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sergij07 [2.7K]
3 years ago
13

-1=-3r+2r How can you write the steps to this problem?

Mathematics
1 answer:
Nesterboy [21]3 years ago
8 0

Answer:

r=1

Step-by-step explanation:

-1=-3r+2r

combine the similar variables:

-1=-1r

Isolate the variable by dividing by the reciprocal:

1=r or r=1

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a carpet store charges 150 to install 12 square yards of carpet how much would it be for 24 square yards
ivanzaharov [21]

Answer:

$300

Step-by-step explanation:

  1. 150/12 to figure out how much to install one yard ($12.50)
  2. 24•12.50=300
4 0
3 years ago
How do I delete my questions?
pishuonlain [190]
Email them ..they will help you

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3 0
2 years ago
NEED HELP ASAP PLEASE WITH #9 and #10!!
ICE Princess25 [194]
9) Because the total number of pencils is 180 and you will use them up in 30 days, the equation will have to equal 0 total pencils when 30 is substituted in for the time factor, or x. This already takes our choice 3 because it doesn’t meet this criteria.
The answer to how many pencils in 20 days could be answered by plugging in 20 for x. Choice 4 cannot work because it results in a negative number of pencils. Choices 1 and 2 use the same equation, so by plugging in 20 it is clear choice 2 is the correct answer.

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8 0
3 years ago
Select the ordered pairs that are solutions to the inequality 2x-3y greater than or equal to 12
Dima020 [189]
Just rank every pair of numbers for example:
The first one is: 1,-3.
2•1-3•-3>12
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11>12
That's Incorrect. The first pair of numbers doesn't match the inequality.
Now do the same thing to all the other pairs of numbers.
3 0
3 years ago
Read 2 more answers
3 x 2 1/2= ?????????????????/<br> Welp
igor_vitrenko [27]

Answer:15/2

Step-by-step explanation:

3 0
3 years ago
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