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Mathematics

2 answers:

Stels [109]3 years ago

6 0

Answer: x=142

Step-by-step explanation:

x+18 / 5 = 32

first multiply both sides by 5

x + 18 = 160

then subtract 18 from both sides

x=142

nirvana33 [79]3 years ago

3 0

Answer:

142

Step-by-step explanation:

$\frac{x+18}{5}=32$

Multiplying both sides by 5, you get:

x+18=160

Now, you can subtract 18 from both sides to get:

x=142

Hope this helps! Comment if this wasn't clear enough, or you need more explanation.

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Simplify y+1.2y+1.2z

Arlecino [84]

Answer:

2.2y+1.2z

Step-by-step explanation:

Add y + 1.2y

Now you can't simplify anymore so this is your answer

2.2y+1.2z

8 0

2 years ago

Write the explicit formula

Margaret [11]

Answer:

Step-by-step explanation:

Since there is no single number we can add to one number in the sequence to get to the next one, this is not arithmetic. That means it's geometric, if it's a sequence at all. To get from 2 to 6 we multiply by 3. To get from 6 to 18 we multiply by 3. To get from 18 to 54 we multiply by 3. Therefore, this is in fact geometric and the common ratio is 3. The standard form of a geometric explicit formula is

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$A_n=2(3)^{n-1$ and you can use this to find the value of any number in the sequence. Very handy; much more so than the recursive formula, which requires that all the numbers in a sequence be found in order in order to get to a desired value.