Answer:
49.2 miles
Step-by-step explanation:
The distance remains the same. d
The time spent on the outbound trip is t1 = -------------
35 mph
and that on the inbound (return) trip is
d
t2 = -------------
45 mph
We combine these two fractions and set the sum = to 2.5 hours:
d(1/35 + 1/45) = 5/2
We wish to solve for d, the distance between home and work.
The LCD of 35, 45 and 2 is 630.
1/35 becomes 18/630; 1/45 becomes 14/630, and 5/2 becomes 1575/630. Then we have the simpler equation d(18 + 14) = 1575, or
d(32) = 1575, and d is then
d = 1575/32 = 49.2 miles
This problem is unsolvable with the answers you gave. The ratio of quarters to nickels would be 5 to 15, or 1 to 3 for fractions.
Answer:
salt does she need for her recipe.
Step-by-step explanation:
As per the statement:
For her recipe:
She needs = of a cup of sugar.
It is also given that: 1/8 as much salt as sugar.
⇒ She needs salt for her recipe =
Therefore, salt does she need for her recipe.
Answer: 100/25 and 4/1 and 60/15
Step-by-step explanation:
20/5=4, 100/25=4, 4/1=4, and 60/15=4
Answer:
16 lamps
Step-by-step explanation:
we know that
96 lamps represent the 100%
so
using proportion
Find out how many lamps represent 16 2/3%
but first convert to an improper fraction
Apply proportion