Answer:
Step-by-step explanation:
X and y =4 so X+y is gonna be 4 X+y+16= and 16 times 4 is 64 so the answer is 64
So 5(n+3) = 3(2n-1)
You distribute:
5n+15 = 6n-3
Subtract like terms:
-n = -18
Then divide by -1 to make the variable positive:
n = 18
5(18+3) = 3(2•18-1)
105 = 105
First, convert into a decimal:
1/10,000,000 = 0.00000001
Next, convert to "the number with a power of 10 using a negative exponent. Move the decimal point to the first <em>number that is not 0</em> (sorry, there is a term for it, but i can't remember it right now, but it is not important to solving the answer)
0.000001 = 1 * 10^-7
1 * 10^-7 is your answer
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Answer:
1. 8.4 2. 15
Step-by-step explanation:
1. 4x+8y= 40
wen y= 0.8
4x+8×0.8=40
4x=40-8×0.8
4x= 40- 6.4= 33.6
....x= 33.6/4 = 8.4
2. 3a+b= 54
wen b= 9
3a+ 9= 54
3a= 54- 9
3a=45
.....a = 45/3 = 15
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Answer:
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