why is it important to write any zero in the correct place value proposition when using the break apart strategy to add?

Answers

Answer 1

Answer: If u don't it could change the value of the number

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Jeremy drew a polygon with four right angles and four sides with the same length. Name all the polygons that he could have drawn.

Answers

a square. Only a square could have 4 right angles and 4 sides the same length

How do you write 900 in expanded form

Answers

well its
900+0+0
basically
like if it was
9,234
then it would be
9000+200+30+4

900+0+0 that is the answer to this question

Express 0. 1846 as a fraction

Answers

$0.1846=(1846^((2))/(10000) =(923)/(5000)$

Answer:

1846/1000

Step-by-step explanation:

hope this helps

You are planning to make and sell three different sizes if cylindrical candles. You buy 1 cubic foot of candle wax for $20 to make 8 candles of each size. a.)design the candles. What are the dimensions of each size of candle?

b) You want to make a profit of $100. Decide on a price for each size of candle.

c) Did you set the prices so that they are proportional to the volume of each size of candle? Why or why not?

Answers

a.) Since there are no restrictions as to the dimensions of the candle except that their volumes must equal 1 cubic foot and that each must be a cylinder, we have the freedom to decide the candles' dimensions.

I decided to have the candles equal in volume. So, 1 cubic foot divided by 8 gives us 0.125 cubic foot, 216 in cubic inches.

With each candle having a volume of 216 cubic inches, I assign a radius to each: 0.5 in, 1.0 in, 1.5 in, 2.0 in, 2.5 in, 3.0 in, 3.5 in, and 4.0 in. Then, using the formula of the volume of a cylinder, which is:

V=pi(r^2)(h)

we then solve the corresponding height per candle. Let us let the value of pi be 3.14.

Hence, we will have the following heights (expressed to the nearest hundredths) for each of the radius: for

r=2.5 in: h=11.01 in
r=3.0 in: h= 7.64 in
r=3.5 in: h= 5.62 in
r=4.0 in: h= 4.30 in
r=4.5 in: h= 3.40 in
r=5.0 in: h= 2.75 in
r=5.5 in: h= 2.27 in
r=6.0 in: h= 1.91 in

b. each candle should sell for $15.00 each

($20+$100)/8=$15.00

c. yes, because the candles are priced according to the volume of wax used to make them, which in this case, is just the same for all sizes

A plane takes off at 6:00 am, traveling north at 270 miles per hour. A jet takes off at 7:00 am, traveling north at 460 miles per hour. At what time will the jet overtake the plane? (Round your answer to the nearest minute.)

Answers

Answer:

The jet will overtake the plane at 8:25 am.

Step-by-step explanation:

The distance $D_p$ traveled by the plane after time $t$ since it took off is modeled by the equation

$D_p = 270t$

And the distance $D_j$ traveled by the jet after time $t$ since the plane took off is given modeled by the equation

$D_j =460t-460$ (we set this up such that at $t=1,$ $D_j= 0$ )

Now, the jet will overtake the plane when $D_j> D_p$ :

$460t-460> 270t$

$460t-270t> 460$

$190t>460$

$\boxed{t> 2.42\: hours }$

Which is 2 hours and 25 minutes after 6:00 am, or at 8: 25 am; therefore, the jet will overtake the plane at 8:25 am.

Answer:

the answer is 8:25

Step-by-step explanation:

PLEASE ANSWER!!!!!!!!!!!!!!!!!!

Answers

The person buys a total of 20 frames.
'f' of the frames are size 4 by 6, and cost 5.8
that means 20 - f frames are size 5 by 7, and cost 9.6
And the total is 80.8

So... we get:

5.8f + (20-f)9.6 = 80.8

Answer is B

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