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3 years ago

Simplify. Assume that no denominator is equal to zero. (2a/a^2) ^-3

Mathematics

1 answer:

Gnesinka [82]3 years ago

5 0

Answer:

I'm pretty sure its either A or C

Step-by-step explanation:

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Mary and Mike went to the store to buy colored pencils for their science class.mike bought a 12-pack for 1.69,and Mary bought a

sweet-ann [11.9K]

12-pack for 1.69 is a better buy

Solution:

Given that, Mike bought a 12-pack for 1.69 and Mary bought a 24-pack for 3.18

We have to find which is the better buy

First we have to find the unit rate

Unit rate is cost of 1 pack

Mike bought a 12-pack for 1.69

Therefore,

Cost of 12 pack = 1.69

Cost of 1 pack is found by dividing 1.69 by 12

$cost\ of\ 1\ pack = \frac{1.69}{12} = 0.14083$

Thus unit rate of Mike is 0.14083 dollar per pack

Mary bought a 24-pack for 3.18

Cost of 24 pack = 3.18

Cost of 1 pack is found by dividing 3.18 by 24

$cost\ of\ 1\ pack = \frac{3.18}{24} = 0.1325$

Thus unit rate of Mary is 0.1325 dollars

On comparing both the unit rate

$0.14083>0.1325$

Thus unit rate of Mike is larger

Thus, 12-pack for 1.69 is a better buy

3 0

3 years ago

WILL GIVE BRAINLIEST AND 100 POINTS

Airida [17]

Answer:

Apologiabiology Ambitious

v=vanilla

c=chocolate

4v+c=45

v+c=27

multiply 2nd equation by -1 and add to first

4v+c=45

-v-c=-27 +

3v+0c=18

3v=18

divide both sides by 3

v=6

sub bac

v+c=27

6+c=27

minus 6

c=21

21chocolate

6 vanila

Step-by-step explanation:

5 0

3 years ago

(64x^8– 4x^3 + 24) : (8x^3)

andrey2020 [161]

Answer:

(16 x^8 - x^3 + 6)/(2 x^3)

Step-by-step explanation:

Simplify the following:

(64 x^8 - 4 x^3 + 24)/(8 x^3)

Factor 4 out of 64 x^8 - 4 x^3 + 24:

(4 (16 x^8 - x^3 + 6))/(8 x^3)

4/8 = 4/(4×2) = 1/2:

Answer: (16 x^8 - x^3 + 6)/(2 x^3)

7 0

3 years ago

BRAINLIEST AND POINTS!!! PLEASE EXPLAIN

timofeeve [1]

Answer:

Option C. $\$23,134.61$

Step-by-step explanation:

we know that

$A=\frac{P[(1+r)^{n} -1]}{r(1+r)^{n}}$

we have

$P=\$400$

$r=0.075/12=0.00625$

$n=6*12=72\ months$

substitute in the formula

$A=\frac{400[(1+0.00625)^{72} -1]}{0.00625(1+0.00625)^{72}}\\ \\A=\frac{226.446972}{0.009788}\\ \\A=\$23,134.61$

4 0

3 years ago

Khloe has $460 to spend at a bicycle store for some new gear and biking outfits.

Kobotan [32]

Answer:

0 ≤ 2

Step-by-step explanation:

I just did this one and got it right

7 0

2 years ago