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mamaluj [8]
3 years ago
8

0.2(x + 1) + 0.5x = –0.3(x – 4)

Mathematics
1 answer:
pashok25 [27]3 years ago
8 0
X=1 im pretty sure :)
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Problem 1<br> 3x + y = –14<br> -2x-y=9
Radda [10]

Answer:

x = -5 , y = 1

Step-by-step explanation:

Solve the following system:

{3 x + y = -14 | (equation 1)

-2 x - y = 9 | (equation 2)

Add 2/3 × (equation 1) to equation 2:

{3 x + y = -14 | (equation 1)

0 x - y/3 = (-1)/3 | (equation 2)

Multiply equation 2 by -3:

{3 x + y = -14 | (equation 1)

0 x+y = 1 | (equation 2)

Subtract equation 2 from equation 1:

{3 x+0 y = -15 | (equation 1)

0 x+y = 1 | (equation 2)

Divide equation 1 by 3:

{x+0 y = -5 | (equation 1)

0 x+y = 1 | (equation 2)

Collect results:

Answer: {x = -5 , y = 1

3 0
3 years ago
whitney is training to ride her bicycle in a big race. The table below shows hiw many miles she rides each day of one week​
hoa [83]

Answer: C (24.5 miles more)

Step-by-step explanation:

on Friday she rode 42.4 miles

on Tuesday she rode 17.9 miles

you just subtract Tuesday’s miles from Friday’s miles

42.4 - 17.9 = 24.5

so, C

7 0
3 years ago
Is 92% of 30 = &lt; &gt;to 48% of 75
Korvikt [17]
92% of 30 is 27.6 and 48% of 75 is 36, so 27.6<36
4 0
3 years ago
Read 2 more answers
If 17 is 10 more than half of the number what is its original number
disa [49]
I suppose its 7, subtracted


4 0
3 years ago
Read 2 more answers
3(12-8)/2*5-4 simplify or evaluate the following expressions
vekshin1

Answer:

26

Step-by-step explanation:

12-8=4

3(4)=12

12/2=6

6*5=30

30-4

26

4 0
3 years ago
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