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katen-ka-za [31]
3 years ago
12

Which number forms a Pythagorean triple with 8 and 10? Is it 6 or 15?

Mathematics
1 answer:
Firdavs [7]3 years ago
5 0
The answer is 6. 15 triples with 9 and 12
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Solve by the elimination method
Usimov [2.4K]

There is one solution. The solution of the system is (9,-5)

Option A is correct.

Step-by-step explanation:

We need to solve the system of equations by elimination method

6x= 64+2y\\2x= -7-5y

Rearranging the equations:

6x-2y=64\,\,\,eq(1)\\2x+5y=-7\,\,\,eq(2)

Eliminating y to find value of x:

Multiply eq(1) by 5 and eq(2) by 2 and add both equations:

30x-10y=320\,\,\,\\4x+10y=-14\\--------\\34x=306\\x=\frac{306}{34}\\ x=9

So, value of x= 9

Eliminating x to find value of y:

Multiply eq(1) by 2 and eq(2) by 6 and subtract both equations:

12x-4y=128\\12x+30y=-42\\-\,\,\,\,-\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,+\\---------\\-34y=170\\y=\frac{170}{-34}\\ y=-5

So, value of y = -5

There is one solution. The solution of the system is (9,-5)

Option A is correct.

Keywords: Solving system of equations

Learn more about Solving system of equations at:

  • brainly.com/question/13168205
  • brainly.com/question/2115716
  • brainly.com/question/3739260

#learnwithBrainly

5 0
4 years ago
The girls in Lana’s troop set a goal to sell 1,000 boxes of cookies this year. There are 13 girls in the troop. At least how man
tiny-mole [99]

Answer:

77 boxes

Step-by-step explanation:

1000/13= 76.9230769

They can't sell part of a box and a little extra money never hurt any one.

4 0
3 years ago
Read 2 more answers
Find the nth term of the sequence 25 40 55 70 85
Maksim231197 [3]

Answer:

145

Step-by-step explanation:

just keep adding 15. Or there are 5 numbers in the sequence already so

9-5=4

4×15=60

85+60=145

6 0
2 years ago
Need help on this question
Harman [31]

Answer:

How to calculate the amount of sales tax?

    Convert tax percentage into a decimal by moving the decimal point two spaces to the left.

    Multiple the pre-tax value by the newly calculated decimal value in order to find the cost of the sales tax.

    Add the sales tax value to the pre-tax value to calculate the total cost.

Step-by-step explanation:

8 0
3 years ago
Preston can type 40 words per minute. if he types at that same rate, about how many words can preston type in 30 minutes?
trapecia [35]
40 x 30 = 1,200 minutes
3 0
3 years ago
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