2 years ago

Rewrite 1/b-2=3b/b+2

Mathematics

1 answer:

Brums [2.3K]2 years ago

5 0

Answer:

b=6,1

BRAINLIST PLEASE!

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Which fraction would make this equation true 5×?=6 1/4

Blizzard [7]

The answer is 1 1/4.

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3 years ago

A laptop computer originally priced at $1,000 now sells for $1,300. What is the percent of increase?

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2 years ago

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Suddenly, the number of problems the mathletes have to solve increases by 60%! To keep on track, the mathletes try to go faster

sesenic [268]

Answer:

28%

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3 years ago

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a sequence starts a 200 and 30 is subtracted each time 200,170,140 what are the first two numbers in the sequence that are kess

Snowcat [4.5K]

<h3>Answer: -10 and -40</h3>

===============================================================

Explanation:

a = 200 = first term

d = -30 = common difference

Tn = nth term

Tn = a + d(n-1)

Tn = 200 + (-30)(n-1)

Tn = 200 - 30n + 30

Tn = -30n + 230

Set Tn less than 0 and isolate n

Tn < 0

-30n + 230 < 0

230 < 30n

30n > 230

n > 230/30

n > 7.667 approximately

Rounding up to the nearest whole number gets us $n \ge 8$

So Tn starts to turn negative when n = 8

We can see that,

Tn = -30n + 230

T7 = -30*7 + 230

T7 = 20

and

Tn = -30n + 230

T8 = -30*8 + 230

T8 = -10 is the 8th term

and lastly

Tn = -30n + 230

T9 = -30*9 + 230

T9 = -40 is the ninth term

Or once you determine that T7 = 20, you subtract 30 from it to get 20-30 = -10 which is the value of T8. Then T9 = -40 because -10-30 = -40.

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3 years ago

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Factor: 64v^4 - 225w^10

love history [14]

Answer:

( $8v^2-15w^5)(8v^2+15w^5)$

Step-by-step explanation:

STEP 1:

$8^{2}$ $v^{2*2}$ - $15^{2}$ $w^{2*5}$

STEP 2:

$8^{2}$ * $(v^{2})^{2}$ - $15^{2} * (w^{5})^{2}$

STEP 3:

$(8v^2)^2 - (15w^5)^2$

STEP 4:

( $8v^2-15w^5)(8v^2+15w^5)$

6 0

3 years ago