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Alexus [3.1K]
3 years ago
12

mrs. ciampa had 27 students in her class last year she had 30 students in her math class. what is the percent of change ?

Mathematics
1 answer:
Marizza181 [45]3 years ago
6 0
10% change? I think...

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Solve. State the number of solutions.
Oksi-84 [34.3K]

Answer:

a. x=8

b.Step 1: Simplify both sides of the equation.

2(2x−2)=4x−4

(2)(2x)+(2)(−2)=4x+−4(Distribute)

4x+−4=4x+−4

4x−4=4x−4

Step 2: Subtract 4x from both sides.

4x−4−4x=4x−4−4x

−4=−4

Step 3: Add 4 to both sides.

−4+4=−4+4

0=0

Answer:

All real numbers are solutions.

c. Step 1: Simplify both sides of the equation.

3(x+1)=4x+7−x

(3)(x)+(3)(1)=4x+7+−x(Distribute)

3x+3=4x+7+−x

3x+3=(4x+−x)+(7)(Combine Like Terms)

3x+3=3x+7

3x+3=3x+7

Step 2: Subtract 3x from both sides.

3x+3−3x=3x+7−3x

3=7

Step 3: Subtract 3 from both sides.

3−3=7−3

0=4

all credit goes to mathpapa

5 0
3 years ago
Using the technique in the model above, find the missing sides in this 30° 600-90 right triangle.longShort 7Hypotenuse3.571314
dalvyx [7]
The answer to this is 14. To find the hypotenuse from the short do 2S, and for Short to Long it is S Root 3. 

Hope this helped! Please Mark as Brainliest!
3 0
4 years ago
How many times can 4 go into 36
hammer [34]
It's very easy... just do 36/4.
36/4= 9.
4 0
3 years ago
Read 2 more answers
Answer soon please, will give brainlest.
Vinil7 [7]

Answer:

1. Range is 37,IQR is 16.5, MAD is 9

2.Range is 35,IQR is 14, MAD is 8

3. Range is 76,IQR is 37, MAD is 19.1

4. Range is 8, IQR is 4, Mad is 20.4

5. Range is 62,IQR is16 , MAD is 13.08

6. Range is 42,IQR is 23,MAD is 12

Step-by-step explanation:

mrk me brainliest plz

6 0
3 years ago
Which describes how to find the solution to 5k>22 ?
alex41 [277]
You need k by itself, so the only way to do that is to divide both sides by 5
6 0
3 years ago
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