Answer:
20 : 100% = x : 115%
Step-by-step explanation:
Do 115 x 20
divide the answer by 100
and that is your answer
Answer:
-7
Step-by-step explanation:
Evaluate the expression for u=10. Subsitute u for 10 and substract it by 17. 10-17= -7
Your answer is -7
The correct answer should be c) 3.
Answer:
(-1,0) and (5,0)
Step-by-step explanation:
The roots are the points where the y-value is 0 and the point lies exactly on the x-axis.
(blank,0)
In this parabola, the points that are exactly on the x-axis is (-1,0) and (5,0)
Answer:
17.5 miles per hour
Step-by-step explanation:
A boat travels upstream on a Mississippi river for 3.5 hours
The return trip takes 2.5 hours
The boat travels 2 miles per hour faster downstream
Let y represent the speed that was travelled upsteam
3.5y = 2.5(y + 2)
3.5y = 2.5y + 5
3.5y - 2.5y = 5
y = 5
Therefore the distance travelled by the boat upstream can be calculated as follows
= 3.5 × 5
= 17.5 miles per hour
