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Gre4nikov [31]
3 years ago
12

Andy has 9 math books and 6 reading books if he wants to distribute them evenlyamong some bookshelves so that each bookshelf has

the same combination of math and reading books with no books left over what is the greatest number of bookshelves Andy can use
Mathematics
2 answers:
Zina [86]3 years ago
6 0
Total number of books is obviously 9+6 = 15

Let m = #of math books and r=# of reading books.  Then m+r=15, where m and r are integers greater than zero.

Consider "9 math books" and "6 reading books."  The ratio of m to r is 9/6, 
or 3/2.

9 math books and 6 reading books could go on ONE shelf with no books left over.  But we wanted to determine the greatest number of bookshelves Andy could use.

TWO shelves would be inappropriate, since we'd have to divide both 9 and 6 by 2, and we'd end up with fractional books.  No good.

THREE shelves would work.  We'd have to divide both 9 and 6 by 3,
which would signify 3 math books and 2 reading books on each of THREE shelves.

Four, five and six shelves would not work.  Can you explain why?


KonstantinChe [14]3 years ago
5 0
It should be 3 bookshelves. You put 3 of the math books on each one, then two reading books on each one. Hope this helps 
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Richard’s checking account balance was $57.34 at the beginning of the week. During the week, he recorded the transactions below.
Tomtit [17]

Answer:

US$ 132.45

Step-by-step explanation:

See attachment for the missing table.

Given:

Richard’s checking account balance at the beginning of the week = $57.34

<u>Richard’s account balance at the end of the week from the given table:</u>

Deposits of the week = US$ 163.75

Expenses of the week = Groceries + Credit card bill + Gas

Expenses of the week = 25.37 + 50 + 13.27

Expenses of the week = US$ 88.64

Richard’s account balance at the end of the week = Richard’s checking account balance at the beginning of the week + Deposits of the week - Expenses of the week

Replacing with the real values:

Richard’s account balance at the end of the week = 57.34 + 163.75 - 88.64

                                                                                    =US$ 132.4

7 0
3 years ago
Read 2 more answers
Solve for each unknown
ehidna [41]
<span>6=2+u then u = 6 - 2 = 4
(-16)=(-9)-w then w = 16 - 9 = 7
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v+(-3)=(-10) then v = -10 + 3 = -7
9=j+7 then j = 9-7 = 2
(-14)=r-6 then r = -14 +6 = -8
(-2)-k=4 then k = -2 -4 = -6
(-10)=n-8 then n = -10 + 8 = -2
(-9)=s+(-4) then s = -9 + 4 = -5
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5 0
3 years ago
Is my Answers Correct? Very easy Question!
Aliun [14]

Answer:

Step-by-step explanation:

Correct

7 0
2 years ago
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3500∙(−2)∙(−5)
xeze [42]
3500*10= 35,000 the answer to the question
8 0
3 years ago
Carly and janiya put some money into their money boxes every week. the amounts of money (y), in dollars, in their money boxes af
Lelu [443]
Carly : y = 60x + 40
janiya : y = 50x + 80

60x + 40 = 50x + 80
60x - 50x = 80 - 40
10x = 40
x = 40/10
x = 4 <=== so at 4 weeks, they will have the same amount of money <==
The money they have is : y = 60(4) + 40.....y = $ 280 <=

so ur answer is : 4 weeks, $ 280
8 0
3 years ago
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