Answer:
x = 2
y = -3
Step-by-step explanation:
Solve by substitution:
2x - y = 7
Move the 2x to the other side: -y = 7 - 2x
Divide by -1: y = -7 + 2x
Take the other equation: 3x + y = 3
Substitute y in: 3x + (-7 + 2x) = 3
Take out the parenthesis: 3x - 7 + 2x = 3
Move -7 to the other side: 3x + 2x = 3 + 7
Simplify: 5x = 10
x = 2
Take the first equation: 2x - y = 7
Substitute x back in: 2(2) - y = 7
Simplify: 4 - y = 7
-y = 3
y = -3
Answer:
10%
Step-by-step explanation:
$179.99+$20=$199.99
$20/$199.99=0.1000
=10%
The surface area of the rectangular prism is 427 mm². The correct option is the second option 427 mm²
<h3>Calculating surface area</h3>
From the question, we are to calculate the surface area of the rectangular prism
Surface area of a rectangular prism can be calculated by using the formula,
Surface area = 2(lw + lh + wh)
Where l is the length
w is the width
and h is the height
In the given diagram,
l = 21.5 mm
w = 4 mm
h = 5 mm
Putting the parameters into the equation, we get
Surface area = 2(21.5×4 + 21.5×5 + 4×5)
Surface area = 2(86 + 107.5 + 20)
Surface area = 2 × 213.5
Surface area = 427 mm²
Hence, the surface area of the rectangular prism is 427 mm². The correct option is the second option 427 mm²
Learn more on Surface area here: brainly.com/question/1310421
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Answer:
Step-by-step explanation:
Terms are separated by addition or subtraction in an expression. Recall that a monomial is a single term, a binomial has two terms, a trinomial has three terms and a polynomial has many tearms
Answer:
there is a cluster from 1-4
there is a gap from 5-7
The spread is from 1-8
Step-by-step explanation:
These are all true if you look... there is a bunch from 1-4, there is none from 5-7, and all of them are within 1-8, but the highest amount isn't at 3.
