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svetoff [14.1K]
2 years ago
10

Substitution for -3x+y=-9

Mathematics
1 answer:
shtirl [24]2 years ago
4 0

Answer:

y=3x-9

Step-by-step explanation:


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What is - 3/5 x = 15
Keith_Richards [23]

Answer:

X = 25 because 25 · 3/5, you will get 15

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3 years ago
Is -0.8 greater,less or equal to -0.3
Mrac [35]

Answer:

-0.8 is less than -0.3

Step-by-step explanation:

when dealing with decimals the closer it is to 1 the greater it is

4 0
3 years ago
Read 2 more answers
Can I get some help on this one and if you could show its done I would appreciate it. Thank you.
Andreyy89
<h3>Answer: 5.5 which is choice B</h3>

Have a look at the diagram I posted below. I marked on your image to add in another angle. This angle is also 20 degrees because of congruent alternate interior angles (horizontal lines are parallel). This angle I add in is the reference angle of the triangle

opposite the reference angle is the vertical side x

adjacent to the reference angle is the horizontal side 15

We'll use the tangent rule. Make sure your calculator is in degree mode.

tan(angle) = opposite/adjacent

tan(20) = x/15

15*tan(20) = x <<-- multiply both sides by 15

x = 15*tan(20)

x = 5.45955 <<--- use calculator; this is approximate

x = 5.5 <<--- round to one decimal place

5 0
3 years ago
Someone plz answer this o need it done
viva [34]
I believe the answer is B

please give brainliest if helped :)
4 0
2 years ago
What is the distrubite propety to factor the greatest common divider for 12+80
Olegator [25]

Answer:

First, write out the prime factorization of both 12 and 80: 12 = 2 x 2 x 3 and 80 = 2 x 2 x 2 x 2 x 5. Now collect only the prime numbers that each of them share in their factorizations, which are only two 2's. Thus, the greatest common factor between 12 and 80 is 2 x 2 = 4. Step-by-step explanation:

7 0
3 years ago
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