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REY [17]
3 years ago
5

What is the solution to this equation ?

Mathematics
2 answers:
Maru [420]3 years ago
8 0
4*X-4*8+10=-10 4x-4*8+10=-10 4x-32+10=-10 4x-22=-10 4x=-10+22 4x=12 X=12\4 X=3
ioda3 years ago
3 0
4(x-8)+10=-10\\
4x-32=-20\\
4x=-20+32\\
4x=12\\
x=3. The answers is A)3.
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First lets get the formula for a triangular prism

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v =( \frac{1}{2} \times 7 \times 4)8.5

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Consider the system of linear equations.<br><br> 2y = x + 10<br><br> 3y = 3x + 15
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In Exercises 5 and 6, find each missing length.
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34. Lora is thinking of a number. It is less than 50 It is a 2-digit number. 3 is a factor of this number. The sum of its digits
-Dominant- [34]

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B

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The number is between 10 and 49

The number is divisible by 3

Let the 10s digit = x

Let the units digit = y

1/3 * (10x + y)  = x + y          multiply both sides by 3

10x + y = 3(x +y)                  remove the brackets.

10x +y = 3x + 3y                  Subtract 3x from both sides

10x - 3x + y = 3y                  Combine\

7x + y = 3y                           Subtract y from both sides.

7x = 3y - y                           Combine

7x = 2y

x can't be very big. Even taking 1/3 will get out of range is you use 6.

Also x should be an even number. The units digit cannot have a fraction in it.

Try making x = 2

7*2 = 2*y

14 = 2y                                Divide by 2

14/2 = y

y = 7

So the number is possibly 27. Let's check it out.

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  • 9 = (2 + 7)

All of the conditions are met. It's B

8 0
2 years ago
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