X+y=15
0.3x+0.6y=0.4*15=6
solve the system of equation.
Multiply equation one by 0.3: 0.3x+0.3y=4.5
subtract the new from the second equation: 0.3y=1.5
y=5
x=10
The answer is B.
I timesed 50 by 100 and 1,000. So 5 would be in the thousands place.
We can work out the circumference of the wheel by using the equation
C = πd
C = π × 2
C = <span>6.28318530718
C = 6 feet
If 1km is 3280 feet, 2km is 6560 feet
6560 </span>÷ 6 = <span>1093.33333333 (recurring)
= 1093
Therefore the bike wheels rolls (approximately) 1093 times to cover 2km.
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Answer:

Step-by-step explanation:
×
9514 1404 393
Answer:
m ≥ 1181
Step-by-step explanation:
Chris's minimum charge indicates he uses his phone more than m minutes, where ...
23 +0.06m ≥ 93.86
0.06m ≥ 70.86
m ≥ 1181
Chris uses his phone at least 1181 minutes per month.