Answer:
x=1
y=2
Step-by-step explanation:
Multiply the second equation by 2
and then solve!
Answer:
Step-by-step explanation: use Triangle formula Area= 1/2xbxh
1/2x6x6=18
18 sq inches for one triangle then multiply by 24 for the whole quilt
You got this
Answer:
60 minutes for the larger hose to fill the swimming pool by itself
Step-by-step explanation:
It is given that,
Working together, it takes two different sized hoses 20 minutes to fill a small swimming pool.
takes 30 minutes for the larger hose to fill the swimming pool by itself
Let x be the efficiency to fill the swimming pool by larger hose
and y be the efficiency to fill the swimming pool by larger hose
<u>To find LCM of 20 and 30</u>
LCM (20, 30) = 60
<u>To find the efficiency </u>
Let x be the efficiency to fill the swimming pool by larger hose
and y be the efficiency to fill the swimming pool by larger hose
x = 60/30 =2
x + y = 60 /20 = 3
Therefore efficiency of y = (x + y) - x =3 - 2 = 1
so, time taken to fill the swimming pool by small hose = 60/1 = 60 minutes
Numerical expression:
2 * 8 - 4 or 12
Good luck :)