Answer: 30
Step-by-step explanation: square 24 and 18 (576 & 324) then add them together (900), then the square root of 900 is 30, so 30.
Answer:
Y= -8
X= 3
Step-by-step explanation:
apply -(-a)=a rule
-23+4*8/3
-23+4*8=9
9/3
=3
2y-(3)=-19
y= -8
Divide 405 by 6 which is 67.5
So 67.5 per hour but it wants minutes
So divide 67.5 by 60 (minutes in an hour) and you’ll get 1.125 pages per minute
Answer: girls=20, sister=10
Step-by-step explanation:
Let x = the girl's sister's age (present)
Let 2x= the girl's age (present)
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According to the question
(x+5)(2x+5)=375
Expand parentheses by FOIL (First Outer Inner Last)
2x²+5x+10x+25=375
Combine like term (5x and 10x)
2x²+15x+25=375
Subtract 375 on both sides
2x²+15x+25-375=375-375
2x²+15x-350=0
Find the factors (cross factor)
(x-10)(x+17.5)=0
x=10 or x=-17.5 (rej) ⇔ the age can't be negative
the girl's age is 20, and her sister's age is 10.
Answer:
Step-by-step explanation:
Given:
Gisselle has 1/2 of a candy bar.
She role off 1/2 of what she had and split it into three equal pieces.
Question asked:
What fraction of a candy bar was each piece?
Solution:
Gisselle has = 
She role off = 
As she split it into three equal pieces, we will divided it by 3, we get,
Therefore, fraction of a candy bar of each piece is
