Answer:30km/hr
Step-by-step explanation:
Total distance=294km
Speed=s
Distance=d
Time=t
First drive:
t=5
d=s x t
d=s x 5
d=5s
Second drive:
t=4
Speed is 6km/h greater than the first speed
The new speed= s+6
d=4(s+6)
Total distance=294
5s + 4(s + 6)=294
5s + 4s + 24=294
Collect like terms
5s + 4s=294 - 24
9s=270
Divide both sides by 9
9s/9=270/9
s=30
First speed=30km/hr
Answer:
You're right must be a different problem
Step-by-step explanation:
You know this, but just to verify:
1. Find Common Denominator:
6 15/21 - 6 7/21
2. Subtract
6 15/21 - 6 7/21 = 8/21 feet
The factors of 49 are: 1, 7 and 49.
The factors of 50 are: 1, 2, 5, 10, 25 and 50.
The common factor is 1.
Answer:
10
Step-by-step explanation:
yellow
6+6+3=15
so
for green
4+4+2=10
