Start from
and cross multiply the denominators (i.e. multiply both sides by
The result is
Expand the left hand side:
Bring all terms involving p to the left, and all terms involving q to the right:
Divide both sides by 21q:
Now we have a ratio between multiples of p and q. It's not exactly the one we want, though. Nevertheless, we can keep multiplying both sides by approriate constants in order to get the ratio we want:
Divide both sides by 5:
Multiply both sides by 3:
Answer:
A
Step-by-step explanation:
It’s just like adding except with a variable so 5x+3x is like 5+3 except with x so 8x+3=16
Answer:
A) 8x + 3 = 16
Step-by-step explanation:
you can simplify 5x and 3x by adding them. That gives you 8x. the rest stays the same.
The fuel for a chain saw is a mix of oil and gasoline. The label says to mix 6 ounces of oil with 16 gallons of gasoline.
A. How much oil would you use if you had 32 gallons of gasoline?
B. Set up a proportion to use in solving this problem.
Thing 2
A. EXPLAIN how to set up a proportion and then
B. solve the problem below.
A recipe calls for 9 tablespoons of milk for every 21 cups of flour. If the chef puts in 168 cups of flour, how many tablespoons of milk must the chef add?
b) 1/3 >2/4
c) 1/8 > 3/4
d) 2/5 < 1/2
e) 4/12 < 1/6
f) 3/5 = 7/10