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UkoKoshka [18]
4 years ago
14

ALGEBRA NEED HELP /:

Mathematics
1 answer:
Pavel [41]4 years ago
7 0

Answer:

b. -3

Step-by-step explanation:

Cross multiply

5x = 3(x - 2)

Distributive property

5x = 3x - 6

Subtract 3x from both sides

2x = -6

Divide both sides by 2

x = -3

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(geometry) please look at attached image and help me with this question!
julsineya [31]

Answer:

  m∠AEC = 139°

Step-by-step explanation:

To make the equations easier to write, let's say all measures are in degrees, and define ...

  p = m∠AEB = 11x -12

  q = m∠CED = m∠CEB = 4x +1

Then ...

  p + 2q = 180

  (11x -12) + 2(4x +1) = 180

  19x -10 = 180 . . . . . . . . . . . . collect terms

  19x = 190 . . . . . . . . add 10

  x = 10 . . . . . . . . . . . divide by 19

  p = 11x -12 = 110 -12 = 98

  q = 40 +1 = 41

The angle of interest is ...

  m∠AEC = p +q = 98 +41

  m∠AEC = 139 . . . . degrees

8 0
3 years ago
18, 19, 20, 20, 23, 26, 260
PSYCHO15rus [73]

Answer:

Median

Step-by-step explanation:

This set of data has an extreme outlier, which will throw off the mean. The median, on the other hand, does not change or changes minimally whether or not the outlier is there.

By default, the mean is always better, but if an outlier, such as this one, is too large, the median is better.

4 0
3 years ago
What -4 times 7 on a number line
Julli [10]

Answer:

-28

Step-by-step explanation:

-4(7)=-28

6 0
3 years ago
Is 98% of what you learn a waste
nevsk [136]

Answer:

My opinion:

I'll say 70 percent, bc we do learn English or whatever language you're learning all along to communicate, yes a big factor in our lives, basic math helps with logic and solving problems irl but advanced math helps with a career that has to do with math. same with science and history but I believe as long as you know general knowledge you will do fine

5 0
4 years ago
Read 2 more answers
PLEASE HELPPPPP WILL GIVE BRAINLIEST
FinnZ [79.3K]

Answer:

the value of the variable x is 16

Step-by-step explanation:

given \: expression \\  \frac{5}{8}x =  \frac{1}{2} x + 2 \\ substract \: \frac{1}{2} x from \: both \: sides \\ \frac{5}{8}x  - \frac{1}{2} x = \frac{1}{2} x  - \frac{1}{2} x  + 2 - \frac{1}{2} x  \\ factor \: out \: common \: x \\ x( \frac{5}{8}  -  \frac{1}{2} ) =  \frac{1}{8}  \\ simplify \\ \frac{1}{2} x  + 2 - \frac{1}{2} x \:  \frac{1}{2} x -  \frac{1}{2} x = 0 = 2 \\  \frac{1}{8} x = 2 \\ multiply \: both \: sides \: by \: 8 \\ 8. \frac{1}{8} x = 2.8 \\ simplify \\ x = 16.

6 0
2 years ago
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