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elena-s [515]
3 years ago
9

Three numbers have a sum of 82. The second number is twice the first number. The third number is 7 more than the second number.

What are the three numbers?
Also, PLEASE show your work.
Mathematics
1 answer:
iVinArrow [24]3 years ago
3 0

Answer: The number is 15

Step-by-step explanation: basically the equation you should solve is

(x)+(2x)+(2x+7)=82

5x+7=82

5x= -7+82

5x=75

5/5x=75/5

x=15

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What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x - 1)?<br> OIT MT
Alexandra [31]

Answer:

x=0

Step-by-step explanation:

To solve, we need to get all the variables on one side of the equation, and all the numbers on the other

6(x + 1) – 5x = 8 + 2(x - 1)

First, distribute the 6 on the left

6*x+6*1 -5x=8 +2(x-1)

6x+6-5x=8+2(x=1)

Combine like terms on the left

(6x-5x)+6=8+2(x-1)

x+6=8+2(x-1)

Distribute the 2 on the right

x+6=8+2*x+2*-1

x+6=8+2x-2

Combine like terms on the right

x+6=2x+(8-2)

x+6=2x+6

Subtract x from both sides

6=x+6

Subtract 6 from both sides

x=0

Hope this helps! :)

3 0
3 years ago
Which statements are always true? Check all that apply.
Ann [662]

Answer:

A rectangle has four right angles, A triangle has 3 sides, A square has 4 equal sides

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
X−7&lt;14<br><br> Options:<br><br> x&lt;7<br><br> x&gt;21<br><br> x&lt;21<br><br> x&gt;7
guajiro [1.7K]

This is a simple equation:

x - 7 < 14

x < 14 + 7

x < 21

→ Many people think that because there is not "=" sign they don't flip the sign of what in this case is -7. But actually, the symbols "<" and ">" act as the equal sign. This rule doesn't apply to positive number, only negative.


Hope it helped,


BioTeacher101


(If you have any questions, feel free to ask them in the comments)

6 0
3 years ago
Read 2 more answers
I really need help with this ?
Digiron [165]
The answer is g. 47.1

you use the formula
c= π d
then plug is 15 for d and you should get the answer
8 0
3 years ago
Select the correct answer.<br> What is the value of g(2)
Mariulka [41]

Answer:

1

answer is D

Step-by-step explanation:

we must calculate it from this equation :

x³ -9x²+27x-25 then

{2}^{3}  -( 9 \times 4 )+ (27 \times 2) - 25 =  1

4 0
2 years ago
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