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SashulF [63]
3 years ago
9

On Monday, Anya read 11 pages of a book in 1/2 hour. On Tuesday, she read 18 pages in 3/4 hour. Did Anya's reading speed increas

e by more than 10% from Monday to Tuesday? Justify your answer.
Mathematics
1 answer:
Firdavs [7]3 years ago
7 0
Well i think so i am not to sure i cant answer this one
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Please help, Don't know the answer
andre [41]
The distance Train A travels is represented by
where d is the distance in kilometers and t is the time in hours
The speed of train A is 70 kilometer per hour
To find speed of train B use the table
find out slope

The speed of train B is 75 km per hour
The speed of the train B is more
Train B is going faster
5 0
3 years ago
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If f varies jointly as q^2 and h and f=-81 when q=3 and h=3 find f when q =4 and h=3
Aneli [31]

Answer:

F=48

Step-by-step explanation:

see the explanation and workings in the picture above.

5 0
3 years ago
What is X and A??? The have to equal the same thing, but one is multiplying and one is adding (picture)
Aleksandr-060686 [28]
X*a = 244  is equation (1)
x+a = 2    is equation (2)

Solve equation (2) for 'a' to get
x+a = 2
a = 2-x
Call this equation (3)

We will plug equation (3) into equation (1)
x*a = 244
x*(a) = 244
x*(2-x) = 244
Notice how the 'a' is replaced with an expression in terms of x

Let's solve for x
x*(2-x) = 244
2x-x^2 = 244
x^2-2x+244 = 0

If we use the discriminant formula, d = b^2 - 4ac, then we find that...
d = b^2 - 4ac
d = (-2)^2 - 4*1*244
d = -972
indicating that there are no real number solutions to the equation x^2-2x+244 = 0

So this means that 'x' and 'a' in those two original equations are non real numbers. If you haven't learned about complex numbers yet, then the answer is simply "no solution". At this point you would stop here. 

If you have learned about complex numbers, then the solution set is approximately 
{x = 1 + 15.588i, a = 1 - 15.588i}
which can be found through the quadratic formula

Note: it's possible that there's a typo somewhere in the problem that your teacher gave you. 

6 0
3 years ago
Select the correct answer from each drop-down menu.
masha68 [24]

Answer:

She rode her bike 21 miles

3 0
3 years ago
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the science department buys the equipment shown in the table. they bought all three items this year. in how many years will they
belka [17]

Answer:

20 years

Step-by-step explanation:

20 is the lowest common multiple of 5,4,2

8 0
3 years ago
Read 2 more answers
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