Answer:
part 1: a-50=5. a=55
Step-by-step explanation:
because fifty five minus 50 is equal to 5
If he can read 21 pages in 1 hour he can read 63 in 3 hours
Answer: 3.285714286
Step-by-step explanation: subtract 2 from both sides then divide by 7
Answer: 8.3 minutes
Step-by-step explanation:
1 mile is to 1.60934km so 93 million miles is:
= 93 * 1.609
= 149,637,000 km
Travelling at 300,000 km per second, the number of seconds it takes is:
= 149,637,000/300,000
= 498.79 secs
In minutes this is:
= 498.79/60
= 8.3 minutes
Answer:
4
Step-by-step explanation:
4-2