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GarryVolchara [31]
3 years ago
8

Solve for the variable 8x+7=-9

Mathematics
2 answers:
Vitek1552 [10]3 years ago
5 0

Answer:

Step-by-step explanation:

I've already solved this problem.

sukhopar [10]3 years ago
4 0

Answer:

x=-2

Step-by-step explanation:

first u subtract 7 on both sides resulting on 8x=-16. Then to isolate x u divide by 8 on both sides.

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a motel clerk counts his $1 and $10 bills at the end of the day. he finds that he has a total of 56 bills having a combined mone
alina1380 [7]
We can write a system of equations:

1x + 10y = 182
x + y = 56

Where 'x' is the number of $1 bills, and 'y' is the number of $10 bills.

To find this we can solve using substitution.

Re-arrange the 2nd equation:

x + y = 56

Subtract 'y' to both sides:

x = -y + 56

Now we can plug in '-y + 56' for 'x' in the first equation.

1x + 10y = 182

1(-y + 56) + 10y = 182

-y + 56 + 10y = 182

Subtract 56 to both sides:

-y + 10y = 126

Combine like terms:

9y = 126

Divide 9 to both sides:

y = 14

Now we can plug this into any of the two equations to find the 'x' value.

x + y = 56

x + 14 = 56

Subtract 14 to both sides:

x = 42

So our final answer is (42, 14).

This means that the motel clerk had 42 $1 bills, and 14 $10 bills.
7 0
3 years ago
A sequence is defined recursively using the formula f(n + 1) = -0.5f(n). If the first term of the sequence is 120, what is f(5)?
PolarNik [594]

Answer: 7.5

Step-by-step explanation:

The given formula tells us that the next term f(n+1) of the sequence is -0.5 times the previous term f(n)

First term of the sequence is f(1) = 120

Second term of the sequence is f(2) = f(1+1) = -0.5 f(1) = -0.5 (120) = -60

Third term of the sequence is f(3) = f(2+1) = -0.5 f(2) = -0.5 (-60) = 30

Fourth term of the sequence is f(4) = f(3+1) = -0.5 f(3) = -0.5 (30) = -15

Fifth term of the sequence is f(5) = f(4+1) = -0.5 f(4) = -0.5 (-15) = <em>7.5</em>

3 0
3 years ago
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The width of the rectangle is 2 while the length of the rectangle is 6
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The line segments are translated 2 units to the left to form A'B' and C'D'. Which statement describes A'B' and C'D'?
Alona [7]
I think it's ab cd
Hope this helps
7 0
3 years ago
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Which expression is equivalent to this one?
pantera1 [17]
The answer is A. It is Distributive Property I believe
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