be expressed in a ratio of two integers. In rational numbers, both numerator and denominator are whole numbers, where the denominator is not equal to zero. While an irrational number cannot be written in a fraction.
Step-by-step explanation: Cuz i said so
Answer:
x=0 and x=−2
Step-by-step explanation:
Explanation:
You can factor x2+2x=0
as: x(x2)=0
Now, we can solve each term for 0:x=0 - no other work needed,
and
x+2=0
x+2−2=0−2
x+0−2x=−2
