Answer:
B) y = 9x - 1
Step-by-step explanation:
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Hope this helps!
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Answer:
21 inches
Step-by-step explanation:
to get from 4 to 14 you multiply by 3.5 so you multiply 6 by 3.5 to get 21
The cost of one ruler is $0.70
<h3>Applications of simultaneous equations </h3>
From the question, we are to determine the cost of one ruler
Let x represent the cost of a ruler
and
y represent the cost of a pen
From the given information, we can write that
y + x = $2.10 ----------- (1)
2y + 3x = $4.90 ----- (2)
From equation (1),
y + x = $2.10
Then,
y = $2.10 - x
Substitute this into equation (2)
2y + 3x = $4.90
2($2.10 - x) + 3x = $4.90
$4.20 - 2x + 3x = $4.90
$4.20 +x = $4.90
x = $4.90 - $4.20
x = $0.70
Hence, the cost of one ruler is $0.70
Learn more on Simultaneous equations here: brainly.com/question/26310043
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Answer:
Well figure it out yourself because you need to not fall asleep in class. It has happened to me before and I had to control myself!!
Step-by-step explanation:
Answer is 25.6 you just put the numbers and multiply them and then add them
