Question 1)
Gwen has already burned 100 calories when Tristan and Keith started, and he continues to burn 10 calories per minute. The equation for Gwen is
y = 100 + 10x
Question 2)
`Tristan is burning 125 calories every 10 minutes. His burning calories rate is 12.5 calories per minute. The equation for Tristan is
y = 12.5x
Question 3)
Keith is burning 300 calories in 30 minutes. His rate per minute is 10 calories per minute. The equation for Keith is
y = 10x
57.50 - 8 = 49.50 more she needs to save
49.50 / 4.50 = 11
she needs to save for 11 weeks
C) 36.05 is your answer
your whole number = thirty-six = 36
your decimal point = five one-hundredths = 0.05 (note that it starts with tenths, then becomes hundredths).
-------------------------------------------------------------------------------------------------------------------
hope this helps
A radian is defined as the angle in a unit circle that gives an arc length of one. A unit circle is a circle with a radius of exactly one that is centered at the origin. Because both radians and degrees are based on the circle, 360 degrees is equal to 2pi radians.
