At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
It looks like you already multiplied everything by two in the second step and put it in parenthesis. So, the additional 2 outside would not be needed at this point.
SA = 2(15) + 2(23.25) + 2(15.25) should be what you have in step 2.
Basically step 2 should be SA = 2(15) + 2(23.25) + 2(15.25).
So all i have to do is do SA = 2(15) + 2(23.25) + 2(15.25) and get my answer?
It looked like you accidentally multiplied by 2 going to that step and didn't realize it. Otherwise it would be (30) + (46.5) + (30.5). But that would require two steps.
ok let me see what i get
That is correct. Also there is another way you could have done it which would give the same answer. Since everything is multiplied by 2, you can separate it and add everything else together.
yea i think i would have liked it better that way
SA= 2(3 ½ + 11 ½ ) + 2(11 ½ + 11 ¾ ) + 2(3 ½ + 11 ¾ ) SA = 2(3 ½ + 11 ½ + 11 ½ + 11 ¾ + 3 ½ + 11 ¾ ) SA= 2(53 ½) SA= 107
i have another question can you just explain it to me what it means?
4. What is the surface area of the box if it is scaled up by a factor of 10? its with the same question i asked before
I dont know what it wants me to do
Scaling something by a factor essentially means multiplying everything in the equation by that factor.
Since your factor is 10, you would simply multiply the Surface Area you already have by that factor (10).
107 * 10
Out of curiosity, what was the original question that brought you to your work that you originally asked about?
1. List the dimensions of your box. Be sure to include the units (in, cm, ft., etc.). 2. Describe the shape of the cross section when the box is cut parallel to the base. 3. What is the surface area of the box? 4. What is the surface area of the box if it is scaled up by a factor of 10? 5. What is the volume of the box? 6. What is the volume of the box if it is scaled down by a factor of ½?
OK, we need to back up to your original question as you set up the formula wrong.
ok ok #work lol
hehe, it happens. Did you have to pick an item to measure or was dimensions already give to you?
i had to pick it
i just chose a binder
The formula for SA is 2 ( lw + lh + hw) or 2(lw) + 2(lh) + 2(hw) where the letters besides each other mean to multiply, not add.
Sorry, I didn't think about your equation when you asked, was just making sure the math was correct.
So, you would be multiply fractions by using those measurements.
Would you like to try something different or keep with the binder?
um i already have the measurements so keep it lol
Ok, so now you would have SA= 2(3 ½ * 11 ½ ) + 2(11 ½ * 11 ¾ ) + 2(3 ½ * 11 ¾ )
SA= 2(3 ½ * 11 ½ ) + 2(11 ½ * 11 ¾ ) + 2(3 ½ * 11 ¾ ) SA= 2(40.25 ) + 2(135.125 ) + 2(41.125 )
sorry, this place is annoying with fractions. .125 would be 1/8
Now, since we are dealing with multiplying in our original equation instead of adding it changes the factor question somewhat.
how would it be different?
It is like saying SA = 2(10l * 10w) + 2(10l * 10h) + 2(10w * 10h)
essentially you are multiplying all of your measurements by 10 and changing the equation to those new measurements.
Since what really changes is you add are now multiplying by 10 * 10. So instead of 10 you would multiply your final answer by 100 instead. This part is simply a shortcut and if you are required to show your work you may have to multiply each measurement by 10 and redo the work.
SA= 2(35 + 115 ) + 2(115 + 117.5 ) + 2(35 + 117.5 )
This would be your new formula if you multiplied each side by 10.
oops, i made a mistake on that last formula, ignore it.
SA= 2(35 * 115 ) + 2(115 * 117.5 ) + 2(35 * 117.5 )
i was confused too lol ok
There, fixed. sorry, was trying to copy and paste to save time and messed up. Will be extra careful from now on.
i got a crazy number...
Should have got 43300
hmm let me check my work
ok yep now i got 43300
SA= 2(35 * 115 ) + 2(115 * 117.5 ) + 2(35 * 117.5 ) SA= 2(4025 ) + 2(13512.5 ) + 2(4112.5) SA = 8050 + 27025 + 8225 SA = 43300
The biggest thing in math is to learn your formulas. As long as you start with the right formula, chances are you will do really well.
There are so many though.
I memorize most of them but i have trouble with long ones
Usually math teachers will give you a sheet with the formulas when you take tests so it is generally ok to use one when doing homework.
Don't worry, I think we all have that problem. Trying to remember all of the formulas can be tough. It doesn't hurt to try and set up your work from memory but before you actually start doing it, go back and make sure you had the formula right.
The volume of a rectangular prism is V=bh right? i think im wrongl ol
Also, I find it helpful to right down the formula before starting the work.
Volume is in three dimensions so you would have a third measurement there. V = lhw
oh ok so it would be.... V= 11 3/4 x 11 1/2 x 3 1/2
ok so the answer to that is....
(doing the work lol)
LOL, see why i asked if you wanted to measure something else. :) Ask your teacher if it is okay to round up for future reference that way you aren't haven't to spend so much time on one problem.
i will thx lol :)
Ok, what do you think it means to scale the box down by 1/2?
Subtract by 1/2 i guess?
Not quite. like I said before, a factor is a number you multiply by. So, you would multiply each of your sides by 1/2. Or, in other words, half of your original measurements.
so half of 3.5, half of 11.5, and half of 11.75
ok that would beeee....
Hope you are ok with me doing decimals, should have asked I know your original measurements are in fractions. That doesn't confuse you, does it?
Not really i mean its the same thing
That is great that you can see that they are the same right away. That means you are doing really good in math :)
I guess lol im a 7th grader but i have 9th grade class. Algebra Honors
That doesnt mean i dont need help though lol. 1.75 5.75 5.875?
Correct, so do your Volume calculations with those new numbers and you will be good to go. And, you are right. We all need help sometimes.
ok ok the volume will be...
Eh idk about this answer V= 59.1171875
That is very close to exact. If I was you, I would just round that to 59. Also, you could probably round the last answer to 473.
Ok that would make more sense than to put the whole thing
Thank you so much for your time
Np, glad I could help.
I honestly do really appreciate it! :)