C+T=127
--------------
2C+4=T
-----------
C+(2C+4)=127
3C+4=127
3C=123
C=41
------------------
When C=41,
41+T=127
T=127-41
T=86
------------------
Check answer:
86+41=127
Answer:Well If you asking for the place value
Step-by-step explanation:
the place value of 1 is 1 × 100 = 100 as 1 is at hundreds place. the place value of 4 is 4 × 1000 = 4000 as 4 is at thousand's place. Would that be right?
He will spend $5.45 if he is driving 85 miles.
How can we figure this out mathematically?
4.36/68=0.064
That means every mile he drives he spends on average 6 cents.
Now 0.064 * 85 equals $5.45.
Please vote my answer brainliest! Thanks.
Answer:
a) 15-t mph;
b) 15+t mph.
Step-by-step explanation:
a) When the boat travels upstream, the current hinders the boat (the speed of the boat decreases). Thus, the speed of the boat upstream becomes
15-t mph.
b) When the boat travels downstream, the current helps the boat (the speed of the boat increases). Thus, the speed of the boat downstream becomes
15+t mph.