yeah, they probably are because 360-130-50=180 and both of the angles look like they could be 90 degrees
Length of rectangle = 5 less than 2x width
Perimeter = 146 cm
<u>Equations we will use...</u>
w = width
(2w - 5) = length (l)
perimeter (p) = 2(l + w)
<u>Substitute equation for </u><u>length</u><u> into equation for </u><u>perimeter</u>
p = 2(l + w)
146 = 2((2w - 5) + w) [use distributive prop.]
146 = 4w - 10 + 2w [combine like terms]
146 = 6w -10 [solve for w]
156 = 6w
w = 26 cm
<u>Now substitute width back into the </u><u>equation</u><u> for length...</u>
l = 2w - 5
l = 2(26) - 5
l = 47
Double check to make sure values added up to 146 cm
w + w + l + l = 146
26 + 26 + 47 + 47 = 146
146 = 146
Therefore, the width is 26 cm and the length is 47 cm.
Answer:
D, E, C, A, and B.
Step-by-step explanation:
We wish to solve the equation:
Let’s go through this step-by-step.
1) Distributive Property:
2) Commutative Property of Addition (we rearrange them):
3) Combined Like Terms:
4) Addition Property of Equality* (we add <em>-1</em> to both sides):
5) Multiplication Property of Equality (we multiply both sides by -1):
So, our sequence is:
D, E, C, A, and B.
*A better choice would’ve been the Subtraction Property of Equality, but both are equally fine.
Answer:
the answer is ... wait this doesn't make sense. what is the question exactly asking you to do?
Step-by-step explanation:
His present age is 13 years.
<h3>How to solve words problems ?</h3>
The words problem can be solved as follows:
let
his present age = x
Therefore,
3(x + 5) = 54
Hence,
3(x + 5) = 54
3x + 15 = 54
subtract 15 from both sides
3x + 15 - 15 = 54 - 15
3x = 39
divide both sides by 3
3x / 3 = 39 / 3
x = 13
learn more on words problem here: brainly.com/question/11551965
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