What is the surface area of 14cm 4cm and 6cm

Answers

Answer 1

Answer: The six sides would be:
2 sides of 14*4=56cm^2, 112 in total
2 sides of 4*6=24cm^2, 48 in total
2sides of 14*6=84cm^2, 168 in total
112+48+168=328cm^2

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Margie hiked a 17 7/8 mile trail.She stopped every 3 2/5 miles to take a picture.Which is the best estimate of the number of times she stopped ? A 4. B 6. C 7. D 8.

Answers

Answer:

Option B is the correct answer

Step-by-step explanation:

Margie hiked a 17 7/8 mile trail.

$\texttt{Distance hiked by Margie = }17(7)/(8)=(17* 8+7)/(8)=(143)/(8)mile$

She stopped every 3 2/5 miles to take a picture.

$\texttt{Distance at which she stopped to take picture = }3(2)/(5)=(3* 5+2)/(5)=(17)/(5)mile$

$\texttt{Number of pictures taken = }\frac{\texttt{Distance hiked by Margie}}{\texttt{Distance at which she stopped to take picture}}\n\n\texttt{Number of pictures taken = }((143)/(8))/((17)/(5))=(715)/(136)=5.28$

So she can take maximum of 6 picture and minimum of 5 picture.

Option B is the correct answer

17 7/8÷3 2/5
143/8÷17/5
multiply by reciprocal
143/8×5/17= 715/136= 5.26 which is closer to
B. 6

What is the difference between 129 and 451

Answers

One difference is that 129 starts with a '1' and 451 starts with a '4'. Also 129 ends in a '9' and 451 ends in a '1'. the middle number in 129 is '2' while in 451 it is '5' making the only two similarities in these numbers being that they both have a '1' in and that they are both hundreds.

129-451= -322 or 451-129=322

The temperature decreased from 71.5*F to 56.8*F overnight. How much did the temperature drop?

Answers

You use subtraction:
71.5*F- 56.8*F= 14.7*F
Hope this helps~

The word decreased shows that you need to use subtraction for this problem.

Take 71.5*F - 56.8*F = 14.7*F that the temperature dropped

What are equivalent fractions for one fourth

Answers

There are and infinite number of answers:
1/4 = 2/8, 3/12, 4/16, 5/20, 6/24, 7/28....

Just multiply the numerator, in this case 1, and denominator, 4, by the same number

10/40
2/8
3/12
4/16
5/20

Howto multiply 30 times 30 HELP

Answers

30=3 times 10 right so
30 times 30=3 times 10 times 3 times 10=3 times 3 times 10 times 10
we know that 3 timmes 3=9
and 10 times 10 is 100
so 30 times 30=9 times 100=900

Here is a way I was thought with zeroes, first do 3x3 which is 9 then since there are 2 zeroes you tack on 2 zeroes at the end to get 900. Hope this helped.

Write an addition expression that equivalent to 65-79. Then evaluate the expression

Answers

(30+30+5) - (70+9) = 144

65-79= -14

That being said...

-17+3= -14

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