Answer:
a) 2a + 3c = $44.50
a + 2c + $25.50
b) $19
Step-by-step explanation:
Simultaneous equations. A = adult. C = children
2a + 3c = $44.50 (EQUATION 1)
a + 2c = $25.50 (EQUATION 2)
Now solve this using the method of elimination:
2a + 3c = $44.50 (EQUATION 1)
a + 2c = $25.50 (EQUATION 2)
Multiply equation 2 by 2 so that both equations have the same a coefficient.
2a + 4c = $51 (NEW EQUATION 2)
Now subtract equation 1 from equation 2:
2a - 2a + 4c - 3c = $51 - $44.50 (2a cancels out)
c = $6.50
Now substitute c into one of the equation, in this case, I'm using original equation 2.
a + 2($6.50) = $25.50
a + $13 = $25.50
a = $12.50
Total cost of one adult and child = $6.50 + $12.50
= $19
Expected speed: 400 m in 50 seconds
Therefore, speed in m/sec = 8 m/sec
Given: 1 mile =1609 meters
1 meter = 1/1609 miles
1 hour = 60 sec x 60 sec =3600 seconds
1 second = 1/3600 hour
To convert meters to miles, we should multiply it by 1/1609
To convert seconds to hour, we should multiply it by 1/3600
Therefore, 8 m/sec = 8 x (1/1609) Ă· (1/3600)
= (8 x 3600)/1609
=17.9 miles / hr
Answer:
If you are adding to fractions that are both greater than 1/2, the sum will be greater than 1.
Step-by-step explanation: 1/2 + 1/2 =1
Since both fractions are greater, obviously the sum will too.
Examples: 2/3+3/4= 1 5/12 4/6+6/9= 1 1/3
Hope this helps
Answer:
Step-by-step explanation:
Let's solve for L.
Step 1: Flip the equation.
Step 2: Add 
to both sides.
Step 3: Divide both sides by 
.
Answer:
Answer:
Step-by-step explanation:
