What is (4-5a)^2 - a (2a -3)

Answers

Answer 1

Answer: 23a²+-37a+16 is the answer

Answer 2

Answer: 3a^2+13 should be correct

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At one time during 2001 for every 20 copies of Harry Potter and the Sorcerer's Stone that were sold 13.2 copies of Harry Potter and the Prisoner of Azkaban were sold express the ratio of copies of the Prisoner of Azkaban sold two copies of the Sorcerer's Stone sold as a percent

Answers

In order to solve this, you have to take the number of copies of the Prisoner of Azkaban and divide it by the number of copies of the Sorcerer's Stone:
13.2÷20=0.66
To get this into a percentage, multiply the 0.66 by 100, and get 66%, meaning that The Prisoner of Azkaban was sold only 66% as much as The Sorcerer's Stone.

The ratio of black beans to sweet peas in the garden was 12 to 5. What was the ratio ofsweet peas to black beans?

Answers

5 to 12. All you do is switch the ratios around.

Answer:

The answer is 5 to 12. With this kind of problem all you need to do is make the numbers switch places. So it is 5 to 12, not 12 to 5. Hope this helped! :) (Btw, I am in Middle school lol. Why are u doing this in High School XD)

Step-by-step explanation:

Which numbers belong to the solution set of inequality 9x>117

Answers

Hello Nancy

9x>117

Divide both sides by 9

9x/9>117/9

x>13

I hope that's help:0

If a car travels 400m in 20 seconds how fast is it going

Answers

Answer:

20 m/s

Step-by-step explanation:

Distance = rate * time

400 m = rate * 20 seconds

Divide each side by 20 seconds

400m/ 20 seconds = rate

20 m/second = rate

PLS HELP 30 POINTS+BRAINLIEST!!The __________ is the layer of the atmosphere nearest to Earth's surface.
A. exosphere
B. troposphere
C. stratosphere
D. mesosphere

The __________ contains the highest concentration of ozone.
A. exosphere
B. troposphere
C. stratosphere
D. mesosphere

The _________ protects the earth from meteoroids.
A. exosphere
B. troposphere
C. stratosphere
D. mesosphere

The _________ layer is the coldest layer in the atmosphere.
A. exosphere
B. troposphere
C. stratosphere
D. mesosphere

Most weather occurs in the _________.
A. exosphere
B. troposphere
C. stratosphere
D. mesosphere
The __________ the atmospheric layer farthest from Earth.
A. exosphere
B. troposphere
C. stratosphere
D. mesosphere

Answers

B: Troposphere
C: Stratosphere
D: Mesosphere
D: Mesosphere
B: Troposphere
A: Exosphere

what percent of a) Rs 80 is Rs 20 ? please give answer step by step and clearly please it's urgent

Answers

Answer:

16%

Step-by-step explanation:

80/100x 20/1 = 1600/100 cut0 n d16%a

i think its 16 percent

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