Answer:
14 years old
Explanation:
Use this system of equations if G=George and J=Jeannie:
G-12=J
50=(G+5)+(J+5)
So, change second equation becomes
40-G=J
Then use substitution:
G-12=40-G
2G=52
G=26
Then, to find Jeannie’s age, go back to one of the equations and substitute G.
26-12=J
So, J=14
Jeannie is currently 14 years old.
Answer:
The answer in the procedure
Step-by-step explanation:
Let
x-----> amount corresponding to 75%
we know that
using proportion
The traveling speed of each ship is :
- Ship A = 24 mph
- Ship A = 24 mphShip B = 26 mph
Distance apart at 12:00 noon = 176 miles
Recall :
Distance = speed × time
Ship A :
Departure time = 9AM
Speed = s
Travel time = 12 - 9 = 3 hrs
Distance covered = 3 × s = 3s
Ship B :
Departure time = 8AM
Speed = 2+s
Travel time = 12 - 8 = 4 hours
Distance = 2+s(4) = 8 + 4s
Distance apart = 3s + (8 + 4s)
176 = 3s + 8 + 4s
176 = 7s + 8
176 - 8 = 7s
168 = 7s
s = 168 / 7
s = 24
Ship A speed = s = 24mph
Ship B speed = s + 2 = 26 mph
Learn More : brainly.com/question/18796573
Answer:
210 candy bars
85 gum
Step-by-step explanation:
$200=0.75cb+0.50gum
cb+gum=295
gum=295-cb
substitute
$200=0.75cb+0.50(295-cb)
$200=0.75cb+147.5-0.50cb
$200=0.25cb+147.5
0.25cb=52.5
cb=210
gum=295-210=85
