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Nesterboy [21]
3 years ago
9

Please help me with these questions

Mathematics
1 answer:
kaheart [24]3 years ago
8 0

Answers:

1st pic:

a) 2

b) 2.5 or 2

2nd pic:

a) 4

b) 5

c) 9

3rd pic:

a) 5

b) 3

Note: I may not be correct on all of them. Some of them were confusing a little bit, so I just wanted to let you know. Please don't come after me in the comments if I am wrong with one of the answers. In reality, you should be doing this. Either way, I hope this helps! Please, please, PLEASE mark brainliest. I would really appreciate it. :)

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Joe drives 20 mi-in 1/2 h. how Long Will it take him to derive 50 mi?
tiny-mole [99]
An hour and 15 minutes.  Since Joe is driving 20 miles per 1/2 hour that means he is driving 40 miles every hour. We still have 10 miles left and since 20 divided by 2 is ten you would simply cut the time it takes him to drive 20 miles in half making 15 minutes. Then you add the time it takes to drive 40 miles and 10 miles and that's how you get an hour and 15 minutes. Hope this made sense!
7 0
3 years ago
Expression equivalent to 18-7
rodikova [14]

Answer:

3 + 19 - 11

Step-by-step explanation:

18 - 7 = 12

3 + 19 - 11

3 + 19 = 22

22 - 11 = 11

6 0
4 years ago
Someone please help me I am confuzzled+need the answer asap
denis-greek [22]

w = number of weeks

b(w) = number of books read after w weeks

====================================

b(w) = 12 translates to "after w weeks, Katy will have read 12 books" or put another way "Katy will have read 12 books after w weeks". The 'w' is a placeholder for some number

====================================

b(2) = 10 means "Katy has read 10 books after 2 weeks". We use the same basic idea talked about above, but we replace w with 2. At the same time, we use 10 instead of 12.

====================================

b(3) = f means "Katy has read f books after 3 weeks" or "after 3 weeks, Katy has read f books". Like w, the f is a placeholder for some number.

7 0
3 years ago
[x÷(y–1)](−4)–[xy+(−3)]÷(−1) if x=−5, y=−2
IrinaK [193]
The result is 1/3.

_____
The first attempt in the attached picture has parentheses in the wrong place for the second term. This simplifies to
.. (-5/-3)*(-4) +(10 -3)
.. = -20/3 +7
.. = -(6 2/3) +7
.. = 1/3

5 0
3 years ago
Which expression shows the result of applying the distributive property to −2(13x−15) ? 23x−25 −23x−25 23x+25 −23x+25
PIT_PIT [208]
−2(13x−15)
distribute by multiplication -2 to 13x and -15

-26x+30
4 0
4 years ago
Read 2 more answers
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