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pickupchik [31]
3 years ago
8

Jodi liked to collect stamps. On 3 different days, she bought 6 stamps. Then she decided to sell 4 of them. After that she bough

t 2 sets of 5 stamps. She figured out how many she had total, and then she divided that total into 3 groups to put into stamp books. How many did she put in each book?
Mathematics
1 answer:
Musya8 [376]3 years ago
4 0

Answer:

4

Step-by-step explanation:

6-4=2

2x5=10

10+2=12

12 divided by 3=4

She put 4 in each book.

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How many servings is 22.5 ounces
guapka [62]

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7 0
3 years ago
Read 2 more answers
What is the measure for the following ∠?<br> m∠EOD<br><br> 20<br> 120<br> 140
Eddi Din [679]

Answer:

Part 1) m∠EOD=20°

Part 2) m∠AOD=80°

Step-by-step explanation:

Part 1) Find the measure of angle EOD

we know that  °

m∠EOD=m∠EOX-m∠DOX

we have

Observing the figure

m∠EOX=140°

m∠DOX=120°

substitute

m∠EOD=140°-120°=20°

Part 2) Find the measure of angle AOD

we know that  °

m∠AOD=m∠DOX-m∠AOX

we have

Observing the figure

m∠AOX=40°

m∠DOX=120°

substitute

m∠AOD=120°-40°=80°

8 0
3 years ago
Please find the square roots of the following complex number.
Nana76 [90]

Hey there,

First, find the square root of the given equation.

\sqrt{z}=\sqrt{81(\text{cos}(\frac{4\pi}{9})+i\text{sin}(\frac{4\pi}{9})}\\=9\text{cos}\frac{1}{2}(2k\pi+(\frac{4\pi}{9}))+i\text{sin}\frac{1}{2} (2k\pi+(\frac{4\pi}{9}))

Keep in mind that this is solved for k = 0 and 1.

Second, simplify.

=9\text{cos}(\frac{2\pi}{9})+i\text{sin}(\frac{2\pi}{9})~\text{or}~9\text{cos}(\frac{11\pi}{9})+i\text{sin}(\frac{11\pi}{9})

Best of Luck!

6 0
3 years ago
6 9/10 x 20/21<br> Simplify your answer completely and change to a mixed number.
Sidana [21]

Answer:

6\frac{4}{7}

Step-by-step explanation:

Hello,

I am going to start with to change to a improper fraction:

1. I will convert 6 and 9/10 into a improper fraction:

69/10

2. Now that I have converted the mixed fraction into a improper I can multiply the numerator and the denominator.

69 * 20 / 21 * 10 = 1380/210

3. Now I can simplify this value and convert it into a mixed fraction

46/7

After further simplifying I can convert this into an mixed number

6\frac{4}{7}

5 0
3 years ago
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