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tatyana61 [14]
3 years ago
9

Train A and train B leave a central station at the same time. They travel the same speed, but in opposite directions, with train

A heading towards station A, and train B heading towards station B. Train A reaches station A after 2 1/2 h. Train B reaches station B after 4 h. Station A and Station B are 585 mi apart. What is the rate of the trains? Enter your answer in the box.
Mathematics
2 answers:
n200080 [17]3 years ago
7 0

Answer:

90

Step-by-step explanation:

lesantik [10]3 years ago
3 0

Your ANSWER would be 75

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State the measurement scale for each. a. Cholesterol level b. Defect type c. Time of first class d. Opinion on a 5 point scale,
enyata [817]

Answer: a. Ratio b. Nominal c. Interval  d. Ordinal

Step-by-step explanation:

1)Ratio:You can do all sort of arithmetic on the cholesterol level.

2)Nominal: These cannot be ordered or arithmetic cannot be applied

3)Interval: It is interval because it is a number and midnight means 0 so you cannot use it for division

4)Ordinal: You can arrange it in increasing or decreasing order.

6 0
4 years ago
If p is the smallest of four integers, what is their sum interms of P​
xxMikexx [17]

Answer:

If  p  is the smallest of  n  consecutive integers of the same sign than we have  p ,  p+1 ,  p+2 ,  … ,  p+(n−1) ,

So the sum is

∑k=0n−1(p+k)=∑k=0n−1p+∑k=0n−1k=np+n2−n2  

Here  n=4  

So we have  4p+6  

And checking

p+(p+1)+(p+2)+(p+3)=4p+6  

Note if  p=−v  

Than you have the same thing as if  p=v−n+1  just negative for example  3  consecutive integers the smallest is  −5  so the sum is  −5+(−4)+(−3)=3×−5+32−32=−15+3=−12  

On the other hand:

−(3+4+5)=−(3×3+32−32)=−(9+3)=−12  

If  p=−v  the sum of next  v+1  integers is  −(∑k=0vk)=−(v2+v2)  

Than needs an other  v  integers to bring it up to  0  again. From there it is

∑k=0hk=h2+h2  

Where  h=n−(2v+1) .

So recap if  p  is the smallest of  n  consecutive integers their sum is

p+(p+1)+(p+2)+…+(p+(n−1))=⎧⎩⎨⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪np+n2+n2−(n|p|+n2+n2)((n−|p|)2+(n−|p|)2)−(|p|p+|p|2+|p|2)((n−|p|)2+(n−|p|)2)n≥0p<0∧n<|p|+1p<0∧|p|<n<2|p|+1p<0∧n>2|p|+1

Step-by-step explanation:

6 0
3 years ago
Use complete sentences to describe why Set A = {x|x is an even whole number between 0 and 2} = ∅.
Vanyuwa [196]
A={x|x is an even while number between 0 and 2} = ∅ since there is no number between 0 and 2 that is an even whole number. So there is no number to be substituted for x, resulting in an empty set.

Hope that helps!
3 0
3 years ago
Can someone help me with all of them?
Mila [183]

Answer:

To calculate annual compound interest, multiply the original amount of your investment or loan, or principal, by the annual interest rate. Add that amount to the principal, then multiply by the interest rate again to get the second year's compounding interest

Step-by-step explanation:

A = P (1+ r/n) ^nt

A = final amount is found if you input 12 months at r

P = initial principal balance  = $100 if every month

r = interest rate then interest rate will be 12 month

n = number of times interest applied per time period  = 1

t = number of time periods elapsed t = eg 10

6 0
4 years ago
Order these decimals
Serjik [45]
Least 8.334
67/8
8.38
Greatest 8 4/9
Give me brainliest please :))
8 0
2 years ago
Read 2 more answers
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