2 years ago

Find the 12th term of the arithmetic sequence 2x + 8,6x + 5, 10x + 2, ...

Mathematics

1 answer:

lawyer [7]2 years ago

8 0

Answer: The 12th term is 46x -25

Step-by-step explanation:

It is increasing by 4x and decreasing by 3 through each term, this represents the d. a1 has already been identified as 2x +8, so you just have to write down the formula and the solve form there by plugging in the 12 in (n-1) to find the answer.

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9 pencils cost $7.74.Which equation would help determine the cost of 6 pencils?

Dima020 [189]

Answer:

The equation is x= (7.74 /9) 6

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given:

If 9 pencils cost $7.74, we have to divide the total cost ($7.74) by the number of pencils (9) to obtain the price of 1 pencil.

Now that we have the price of 1 pencil, to obtain the cost of 6 of them we simply multiply the result by six.

Mathematically speaking:

x= (7.74 /9) 6

Where:

x = Cost of 6 pencils in $

Solving:

x = 0.86 x 6 = $5.16

8 0

2 years ago

Read 2 more answers

Priya bought these items at the grocery store. Find each unit price.

Xelga [282]

Answer:

1 roll of toilet paper would cost $50

Step-by-step explanation:

5 0

2 years ago

Fill in the blanks to explain how Harry can check whether his solution is correct

Tresset [83]

<u><em>Answer is in bold</em></u>

Harry can first substitute 30 for t. He can then multiply $\frac{1}{3}$ by 30 to get a product of 10. Since 15 is equal to 30 × 1/2, Harry's solution is not correct.