Answer:
The formula for distance problems is: distance = rate × time or d = r × t. Things to watch out for: Make sure that you change the units when necessary. For example, if the rate is given in miles per hour and the time is given in minutes then change the units appropriately.
Step-by-step explanation:
Here is an example.
Two cars started from the same point, at 5 am, traveling in opposite directions at 40 and 50 mph respectively. At what time will they be 450 miles apart?
After t hours the distances D1 and D2, in miles per hour, travelled by the two cars are given by
D1 = 40 t and D2 = 50 t
After t hours the distance D separating the two cars is given by
D = D1 + D2 = 40 t + 50 t = 90 t
Distance D will be equal to 450 miles when
D = 90 t = 450 miles
To find the time t for D to be 450 miles, solve the above equation for t to obtain
t = 5 hours.
5 am + 5 hours = 10 am
The domain is all the values of x which are covered by the function. In this case, the domain is x <= 0. The range is all the values of y that the function passes through, so in this case, the domain is y >= 0. The only correct statement among the choices is the second.
Answer:
can be a perfect square if the factor 
is a paired.
Hence,
,will be a perfect square.
Hence,the square root is 
Answer:
His balance will be $340.
Step-by-step explanation:
1.) 360-45=315
- You do this because when you make a withdrawal you are removing a specific amount of money from your account. In this example you are making a withdrawal (removing) of $45 from your account of $360.
2.) 315+25=340
- You did this because a deposit is a specific amount of money you are adding. In this example you are depositing (adding) $25 to your new total of $315.
Answer:
5
Step-by-step explanation:
26 × 10 ÷ 100 = 52 · x ÷ 100
260 = 52 · x
x = 5
