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3 years ago

The sum of two numbers is 58. Their difference is 12. Find the numbers.

Mathematics

1 answer:

rjkz [21]3 years ago

3 0

The correct answer is 23 and 35.

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(-33.28 ÷ -5.2) ÷ -1.6 = ?

tigry1 [53]

Answer:

-4

Step-by-step explanation:

Use PEMDAS

5 0

3 years ago

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Please help!!!!!!!!!!

Sauron [17]

Answer:

I believe the first and last choice is correct.

~ hope I'm correct, if not I'm sorry~

Step-by-step explanation:

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3 years ago

Brooke has to set up 70 chairs in equal rows for the class talent show. But, there is not room for more then 20 rows. What are t

grin007 [14]

Answer:

The answer is 2, 5, 7, 10, and 14.

Step-by-step explanation:

Let x be the number of rows. There is not room for more than 20 rows:

x ≤ 20

Since all rows must be equal, when we divide 70 by x, we must get a whole number. So, we must find all divisors of 70 smaller or equal to 20 and they are: 2, 5, 7, 10, and 14.

So, the possibilities are:

2 rows with 35 chairs in each row

5 rows with 14 chairs in each row

7 rows with 10 chairs in each row

10 rows with 7 chairs in each row

14 rows with 5 chairs in each row

Hope this helps!!

~CoCo

7 0

3 years ago

Find the z score that corresponds to P67, the 67th percentile of a standard normal distribution curve

yulyashka [42]

From the z-table and at p67 or 0.67 (the decimal values in the table),

Z =0.44

See the attached photo (at the point where 0.6700 appears)

6 0

3 years ago

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By what least number should 4851 be divided to get a perfect square number ? Also find the square root of the square number so o

beks73 [17]

Answer:

The least number should 4851 be divided to get a perfect square number = 11

The square root of the obtained perfect square number is 21

Step-by-step explanation:

Given number = 4851

It can be written as

4851 = 3×1617

4851 = 3×3×539

4851 = 3×3×7×77

4851 = 3×3×7×7×11

4851 = (3×3)×(7×7)×11

It is clear that We should divide the given number by 11 then we get a perfect square number.

4851/11 = 441

441 = 21×21

=> 441 = 21²

=> √441 = √(21²)

=> √441 = 21

<h3><u>Answer:-</u></h3>

The least number should 4851 be divided to get a perfect square number = 11

The square root of the obtained perfect square number is 21

<h3><u>Used Method :-</u></h3>

→ Prime Factorization Method

6 0

3 years ago

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