Answer:
150
Step-by-step explanation:
60 minutes in 1 hour
3x10= 30 in one hour
30x5=150 30 trucks in 5 hours
Distance = rate*time
convert minutes to hour first because the question talking about 15 mile per hour
40 mins = 40/60 2/3 hrs
30 mins = 30/60 = 1/2hrs
Assume that s be the speed when Fritz driving, so
s + 15 will be the speed of the train.
We know the time we know the speed, Next
distance that Fritz drive =
distance the train travel =
The question: Assume that the train travels the same distance as the car
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Now we know that Fritz drive at 45 mph,
distance =
Answer:
obj?
Step-by-step explanation:
Answer:
Step-by-step explanation:
if Meredith bought 20 kg and Courtney bough 10 kg less you'd do 20-10 to find how much Courtney bought, hopefully that makes sense. We are going to do the same thing here.
That means 2/5 - 1/10. To subtract fractions you need common denominators, like 5/6 - 1/6 = 4/6. The bottom numbers need to be the same. So how do we do that? Well, that 4/6 can be rewritten as 2/3, they are the same number. So we want to do the same with either 2/5 or 1/10... or maybe both. Well 4/6 becomes 2/3 because 4/2 = 2 and 6/2 = 3, so we need to use that thinking.
in 2/5 - 1/10, do you see something we can multiply by to make the bottom numbers the same? What if you multiplied 2/5 by 3 on the top and bottom? that would get us 6/15. Well that's too high, maybe we try 2 then. 4/10. And hey, that got us a 10, so we idn't have to change 1/10. Now we can do the problem.
2/5 - 1/10 = 4/10 - 1/10 = 3/10.
So Courtney bought 3/10 kg
To find the total weight we add. So now we have a similar problem.
2/5 + 3/10 Well we know what to change 2/5 to to get a 10 at the bottom.
2/5 + 3/10 = 4/10 + 3/10 = 7/10.
So in total they bought 7/10 (seven tenths) of a kilogram.
Let em know if something didn't make sense.
Answer:
18
Step-by-step explanation:
we know that
[the area rectangular cookie sheet]=30*50--------> 1500 cm²
let's assume that each biscuit is inscribed in a square of 8 cm side
in the side of 30 cm can be placed -----> 30/8--------> 3.75-----> 3
in the side of 50 cm can be placed -----> 50/8--------> 6.25-----> 6
The maximum number of complete biscuits is 3*6------> 18 biscuits
the answer is 18 biscuit
