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Angelina_Jolie [31]
2 years ago
8

6,780,000 in scientific notation

Mathematics
2 answers:
REY [17]2 years ago
8 0

Answer:

6.78 x 10 ^ either -6 or positive 6

Step-by-step explanation:

move the decimal to make it a number between 1 and 10

klio [65]2 years ago
6 0

Answer:

105 = 100,000 x 6.78 = 678,000

Step-by-step explanation:

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Mary and Kyle together sold 225 candy bars for a fund raiser. Kyle sold twice as many candy bars as Mary.
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Answer:

Mary has 76.5, and Kyle has 178.5.

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Beatrice built about 1/3 of a sandcastle. Linda built 4/7 of the same castle. What fraction of the sandcastle did they build tog
wlad13 [49]

Answer    

Find out the what fraction of the sandcastle did they build together .

To prove

Let us assume that the fraction of the sandcastle  they build together be x .

As given

Beatrice\ built\ about\ \frac{1}{3}\ of\ a\ sandcastle.

Linda\ built\ \frac{4}{7}\ of\ the\ same\ castle.

Than the equation becomes

x = \frac{1}{3} +\frac{4}{7}

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solving

x = \frac{7 + 3\times4}{21}

x = \frac{19}{21}

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x = \frac{19}{21}

Hence proved



4 0
3 years ago
Do you know what 2/9 x 3 is?
ohaa [14]

Answer:

answer =  \frac{2}{3}

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7 0
3 years ago
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The playground of a school has areas fixed for various activities. One-fifth of the playground is used for students to sit and r
sertanlavr [38]

Answer:

2/3* 4/5 = 8/15

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  Please have a look at the attached file below.

Given:

  • One-fifth (1/5)  of the playground is used for students to sit and read
  • 2/3 is used for playing soccer
  • The rest of the playground is used for playing basketball

So assume that the the playground is divided into 5 equal part

=> 1 part is used for students to sit and read or (1/5)

=>  the remaining equal part is 4  or (4/5)

Because 2/3 of the remaining part is used for playing soccer

=> the equation represents the part of the playground used for soccer is:

2/3 of 4/5

= 2/3* 4/5

= 8/15

8 0
3 years ago
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