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anygoal [31]
3 years ago
10

3 out of every 10 students ages 6 to 14 have a magazine subscription supposed are 30 students in Annabelle's class about how man

y will have a magazine subscription​
Mathematics
1 answer:
Zigmanuir [339]3 years ago
4 0

Answer: 9 students

Step-by-step explanation:

10 X 3 = 30

3 X 3 = 9 students

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3 : 93 = 1 : ? fill in the blank spot for the equivalent ratios
Oksana_A [137]

Answer:

Step-by-step explanation:

Let suppose the other number is x

3x = 93

x = 93/3 = 31

The other number is 31

3 0
3 years ago
The ratio of the measures of the angles of a triangle is 7:5:8. What is the measure of the largest angle
kifflom [539]

Answer:

72° is the largest angle, 63°, 45°

Step-by-step explanation:

7x + 5x + 8x = 180

20x = 180

20x/20 = 180/20

x = 9

I set the equation equal to 180 because there are 180 degrees in a triangle.

Now find the largest angle, which will be the 8x, since 8 is bigger than 5 and 7.

8x

8(9)

72° is the largest angle

If you need the other two angle measures:

7x

7(9)

63°

5x

5(9)

45°

3 0
2 years ago
Using disks or washers, find the volume of the solid obtained by rotating the region bounded by the curves y=x−1 y=0 x=2 and x=5
Irina-Kira [14]
Using disks ...
V= \pi \int\limits^5_2 {(x-1)^{2}} \, dx =\pi(\frac{1}{3}(5^{3}-2^{3})-(5^{2}-2^{2})+(5-2))=21\pi

The volume is 21π units³ ≈ 65.97 units³

4 0
3 years ago
Express this number in scientific notation: 22 cm.​
Tema [17]
2x 10^1 cm this will be the answer
5 0
3 years ago
Is the answer is b ? Help
PilotLPTM [1.2K]

Answer:

No, it is D.

Step-by-step explanation:

<em>It can not be A or C, because length can not be negative</em>

Because the y is the same, you only have to <em>count the distance of the x-axises</em>.

4 - (-3) is 7 units, which is D.

6 0
2 years ago
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