Answer:
Sam: $30; Bethan: $24
Step-by-step explanation:
Since the ratio is 5:4 Sam has to pay 5/9 of the total which is 54. To find how much he pays set up the equation like this.
Cross Multiply
54(5)=9x
270=9x
Divide by 9
30=x
So Sam pays $30. To find out how much Bethan pays simply subtract 30 from 54
54-30=24
So Bethan pays $24
Answer:
2 and a half months
Step-by-step explanation:
You need to divide 50 by 20 (because member ship+netflix)
1.
<span><span>time she spent walking = T
</span><span>
</span></span>
time she spent jogging = 1.2 - T
<span>
<span>
</span></span>
<span><span>2T + 4(1.2 - T) = 3.4
</span><span>
</span></span>
<span><span>2T + 4.8 - 4T = 3.4
</span><span>
</span></span>
<span><span>2T - 4T = 3.4 - 4.8
</span><span>
</span></span>
- 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
Donald can feed 61 animals approximately
<em><u>Solution:</u></em>
Given that Donald has 
pounds of grain to feed his farm animals
Each animal eats 
of a pound of feed
<em><u>To find: number of animals he can feed</u></em>
From given information,
Total pounds of grains = 
One animal feeds = 
number of animals he can feed = Total pounds of grains divided by one animal feeds
Thus he can feed 61 animals approximately
Answer:
t-20
Step-by-step explanation:
k+20=t
Subtract 20 from both sides:
k= t-20
