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3 years ago

Pls help will give brainliest and pls give explanation

Mathematics

1 answer:

Zielflug [23.3K]3 years ago

8 0

Answer:

-4, 2, 8, 14, 20

Step-by-step explanation:

The rule is called a "position to term" rule. That means the word "position" is being used to identify the location of a term in the sequence. The first term is in position 1, for example. Using the rule that the position is multiplied by 6, then 10 is subtracted, we find the terms to be as follows.

In position 1, the term is ...

1×6 -10 = -4

In position 2, the term is ...

2×6 -10 = 2

In position 3, the term is ...

3×6 -10 = 8

In position 4, the term is ...

4×6 -10 = 14

In position 5, the term is ...

5×6 -10 = 20

The first 5 terms are -4, 2, 8, 14, 20.

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If the cost of an item increased by a percentage and decreased by the same percentage, what would that percentage be if the new

Orlov [11]

The percentage, if the new cost was 84% of the original is 40%

Let the cost of the item be x.

When the price increased by y%, the new price is:

$New =x \times (1 + y\%)$

When the price decreased by the same percentage (i.e. y%), the new price is:

$New =x \times (1 + y\%) \times (1 - y\%)$

The cost is said to be 84% of the original price.

So, we have:

$x \times (1 + y\%) \times (1 - y\%) =84\% \times x$

Divide both sides by x

$(1 + y\%) \times (1 - y\%) =84\%$

Apply the difference of two squares

$1 - (y\%)^2 =84\% \\\\$

Subtract 1 from both sides of the equation

$- (y\%)^2 =-16\%$

Cancel out the common factors

$(y\%)^2 =16\%$

Take the square root of both sides

$y\% =0.4$

Multiply both sides by 100

$y =40$

Hence, the percentage is 40%

Read more about percentage change at:

brainly.com/question/809966

8 0

3 years ago

Strand A changes color every 14 seconds. Strand B changes color every 20. Both strands just changed color. After how many second

Vesna [10]

Answer:

140

Step-by-step explanation:

14, 28, 42, 56, 70, 84, 98, 112, 126, 140.

20, 40, 60, 80, 100, 120, 140.

14 x 10 = 140

20 x 7 = 140

6 0

2 years ago

The formula m = 12,000 + 12,000(0.05)t 12t gives Keri's monthly loan payment when the annual interest rate is 5% and t is the le

Paladinen [302]

Answer:

The vertical asymptote is x 0.

The horizontal asymptote is y 50.

The vertical asymptote shows there is no monthly payment for a loan of 0 years.

The horizontal asymptote shows that as the length of time for which the loan is taken out increases, the monthly payment decreases. The monthly payment approaches, but never gets to $50 a month. This is because longer loans have greater simple interest up front.

7 0

4 years ago

Read 2 more answers

Can someone help me please?

andreyandreev [35.5K]

It is B, 40/19. Tip: multiply everything by 8.

5 0

3 years ago

What number times it self 3 times equals 729

katrin2010 [14]

729 ÷ 3 = 243
so if you do 243 × 3 = 729
so your answer will be 243

3 0

3 years ago