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labwork [276]
3 years ago
10

Half a number plus 2.5 times that number equals 18. What is the number?

Mathematics
1 answer:
mixas84 [53]3 years ago
6 0
Tua madre Puttana quella troia inculata schifosa
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PLEASE HELP ME!! GIVING BRAINLIEST AND 5 STARS
Marizza181 [45]
4(x+2)=4x+8
2(x-1)=2x-2
2(x+1)=2x+2

You use disruptive property when solving equations like this.
6 0
2 years ago
True or False: The endpoints of a polygon must conform to snap points, whereas the edges of an area are not confined by snap poi
fgiga [73]

For this case, what we should know is that a polygon is a geometric figure with n sides that is closed. It is usually the union of straight lines.

On the other hand, in order to find the area of a figure, we need it to be closed.

Therefore, the edges of an area are confined by snap points.

Answer:

FALSE

3 0
3 years ago
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Can somebody help answer this right plz!!!! (Grade7math)<br> (WILL MARK BRAINLIEST) <br> Thanks :)
notka56 [123]

Answer:

396°

Step-by-step explanation:

Difference = 357 -(-39) = 357+38 = 396°

8 0
2 years ago
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There were 10 students in a teacher's classroom. The next week, there were 19 students. What is the percent increase
mixas84 [53]

Answer:

Step-by-step explanation:

7 0
2 years ago
Please help me I’m super confused on this problem!
Lorico [155]

Answer:

m < amc = 54°

Step-by-step explanation:

< amb and < bmc are complementary angles whose sum equals 90°.

Therefore, to find the value of 2x°, we must first solve for x.

We can establish the following equality statement:

< amb + < bmc = < amc

< 2x° + (x + 9)° = 90°

Combine like terms:

2x° + x° + 9° = 90°

3x° + 9° = 90°

Subtract 9 from both sides:

3x° + 9° - 9° = 90° - 9°

3x = 81°

Divide both sides by 3 to solve for x:

3x/3 = 81°/3

x = 27°.

Since x = 27°, substitute its value into 2x° to find m < amc:

2x° = 2(27°) = 54°

Therefore, m < amc = 54°

Please mark my answers as the Brainliest, if you find this helpful :)

5 0
2 years ago
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