Answer:
1.4 hrs
Step-by-step explanation:
Given ;
The distance to be covered by the motorcycles is 196 miles
1st motorcycle speed= 65 m/h
2nd motorcycle speed= 75 m/h
Find relative speed of the motorcycles= 65+75=140m/h
Time of meeting= Distance to be covered/relative speed
Time of meeting=196/140=1.4 hrs
Answer:
There are 150 blue marbles in Alex's bag.
Step-by-step explanation:
Let , , be the quantities of red, blue and yellow marbles, respectively. From statement we derive three rational equations for initial and final ratios:
Initial ratio
(1)
(2)
Final ratio
(3)
After some algebraic handling we get the following system of linear equations:
(1)
(2)
(3)
The solution of the system of linear equations is:
, ,
There are 150 blue marbles in Alex's bag.
28x4=112
112+49=161
Carlos will spend a total of $161 this year
Answer:
3/20 tons = 300 pounds
4 tons = 8000 pounds
14000 pounds = 7 tons
Step-by-step explanation:
1 ton = 2000 pounds
Answer:
Every quadrilateral's 4 angles add up to 360 degrees.
The four angles would be 100° + 7x +37 + 100° + 7x +37 = 360°
200° + 14x + 74° = 360°
14x = 360° - 274
14x = 86
x = 6.1428571429
Step-by-step explanation: