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GREYUIT [131]
3 years ago
12

From 7 PM to 8 PM rose completed 1/3 of his homework. From 8 PM to 9 PM he completed 1/4 of his homework. What fraction of us ho

mework still remain to be completed after 9 PM
Mathematics
2 answers:
Elden [556K]3 years ago
4 0

Answer:

7/12

Step-by-step explanation:

for questions like these i like to covert it to percentages.

so if 1/3 is completed thats 33% which leaves 67% left to complete

now if we take 67% and find out what 1/4 of it is by dividing by 4 we get 16.75%

now we do 16.75% x 3 = 50.25% which we convert back into a fraction which is about 314/625

Its a more exact answer but you probably want to go with the other guys answer

earnstyle [38]3 years ago
3 0

Answer:

7/12 are left.

Step-by-step explanation:

Convert 1/3 and 1/4 so the have a common denominator. The common denominator is 12 so 1/3 turns into 4/12 and 1/4 turns into 3/12. 3/12 plus 4/12 equals 7/12.

Hope this helps. Hoping for brainliest

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HELP PLZ WILL GIVE BRAINLIEST! find the arrithmetic means in the given sequence<br> -3,?,?,?,93
pav-90 [236]

Answer:

Step-by-step explanation:

The standard form of an arithmetic sequence is

aₙ = a₁ + d(n - 1)

where aₙ is the number of the term in the sequence (in order from first term where n = 1, to second term where n = 2, to third term where n = 3, etc) a₁ is the the first term in the sequence, and d is the arithmetic difference or means.  This is what we are looking to solve for.  

In our sequence we have the first term, -3 (where n = 1) and the fifth term, 93 (where n = 5).  If we fill in what we have, the only unknown is d, our arithmetic difference (means) between each number in the sequence.

Because we have the fifth term, we can write our standard form to fit our needs:

a₅ = a₁ + d(n-1).  Therefore,

93 = -3 + d(5 - 1) and

93 = -3 + d(4) so

96 = 4d and

d = 24

Our arithmetic difference (means) is 24.  Let's test it on a few values of n.  Let's look for the second, third, and 4th terms, and then try it out for n = 5 to make sure the 5th term, using our arithmetic sequence with d = 24 works and we do, in fact, find the fifth term to be 93.

Testing n = 2

a₂ = -3 + 24(2 - 1) so

a₂ = -3 + 24(1)  and

a₂ = 21.  Second term is 21 (Notice that difference between -3 and 21 is 24)

Testing n = 3

a₃ = -3 + 24(3 - 1) so

a₃ = -3 + 24(2) and

a₃ = 48 - 3 and

a₃ = 45 (Notice the difference between 21 and 45 is 24)

Testing n = 4

a₄ = -3 + 24(4 - 1) so

a₄ = -3 + 24(3) and

a₄ = 72 - 3 and

a₄ = 69 (Notice the difference between 45 and 69 is 24)

Testing n = 5 (and it better come out as 93 or we did something wrong!)

a₅ = -3 + 24(5 - 1) and

a₅ = -3 + 24(4) so

a₅ = 96 - 3 so

a₅ = 93 (Phew!)  ; )

5 0
3 years ago
Read 2 more answers
(-5-2)x(-3) what is the answer​
fenix001 [56]

Answer:

21

Step-by-step explanation:

-5 - 2= -7

-7*-3=

<h2>21</h2>
7 0
3 years ago
Read 2 more answers
17. Solve the following:<br> x – 3y = 5<br> 5x – 2y = -1
Phantasy [73]

Answer:

(- 1, - 2 )

Step-by-step explanation:

Given the 2 equations

x - 3y = 5 → (1)

5x - 2y = - 1 → (2)

Rearrange (1) expressing x in terms of y by adding 3y to both sides

x = 5 + 3y → (3)

Substitute x = 5 + 3y in (2)

5(5 + 3y) - 2y = - 1 ← distribute left side

25 + 15y - 2y = - 1

25 + 13y = - 1 ( subtract 25 from both sides )

13y = - 26 ( divide both sides by 13 )

y = - 2

Substitute y = - 2 in (3) for corresponding value of x

x = 5 + (3 × - 2) = 5 - 6 = - 1

Solution is (- 1, - 2 )

8 0
3 years ago
Melinda has a 598-page book. If she reads 26 pages each day, how many days will it take for her to finish reading the book?
victus00 [196]

Answer:

23 days

Step-by-step explanation:

7 0
2 years ago
Which of the following is the solution of the following inequality?
Brums [2.3K]

Answer:

x = 3

Step-by-step explanation:

4 + 12.5 > 11x - 3.5 - 2x

16.5 = 5.5x

16.5/5.5 = x

5 0
2 years ago
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