What is 4768in expanded notation as the sum of multipacation expressions using the power of 10

Mathematics

1 answer:

vova2212 [387]3 years ago

6 0

the answer is
4.7 × 10^3. .

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there are 5 cookies on a plate. Alicia eats 1 1/2 cookies stuart eats 2 1/3 cookies how many cookies are left on the plate?

MAXImum [283]

Step-by-step explanation:

Alicia eats 1 and 1/2 (Which means 1 cookie and a half of a cookie, or 0.5.)

Stuart eats 2 and 1/3 (Which means 2 cookies and one third of a cookie, or 0.3333+. Basically, 1/3 means let's say you have a pie. You cut the pie into 3 separate pieces. You eat 2 seperate pieces. You have one left. You have one out of the three, which means 1/3.)

So, you want to add both of those up.

1 + 2 = 3

1/2 + 1/3

To add fractions, you have to get the denominators (Bottom number of the fraction) equal.

So, the least common multiple (LCM) is 6.

Why? let's lay them out.

2: 2, 4, 6

3: 3, 6

These are the <u>LEAST</u> common multiple.

So, you should have

1/6 and 1/6.

Now add the amount of times you did to the numerator (Top number)

So, 1/2

2 + 2 + 2 = 6

3 times, so multiply the numerator by 3.

1 x 3 = 3

3/6

So next, 1/3.

3 + 3 = 6

2 times, so multiply the numerator by 2.

2/6.

Add them both

2/6 + 3/6 = 5/6 (Do not add denominator if they are equal)

+ 3

3 and 5/6 cookies eaten, so

5 - 3 5/6 = 1 & 1/6

1 and 1/6 cookies are left on the plate.

8 0

3 years ago

Johanna can jog 3,000 feet in 5 minutes. If she jogs at the same rate, how many feet can she jog in 8 minutes? *

olya-2409 [2.1K]

The answer is B (4,800)

Why?

Because we divide 3,500 feet by 5 and that will give us 600. Why we had to divide is because we need to find how many feet in minutes. So we do 600 times 8 and that gives us 4,800. Please mark me as branlist! Hope this helped! :)

6 0

4 years ago

If RB = 4 and OR = 3, then OB = 5 7 2√3

pogonyaev

The complete question in the attached figure

we know that

triangle OBR is a right triangle
so
<span>applying the Pythagorean theorem

</span>OB²=OR²+RB²----> OB²=3²+4²-----> 25
OB=√25-----> OB=5 units

the answer is
OB=5 units