3 years ago

Explain how you can find the opposite of the opposite of any number without using a number line

Mathematics

2 answers:

sergiy2304 [10]3 years ago

6 0

You can solve this by multiplying any negative by a negative 1 ex. -(-11) = 11

asambeis [7]3 years ago

3 0

The opposite of a number will be that number with a negative sign.

Examples:

Opposite of 5: -5
Opposite of -10: -(-10) = 10

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I need help please it’s due tomorrow.......

Sholpan [36]

Let
x-------> the width of the rectangular area
y------> the length of the rectangular area

we know that
y=x+15------> equation 1
perimeter of a rectangle=2*[x+y]
2x+2y <= 150-------> equation 2

substitute 1 in 2
2x+2*[x+15] <=150--------> 2x+2x+30 <=150----> 4x <=150-30
4x <= 120---------> x <= 30
the width of the rectangular area is at most 30 ft
y=x+15
for x=30
y=30+15------> y=45
the length of the rectangular area is at most 45 ft

see the attached figure
the solution is<span> the shaded area</span>