Which of the following situations can be modeled by the equation n+0.50n-0.3n =1.2n, where n is the # of nickels originally in the jar?a. Amanda takes out 50% of the nickels in the jar on Friday and adds a number of nickels that is equal to 30% of the remaining number of nickels in the jar on Monday. There are 20% fewer nickels in the jar after Monday than before Friday.

b. Amanda takes out 50% of the nickels in the jar on Friday and adds a number of nickels that is equal to 30% of the original number of nickels in the jar on Monday. There are 20% fewer nickels in the jar after Monday than before Friday.

c. Amanda adds 50% of the original number of nickels to the jar on Friday. The number of nickels Amanda takes out on Monday is equal to 30% of the new number of nickels. There are 20% more nickels in the jar after Monday than before Friday.

d. Amanda adds 50% of the original number of nickels to the jar on Friday. The number of nickels Amanda takes out on Monday is equal to 30% of the original number of nickels. There are 20% more nickels in the jar after Monday than before Friday.

Answers

Answer 1

Answer: C. because n would equal 1 then add 50% or .5 then take 30% or.3 equaling 1.2

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Answers

After 8 days, he has spent $\$8\cdot1.5=\$12$ . Half his starting money would be $\frac{\$30}2=\$15$ . Hence, he has spent less than half his starting money.

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If A and B are in a ration a:b then for each a of A there are b of B.

Hence for each 4 soccer players there is 1 volleyball player.
The number of soccer players is 4 times the number of volleyball players (the top left answer is correct).
If there are 4 volleyball players, there are thus 4*4=16 soccer players (and not 12)

If there are 16 soccer players, there are then 16/4=4 volleyball players, thus a total of 20 players: the third answer (bottom left) is wrong

Please help please please

Answers

Answer:

$36\pi$

Step-by-step explanation:

Since the radius of a circle is half of the diameter, the radius of this one is 12/2=6 feet. The formula for the area of a circle is $\pi r^2$ , which in this case is $\pi \cdot 6^2=36\pi$ . Hope this helps!

Answer:

36π

Step-by-step explanation:

A = π $r^(2)$

= π $(6)^(2)$

= π x 36

= 36π

Please mark as Brainliest

Two rectangular prisms have the same volume. The area of the base of the blueprism is 2 square units. The area of the base of the red prism is one third that
of the blue prism. Which statement is true?

a)The height of the red prism is one-third the height of the blue prism.
b)The height of the red prism is the same as the height of the blue prism.
c)The height of the red prism is six times the height of the blue prism.
d)The height of the red prism is three times the height of the blue prism.

Answers

Answer:

d) the height of red prism is three times the height of the blue prism.

Step-by-step explanation:

i) the volume of a rectangular prism is given by area of base $*$ height.

ii) volume of the blue prism is = (base of blue prism) $*$ (height of blue prism)

iii) volume of red prism is = (base of red prism) $*$ ( height of the red prism)

= $(1)/(3)$ $*$ ( base of blue prism) $\height$ $*$ ( height of red prism)

iv) it is also given that

volume of blue prism = volume of red prism

⇒ (base of blue prism) $*$ (height of blue prism) = (base of red prism) $*$ (height of red prism)

⇒(base of blue prism) $*$ (height of blue prism) = $(1)/(3)$ $*$ ( base of blue prism) $*$ (height of red prism)

⇒ (height of blue prism) = $(1)/(3)$ $*$ (height of red prism)

∴ height of red prism = 3 $*$ height of blue prism

Therefore the correct option is

d) the height of red prism is three times the height of the blue prism.

Brainliest answer to who ever answers this first. What is the slope, and what is the y-intercept of the line?
y=2/3x-4
slope=
y-intercept=

Answers

slope = 2/3
y-intercept = 4

Ingrit is buying a $97 coat. It is on sale for 30% off. What is the sale price of the coat?

Answers

Answer:

67.9 U.S. dollars

Step-by-step explanation:

Answer: 67.90 dollars

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

Work Shown:

30% = 30/100 = 0.30

Take 30% of 97 to get 0.30*97 = 29.10

So Ingrit saves $29.10

The sale price is 97.00 - 29.10 = 67.90

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Here's another way to get the answer:

The discount is 30% which means she saves 30% and pays the remaining 70% (since 30% + 70% = 100%)

70% = 70/100 = 0.70

Take 70% of the original price and you'll get the sale price

0.70*97 = 67.90

What fraction of the months of the year have 31 days?

Answers

there is 7 months so it would be 7/31 idk

7/31 that's the answer.

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