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lara31 [8.8K]
3 years ago
11

The difference of two numbers is 20, and the difference of their squares is 800. What is the sum of the two

Mathematics
2 answers:
irakobra [83]3 years ago
8 0

Answer:

The sum of the 2 numbers is 40.

Step-by-step explanation:

x - y = 20

x^2 - y^2 = 800

x^2 - y^2 = (x - y)(x + y)  so:

800 = 20(x + y)

x + y = 800/20

so x + y = 40

Katarina [22]3 years ago
6 0
40 is your answer! let me know if you need more help!
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Answer:

k Nishant

Step-by-step explanation:

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8 0
4 years ago
Please help
nikdorinn [45]

Answer:

D

Step-by-step explanation:

given

V = \frac{1}{3} bh

multiply both sides by 3 to eliminate the fraction

3V = bh ( divide both sides by h )

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5 0
4 years ago
Solve the equation for the variable. Show all work. 14 x – 21 = 49
Lubov Fominskaja [6]

x=5

14x5= 70

70-21=49

this is how I got the answer




8 0
3 years ago
Read 2 more answers
A series consists of some numbers such that the summation of the divisors of any number of that series is 1 less than twice of t
dezoksy [38]

Answer:

The 9th term is 17179869184

Step-by-step explanation:

Here we have that;

The divisors of 1 = 1 which is 1 less than 1*2

The sum of the divisors of 2 = 1 + 2  = 3 which is 1 less than 2*2

The sum of the divisors of 4 = 1 + 2 + 4 which is 1 less than 4*2

The sum of the divisors of 8 = 1 + 2 + 4 + 8 which is 1 less than 8*2

The sum of the divisors of 32 = 1 + 2 + 4 + 8 + 16 + 32 which is 1 less than 32*2

The sum of the divisors of 256 = 1 + 2 + 4 + 8 + 16 + 32 + 64 + 128 + 256 which is 1 less than

The next numbers are therefore,

32 × 256 = 8192

256 × 8192 = 2097152 and the 9th term is therefore;

8192 × 2097152 = 17179869184.

4 0
3 years ago
How many tiles that are each 14-3/8 inches in length can be cut from a larger piece of tile that is 100-5/8 inches long?
Dvinal [7]
(100 5/8) / (14 3/8)
(805 / 8) / (115/8) =
805/8 * 8 / 115 =
805 / 115 =
7 <===
6 0
3 years ago
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