X is a variable, while parenthesis suggest multiplication. Y equals the amount of her book left.
(1/5) + 3(1/5) + x = 1
(1/5) + (3/5) + y = 1
Combine like terms
(4/5) + x =1
Subtract four-fifths
x = (1/5)
Lydia has 1/5 of her book left to read.
The rate of change on the line is x line goes to the right and y line goes upward
Answer:
Step-by-step explanation:
Let
s -----> a number
we know that
The expression 22 divided by a number s, is the same that say the quotient of 22 and s
where
22 is the numerator and s is the denominator
therefore
To find out how much each book cost first we will subract to find out how many 2 books cost. Then we will divide. last but not least we will check our wok. Lets do it:-
30 - 8.95 = <span>21.05
</span><span>21.05 - 7.25 = 13.80
</span>
CHECK OUR WORK:-
13.80 + 7.25 = 21.05
21.05 + 8.95 = 30
We were RIGHT!!!
Now lets divide:-
13.80 ÷ 2 = 6.90
1 book costs $6.90.
CHECK OUR WORK:-
6.90 × 2 = 13.80
We were RIGHT!!!!
So, 1 book costs $6.90.
Hope i helped ya!!
You will need 2 oranges for 1 cup