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nordsb [41]
3 years ago
7

When is the sum of two positive decimal numbers an integer?

Mathematics
1 answer:
Pani-rosa [81]3 years ago
8 0

Step-by-step explanation:

Rule: The sum of any integer and its opposite is equal to zero. Summary: Adding two positive integers always yields a positive sum; adding two negative integers always yields a negative sum. To find the sum of a positive and a negative integer, take the absolute value of each integer and then subtract these values.

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What is 270 divided by 6
morpeh [17]
Your answer would be 45,because 6 times 45 equals to 470,and thats how many times 6 can go into 470,exactly 45 times

8 0
4 years ago
Read 2 more answers
Mr. Taylor invests $60 000 in a bank which pays a simple interest of 4% p.a. After 9 months, he withdraws all his money. How muc
Veronika [31]

Answer:

$61800

Step-by-step explanation:

i = prt / 100

60000x4x0.75 / 100

interest is 1800

1800 + 60000 = 61800

8 0
3 years ago
Generate six Pythagorean triples using any method discussed during class. Explain each method you use.
Yuri [45]

Answer:

1) (3,4,5)

2) (6,8,10)

3) (8,15,17)

4) (10,24,26)

5) (5,12,13)

6) (33,56,65)

Step-by-step explanation:

There are many ways of generating Pythagorean triples (a,b,c), one of the easiest ones is to take two natural numbers n and m, and we will have:

a = n² - m²,

b = 2nm,

c = n² + m²

Then (a, b, c) is a Pythagorean triple.

So, we're going to generate 6 Pythagorean triples using this method.

1. m= 1 and n = 2

⇒a = 2² - 1² = 3

b =2(1)(2) = 4

c= 1² + 2² = 5

and the triple is (3,4,5)

2. Now for m = 1 and n = 3

⇒a = 3²-1² = 8

b= 2(3)(1) =6

c = 1²+3² = 10

and the triple is (6,8,10)

3. Now for m = 1 and n = 4

⇒a = 4²-1²=15

b=2(1)(4)=8

c= 4²+1²=17

And the triple is (8,15,17)

4. Now for m = 1 and n =5

⇒a = 5²-1²=24

b=2(1)(5)=10

c= 5²+1²=26

and the triple is (10,24,26)

5. m = 2 n = 3

⇒a = 3²-2²= 5

b= 2(2)(3)=12

c= 3²+2²= 13

And the triple is (5,12,13)

6. m= 4 n = 7

⇒a= 7²-4²=33

b=2(7)(4)=56

c= 4²+7²= 65

And the triple is (33,56,65)

4 0
3 years ago
Use Completing the square to solve: –3x^2 + 12x – 15 = 0
Reptile [31]

Answer:

x = 5

x = -1

Step-by-step explanation:

4 0
3 years ago
Find the value of the "?"
Andru [333]

Answer:

45

Step-by-step explanation:

Set up ratios for 2 similar triangles:

20/28=x/x+18

Cross multiply

28x=20x+360

8x=360

x=45

3 0
3 years ago
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