Tracy has 40 feet of material to make the perimeter of a rectangle sandbox for her little brother what rectangle with whole number side length would give the sandbox with the greatest area?

Answers

Answer 1

Answer: I think the length should be 10 and bredth be 10. This will result into greatest area with the same perimeter.

Area = 10 * 10 = 100
Perimter = 4 * 10 = 40

Answer 2

Answer: I personally think this:

length = 10 feet

width = 10 feet

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Each part of a race is 1/10 mile marker finished 5 parts of the race how far did Marshall race

Answers

A half mile bc 1/10•5 = 5/10& thats 1/2

5/10=1/2=0.5 these are the same answer but in different for the first is the original the second is the reduced form and the third is the decimal hope this helps hope i am brainliest i need one more

What is the height, width, and length

Answers

so, let's say the length is "L".

width = 2 shorter than L = L - 2.

height = 9 more than twice L = 2L + 9.

check the picture below.

keeping in mind that the volume of a rectangular prism is simply the product of its length, width and height, and since we know the volume has to be 45.

$\bf 45=(L)(L-2)(2L+9)\implies 45=(L)(2L^2+5L-18) \n\n\n 45=2L^3+5L^2-18L\implies 0=2L^3+5L^2-18L-45 \n\n\n \stackrel{\textit{now let's do some grouping}}{0=(2L^3+5L^2)-(18L+45)}\implies \stackrel{\textit{common factor}}{0=L^2(2L+5)-9(2L+5)}$

$\bf \stackrel{\textit{again common factor}}{0=\underline{(2L+5)}(L^2-9)}\implies \stackrel{\textit{difference of squares}}{0=(2L+5)\stackrel{\downarrow }{(L^2-3^2)}} \n\n\n 0=(2L+5)(L-3)(L+3)\implies L= \begin{cases} -\cfrac{5}{2}\n[1em] \boxed{3}\n -3 \end{cases}$

from those 3 factors, we get those solutions/zeros.

we can't use -5/2, or -3, because the length can't be a negative value, so L = 3.

that means the width = 3 + 2, and the height = 2(3) +9.

Grandma slices an apple pie into ten pieces. She eats 1/5of the pie. How many slices does she eat?

Answers

That would be 2 pieces of pie as you just divided 10 by 5 and get 2 since 2 is equal to 1/5 in this problem.

2 slices of pie!
1/5 is the exact equivalent of 2/10
2. 1
/ ÷ 2 = /
10. 5

10 ejemplos grado positivo

Answers

yes you are right the answer or whatever you're trying to say is also multiplication is also the new addition and subtraction dividing is the new multiplication addition and subtraction so try doing what was best like multiplying first if that's better or dividing first if that's better

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

a bag contains 50 marbles 10 of which are blue 8 are red 20 are green and 12 are purple marcie takes a marble out of the bag records the color and returns it to the bag how many red marbles should she expect after 500 trials

Answers

80 red marbles are expected

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