Answer:
20 bicycles and 10 tricycles.
Step-by-step explanation:
Let the number of bicycles and tricycles be x and y respectively.
Each vehicle has 1 seat. Each bicycle 2 wheels and each tricycle 3 wheels.
Then we have the system of equations:
x + y = 30 ............ (1)
2x + 3y = 70.........(2)
Multiply the first equation by -2:
-2x - 2y = -60......(3)
Adding (2) + (3):
y = 10
Substituting for y in equation (1):
x + 10 = 30
x = 20.
Answer:
Conversely, if n is divisible by 5, then n is the sum of five consecutive integers. In particular, this gives n = 5m + 10 = 5(m + 2) and, since m + 2 is an integer, this shows n is divisible by 5
Answer:
x = 60
Step-by-step explanation:
<u>Step 1: Subtract 5 from both sides
</u>
65 - 5 = 5 + x - 5
60 = x
Answer: x = 60
Arc WTS is twice the measurement of angle R.
So arc WTS equals 2R
Arc WRS is twice the measurement of Angle T.
So arc WRS equals 2T
The sum of the two arcs WTS and WRS equal 360 degrees,
So now we have 2R + 2T = 360.
Divide all terms by 2:
R + T = 180
The sum of supplementary angles equal 180 degrees, therefore angles T and R are supplementary.
Answer:
0.25¢
Step-by-step explanation:
12.00÷48=0.25 or
1200÷48=25 then move decimal 2 places to the left.