If i understand your question correctly, the answer is 172 years.
1.
<span><span>time she spent walking = T
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time she spent jogging = 1.2 - T
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<span><span>2T + 4(1.2 - T) = 3.4
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<span><span>2T + 4.8 - 4T = 3.4
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<span><span>2T - 4T = 3.4 - 4.8
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- 2T = - 1.4
T = -1.4—2 = 0.7 hours = 42 minutes
Time she spent jogging = 1.2-0.7 = 0.5 hours = 30 minutes
2.
Against wind :2400 miles in 10 hours
With wind : 2400 miles in 8 hours
Speed of plane = x
Speed of wind = y
t=d/r
against the wind speed x-y mph
with the wind x=y mph
2400/(x-y)=10
2400 = 10x-10y
240 =x-y eq.1
2400/x+y=8
2400 = 8x+8y
300 = x+y eq 2
Add eq1 & eq 2 = 740 = 2x
X = 740/2 = 370 mph for plane
300 = 370 +y
Y = 370-300 = 70 mph wind speed
Point B is the midpoint of line segment AC
so 2 * (AB) = AC
2(3x) = 5x + 21
6x = 5x + 21
x = 21
Answer:
Part a) The drawn in the attached figure
Part b)The slant height of the outside edge is
Step-by-step explanation:
Part a) The drawn in the attached figure
Part b) What is the slant height of the outside edge?
we have that
The diameter of the base of the cone is 12 in
so
----> the radius is half the diameter
Applying the Pythagoras Theorem find the slant height x
substitute the values
Answer:
The y-intercept is 5 and the slope is -2. I know this because (0, 5) is when the long crosses the y-axis and it is going down 2 over to the left 1 which makes the slope -2.