子守唄A pizza with a 14 inch diameter cost 12.99 will a 12 inch pizza cost 9.99 which pizza is a better deal?Id choose 12 in,love but not sure how to explain.

Answers

Answer 1

Answer: The 12 in pizza because if you divide the 12 bye 9.99 your answer will be greater than when you divide 14 bye 12.99

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Finley's pumpkin had a mass of 6.56.56, point, 5 kilograms (\text{kg})(kg)left parenthesis, start text, k, g, end text, right parenthesis before he carved it. After carving it, the pumpkin had a mass of 3.9\,\text{kg}3.9kg3, point, 9, start text, k, g, end text.What was the percent decrease in the mass of the pumpkin?

Answers

Answer:

40%

Step-by-step explanation:

Finley's pumpkin had a mass of 6.5 kg before he carved it.

After carving it, the pumpkin had a mass of 3.9 kg.

Now, we are asked to determine the % decrease in the mass of the pumpkin.

Therefore, the % decrease in mass is given by

$\frac{\textrm {Initial Mass - Final Mass}}{\textrm {Initial Mass}} * 100= (6.5 - 3.9)/(6.5) * 100 = 40$ %. (Answer)

Johnny wants to know how many students in his school enjoy watching science programs on TV he posted this question to all 26 students in His science class and he finds that 75% of his class and enjoyed watching science programs on TV he claims that 75% of the school student population would be expected to enjoy watching science programs on TV. Is johnny making a valid inference about this population

Answers

Yes Johhny is making a valid inference because he settled his inferences based on the votes.

Answer:

No, it is not a valid inference because his classmates do not make up a random sample of the students in the school

Step-by-step explanation:

Can someone plz help me

What is the surface area of the figure? A. 408 ft2 B. 458 ft2 C. 545 ft2 D. 720 ft2

Answers

There are 2 faces 7 x 5

$2*(5*7)=2*35=70ft^2$

There 2 faces 5 x 5

$2*(5*5)=2*25=50ft^2$

there are 3 faces 5 x 12

$4*(5*12)=4*60=240ft^2$

There are 2 faces 7 x 7

$2*(7*7)=2*49=98ft^2$

Now only we have to sum all of them together

$98+240+50+70=458ft^2$

$cuboid : \n \n l=12 \ ft , \ \ w = 5 \ ft , \ \ h= 7 \ ft \n \n A = 2wl + 2lh + 2hw \n \nA=2\cdot 5\cdot 12 + 2\cdot 12\cdot 7 + 2\cdot 7\cdot 5 = 120+ 168 +70 = 358 \ ft^2 \n \n cube: \n \n four \ side \ walls : \n \n s= 5 \ ft \n \n 4 \cdot s^2 = 4 \cdot 5^ 2 = 4*25 = 100 \ ft^2 \n \n surface \ area \ of \ the \ figure : \n \n 358 +100 = 458 \ ft^2 \n \n Answer : \ B. \ 458 ft^ 22$

What decimal part of 350 is 70

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% = rate
70/350 x 100 % = 0.2 x 100% = 20%

20 Is your answer :)

Have no idea how to do 36, please help.

Answers

Simplify the equation as best you can and then graph it. When you have graphed it, the x-coordinate when y=0 is x.

Y varies directly as x. if x =5 when y=12. find x when y=30

Answers

x = 5 ... y = 12
x = ? ... y = 30

If you would like to know the value of x when y = 30, you can calculate this using the following steps:

5 * 30 = x * 12
x * 12 =150 /12
x = 150 / 12
x = 12.5

The result is 12.5.

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Solve : 20-9x=114(2x+1)=85(2x+5)=-153(8x+1)=-21

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