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2 years ago

Julio believes that the quotient of 6 ÷ 1/2 = 3

Mathematics

2 answers:

Hitman42 [59]2 years ago

5 0

Answer:

Julio did 6/2. The correct answer is 12.

Step-by-step explanation:

6/1/2=6*2=12. Julio forgot to change the division into multiplication. Dividing is multiplying by it's reciprocal.

aleksley [76]2 years ago

3 0

Answer:

She was wrong because if you were to find the quotient it would be 2 because if it were to be 3 it'll look like 6 divided by 18= 3. so what she has to do is find what times 6 equals 2 and that'll be 6 divided by 12= 2

Step-by-step explanation:

i got it right on edg 2020

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Tim must read 2 books from a list of 7 recommended books for his summer reading program. In how many different ways can Tim choo

Marianna [84]

There are 21 ways Tim choose 2 books from the 7 recommended book

Solution:

Given that Tim must read 2 books from a list of 7 recommended books for his summer reading program

To find: different ways can Tim choose 2 books from the 7 recommended books

This is a combination problem

A combination is a selection of all or part of a set of objects, without regard to the order in which objects are selected

The formula for combinations is:

$n C_{r}=\frac{n !}{r !(n-r) !}$

where n represents the number of items, and r represents the number of items being chosen at a time

Here we have to choose 2 books from 7 books

Therefore, n = 7 and r = 2

Substituting values in above formula, we get

$\begin{aligned}&7 C_{2}=\frac{7 !}{2 !(7-2) !}\\\\&7 C_{2}=\frac{7 !}{2 ! \times 5 !}\end{aligned}$

For a number n, the factorial of n can be written as,

$n !=n \times(n-1) \times(n-2) \dots \dots \times 2 \times 1$

Therefore, we get

$7 C_{2}=\frac{7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1}{2 \times 1 \times 5 \times 4 \times 3 \times 2 \times 1}\\\\7C_2 = 7 \times 3 = 21$

Thus there are 21 ways Tim choose 2 books from the 7 recommended book

7 0

3 years ago

The 7th grade had a book drive. They donated 2/3 of the books to the st James school. Then donated 1/4 of the remaining books to

sergiy2304 [10]

Answer: 192 books

Step-by-step explanation:

2/3 + 1/4 = 11/12

16 remaining books = 1/12

16 x 11 = 176

176 + 16=192

7 0

3 years ago

Read 2 more answers

This one is a bit hard so i need help with this.

Rainbow [258]

Answer:

1440 ft squared

Step-by-step explanation:

v = lwh (length times with time height)

Hope this helps Buddy!

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3 0

3 years ago

How do you solve this?

Hatshy [7]

Answer:

y = -3/2x + 5/2

Step-by-step explanation:

Point: (5, -5)

Parallel to: y = -3/2x + 2

Slope= -3/2 (parallel lines have the same slope)

y-intercept = -5 - (-3/2)(5) (y - slope times x) =

-5 + 15/2 = 5/2

8 0

3 years ago

6r-r+8(15-r)+23-6 solve

lys-0071 [83]

Your answer is -3r + 137

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4 0

3 years ago

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