Answer:
x=2, y=8
Step-by-step explanation:
Set up the equations:
4x=y
1/4x+1/y=1/4
---------------------
1/y+1/y=1/4
2/y=1/4
cross product
y*1=2*4
y=8
4x=8
x=8/4=2
Answer=5288
Step-by-step explanation: I got it know so basically (18*274) + (89*4) which equals 4932+356=5288
You replace x with 4 7•4•2-6•4= 32
560 kilometers flied in each hour
Answer:
16 bicycles and 21 tricycles
Step-by-step explanation:
Both bicycles and tricycles have 1 set of handlebars. Bicycles have 2 wheels while tricycles have 3.
Using this information, set up a system of equations, where b is the number of bicycles and t is the number of tricycles:
b + t = 37
2b + 3t = 95
Solve by elimination by multiplying the top equation by -2:
-2b - 2t = -74
2b + 3t = 95
t = 21
Then, plug in 21 as t into one of the equations:
b + t = 37
b + 21 = 37
b = 16
So, there are 16 bicycles and 21 tricycles
