3 years ago

-4 is less than or equal to 2t + 5 which is less than 11

Mathematics

2 answers:

dlinn [17]3 years ago

7 0

Not sure what you’re trying to find but here’s the simplified version:

-4<=2t+5<11
-9<=2t<6
-9/2<=t<3

xz_007 [3.2K]3 years ago

5 0

Answer:

Step-by-step explanation:

-4≤2t+5<11

subtract 5 from each inequality

-4-5≤2t+5-5<11-5

-9≤2t<6

divide by 2

-9/2≤2t/2<6/2

-4.5≤t<3

or t∈ [-4.5,3)

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Answer:

The high school graduating class changed by approximately 23%

Step-by-step explanation:

we have

The high school graduating class of 2010 was 260 people

Five years later the high school graduating class was 320 people.

we know that

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Work out the answers to: a) 7 + (-4) b) (-6) + (-3) c) 2 -(-6) d) (-8) - (-13)

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Answer:

a) 7 + (-4) = 3

b) (-6) + (-3) = -9

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Step-by-step explanation:

a) 7 + (-4)

= 7 + (-4)

= 3

b) (-6) + (-3)

= -6 - 3

= -9

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= 2 + 6

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