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rewona [7]
2 years ago
9

Guadalupe can do a job in 15 hours. If she works with lan, together they can get the job done in 10 hours. How long would it tak

e lan to do the job alone?
Mathematics
1 answer:
krok68 [10]2 years ago
7 0

Answer:

30 hours

Step-by-step explanation:

The equation we use is 1/15 + 1/x = 1/10. X being the amount of time it takes Ian alone. X works out to 30 hours which is the answer

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Which of the following is the solution to the differentiable equation dy/dx=4x/y, where Y(2)=-2
cupoosta [38]

Answer:

b is the answer

Step-by-step explanation:

7 0
3 years ago
Consider a sequence whose first three
snow_tiger [21]

Answer:

Below, depends if 27 is term number 1 or term number 0.  Answered for both cases.  

Step-by-step explanation:

The most common sequences are arithmetic and geometric, so lets check those first.

Arithmetic first since its the easiest.

to go from 27 to 21 we subtract 6, if we subtract 6 from 21 again we get to 15, which is what we need, so it is indeed arithmetic.

Explicit formula is basically of the form of y=mx+b with an arithmetic sequence.  the m is the common difference and b is the first term minus the common difference.  so lets fill those in.  y = -6x + 33

Then it usually has n as the x and y f(n) so we'll just put those in

f(n) = -6n + 33

This si as long as the first term is labeled as term number 1 and not term number 0.  if you have 27 as term 0 instead just make 33 back to 27, so f(n) = -6n + 27

Let me know if this doesn't make sense.

5 0
3 years ago
Abygail is building a dollhouse. She has boards that are two different lengths. One long board is 10 inches longer than the tota
nikitadnepr [17]

Answer:

9 in

Step-by-step explanation:

a short bored is 9 in

37-10=27

27÷3=9

So that means a short bored is 9 in

7 0
2 years ago
All of the students in sixth grade either purchased their lunch or brought their lunch from home on Monday.
Nat2105 [25]

Answer:

250

Step-by-step explanation:

1. 190 students is the number that is 100-24 = 76% of the 6th grade population

0.76x = 190

x = (190/.76) = <u>250</u>

4 0
3 years ago
Read 2 more answers
WHAT IS PRODUCT OF (6X+5)(X^2-2X+1)
Anettt [7]
(6x+5)(x^2-2x+1)=6x\cdot x^2-6x\cdot2x+6x + 5\cdot x^2-5\cdot 2x+5 =\\ \\=6 x^3-12x^2+6x + 5 x^2- 10x+5 =6 x^3-7x^2-4x+5


4 0
3 years ago
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