Solve -4x+7y=10;4x-7y=-10 by elimination
Answers
Answer: all solutions
Step-by-step explanation:
all of the numbers cancel out
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Answers
Answer:
Delaney has 36 books and 24 movies currently
Step-by-step explanation:
Given:
Delaney has 4 times as many books as she has movies.
she buys 15 more movies
Ratio of movies to books = 2:3
To Find:
The number of books and movies she is having currently = ?
Solution:
Let the number of movies be x
Then the number of books is 4x
After she buys 15 books, the number of books will be
x+15
Now the ratio of movies to books is 2 : 3
On solving
x = 9
The number of book is
=>
=>
=> 36
The number of movies is
=>x + 15
=>9+15
=> 24
Answers
a 25/75
b 4/8
c 10/100
Answers
Answer:
10/100 , 25/75, 4/8
Step-by-step explanation:
1) You can solve this by using estimation as well as converting the fractions down to a common denominator.
We know that 4/8 is equal to 1/2 so that one is easy.
25/75 if you simplify it completely becomes 1/3, which is smaller than 1/2.
10/100 simplifies to 1/10 which is the smallest out of the 3.
Hence why thee sequence from smallest to largest is:
10/100, 25/75, 4/8
Answers
Answers
for #1 it is y=-3/2x+4 the -3/2 is the slope and the 4 is the y intercept
for #2 it is y=6/+2 the 6/2 is the slope and the 2 is the y-intercept
the y-intercept is where the line passes through the y axis
_
6
yard long,
1
_
4
yard long,
and
2
_
3
yard long. He needs at least 1 yard of cable.
a
Which two pieces together make a length at least
1 yard and closest to 1 yard?
b
If Carl uses the two shortest pieces, how much more cable would he need?
Answers
5/6 = 10/12
1/4 = 3/12
2/3 = 8/12
a)
10/12 + 3/12 = 13/12 = 1 1/12
So you need to use first and second cables
b)
3/12 + 8/12 = 11/12
To reach 1 yard Carl need 1/12 yard cable