Answer: 5
Step-by-step explanation: -2+7=5
when the signs are different you subtract and when the signs are the same you add. Then you keep the sign of the bigger number.
b) 2w (squared) -19w
d) 3w-19
The expression that represents the area of the classroom floor is 2w -19w
'A plane figure with four straight sides and four right angles, especially one with unequal adjacent sides, in contrast to a square.'
According to the given sum,
Width = w
Length = 2w - 19
Area of a rectangle = length × width
= w × (2w - 19)
= 2w ( squared ) - 19w
Hence, we can conclude that the expression that represents the area of the classroom floor is 2w (squared) - 19w.
Learn more about rectangles here: brainly.com/question/6402323
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Answer:
B
Step-by-step explanation:
The area is calculated by length×width. In this case you don't know the length or width precisely so you say 2w (squared) because it's the width×width and you subtract 19 because then you actually have width×length.
Answer:
7pm
Step-by-step explanation:
Noon means 12:00pm
Just add 3 hours to their originally 4 hour trip
(1 hour from lunch and 2 from the amusement park)
Answer:
7
Step-by-step explanation:
A.59
B.134
C.144
D.54
A. 59
The step by step explanation is above.