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makvit [3.9K]
3 years ago
10

Tolong dibantu ya! no 12 sampai 15

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
3 0
What is this language?
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A bus on a regular schedule takes 3 1/4 hours to reach its destination. The express bus takes 2 1/2 hours to make the same trip.
alisha [4.7K]
To find this answer, we should subtract 2 1/2 from 3 1/4. The simplest way to do this is to turn them into improper fractions, found the least common denominator, and subtract the numerators.

3 1/4=13/4
2 1/2=5/2

The least common multiple is 4, so we should multiply the numerator and denominator of 5/2 by 2.

5/2=10/4

Now we can just subtract the numerators.

13/4-10/4=3/4

Using the math above, we can see that it saves D. 3/4 hours.


3 0
3 years ago
Read 2 more answers
Evaluate -(3^-5)(3^3)<br> A. -9<br> B. 9<br> C. 1/9<br> D. -1/9
umka21 [38]

Answer:

D:= -1/9

Step-by-step explanation:

6 0
3 years ago
For what values of the variable are the following expressions defined?
Rom4ik [11]

Answer:

  • The Expression will be defined if the denominator is not equal to 0 since any number divided by 0 is undefined.
  • Therfore our main priority here is to check the denominator only because it's the only part that can make the expression undefined
  • the expression will be defined for all real numbers (a) BUT 3+a must not equal to 0 therfore (a) can be all real numbers but must never be equal to -3

Step-by-step explanation:

  • a \: is \: an \: element \: of \: all \: real \: numbers \: but \: not \: not \: equal \: to \:  -3
  • HOPE THIS HELPS!
3 0
2 years ago
Hello can you please help me posted picture of question
ASHA 777 [7]
The correct answer is A because a(in the equation) dictates slope and, if negative, think opposite
7 0
3 years ago
Read 2 more answers
An item is regularly priced at 29. Joe bought it at a discount of 45% off the regular price.​
Luden [163]

Answer:

$13.05

Step-by-step explanation:

The prize will be $13.05 after the discount.

29x45%=13.05

        OR

29x0.45=13.05

6 0
3 years ago
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