You can write this in a proportion way: 6/55 = x/44.
Multiply both sides by 11 to get rid of the 55 and 44: 6/5 = x/4
Now, multiply both sides by 20: 5x = 24. x = 4.8
Therefore, he can run 4.8 miles in 44 minutes.
Answer:
12+2x
Step-by-step explanation:
2(10)+2(x-4) Remember Distributed Property so...
2(10)+2x-8 times everything on the right side of the equation by 2
then work the left side
20+2x-8 becomes
20-8+2x becomes
12+2x now if you need to solve for x take 12/2 and that gives you x=6
Hope this helps!
Answer:
D. -3 + 6
Step-by-step explanation:
Starting from zero, we move 3 units to the left. This gives -3.
We now change direction and move to the right 6 units. This gives +6.
Putting the two movements together gives
The correct choice is D.
Note that moving to the left is considered to be negative while moving to the right is considered positive.
Answer:
it is incorrect because Sasha is supposed to divide by 8 so the answer would be x=7
Step-by-step explanation:
Given that the angle is 25 degrees, we shall apply cosine rule to solve this question.
c^2=a^2+b^2-2abcosC
thus plugging the values we get:
15^2=x^2+20x^2-40xcos25
x^2-36.252x+175=0
thus solving the quadratic using quadratic formula we obtain:
x=[36.252+/-√614.208]/2
x=5.7 km or 30.5 km
