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4 years ago

What is the sum of -1/2 + 2/3?

Mathematics

2 answers:

alekssr [168]4 years ago

6 0

0.16666666666 is the sum of your question

satela [25.4K]4 years ago

6 0

the answer is 1/6 because you have to convert them to have a common denominator, so you would have -3/6+ 4/6

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An English teacher needs to pick 9 books to put on his reading list for the next school year, and he needs to plan the order in

Nikitich [7]

Answer: $4.37\times10^3$

Step-by-step explanation:

Given : Number of choices for novels = 4

Number of choices for plays = 6

Number of choices for poetry books = 5

Number of choices for nonfiction books = 5

Total books =4+6+5+5=20

If he wants to include all 4 novels, then the number of books left to select = 9-4=5

Remaining choices for books = 20-4=16

Number of combinations of n things taking r at a time : $\dfrac{n!}{r!(n-r)!}$

Then, the number of different reading schedules are possible :_

$^4C_4\times^{16}C_5\\\\=\dfrac{4!}{4!(4-4)!}\times\dfrac{16!}{5!(16-5)!}\\\\=(1)\times\dfrac{16\times15\times14\times13\times12\times11!}{120\times11!}\\\\=4368=4.368\times10^3\approx4.37\times10^3$

Hence, the required answer is $4.37\times10^3$ .

8 0

3 years ago

What is the measure of the major arc?

ehidna [41]

Answer:

C. 225°.

Step-by-step explanation:

1) according to the condition minor arc is 135°;

2) the measure of the major arc can be calculated as

360°-135°=225°.

5 0

2 years ago

Which number sentence is true?

konstantin123 [22]

The answer is B. 2.5+(-1.5)=1.0

5 0

3 years ago

Read 2 more answers

the distance from the earth to the sun is about 93,000,000 miles. how many pennies would it take to make a stack that high? can

oksano4ka [1.4K]

Answer:

84,480 Pennies

Step-by-step explanation:

I hope this helps!

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3 years ago

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Boxes of granola are on sale of 2 for 4. 50. There are 12 ounces of granola in each box. What is the unit price of dollars per p

guapka [62]

Answer:

$0.38

Step-by-step explanation:

Boxes of granola are on sale of 2 for 4. 50. There are 12 ounces of granola in each box. What is the unit price of dollars per pound?

4.5/12 = $0.38 per pound

The unit of each dollar per pound is $0.38

Hope this helps!

8 0

3 years ago