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25 to 45
25 5
------- = -------
45 9
35:10
35 7
-------= ------
10 2
what other ways can you write
5 to 22
5:22
5
------
22
6:9
6 2
-----= -----
9 3
cat weights 10lbs gets 150cc lactose, how much do u give??
150cc 15cc
----------= --------
10 lbs 1 lb
if someone makes $44 in 4 hrs. How much do they make an hr??
$44
--------- = $11/an hr.
4 hrs
Marci joined a book club that charges $108 for 9 books. What is the cost per book??
$109
----------- = $12 per book
9
??????
-----------
???????
numerator
-----------------
denominator
translate each statement into a proportion.
2 is to 7 as 24 is to 84
2 24
------=-------
7 84
translate each statement into a proportion.
3 is to 8 as 18 is to 48
3 18
-----=--------
8 48
Is this fraction equal?
2 18
------=-------
11 99
cross products to see if the fractions are equal.
99×2 =198
11×18=198
yes they r =
Is this fraction equal?
2 18
------=-------
11 99
cross products to see if the fractions are equal.
99×2 =198
11×18=198
yes they r =
these fractions are not =
STUDY!!!
Find the value of x in each proportion
x 5
------=------
8 2
2x=8×5
2x=40
-----------
2 2
x=20
A 1 Oz serving of Deluxe Mixed Nuts contains 170 calories. How many calories are there in a 40 Oz jar?
1 Oz. 40oz.
----------=----------
170c c
1c=170×40
1c=6,800
----- --------
1 1
c=6,800 calories
when u divide a fraction what is the first step?
-First step you flip the second fraction and x's.
Ex: of dividing a fraction.
6 3
----- ÷ -----
14 8
6 8 8
------ × --------= -------
14 3 7
Reciprocal
1.) 1 2.) 5
----
3
Switch the problems.
3 5 1
----- ----- switch -----
1 1 5
31 8
----- + -------
a a
= 39
------
a
x 5
----- - ----
7 7
= x-5
------
7
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