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3 years ago

Brainliest to best answer

Mathematics

1 answer:

Veronika [31]3 years ago

8 0

Answer:

B. 3x -7y < -21

Step-by-step explanation:

For this problem, a quick way to the correct answer choice is to determine on which side of the y-intercept the equation tells you the solution lies. That is ...

set x=0
divide by the coefficient of y

Doing this transforms the answer choices to ...

A: y < 3

B: y > 3

C: y > -3

D: y < -3

The graph clearly shows the solution space on the y-axis is in the region y > 3, matching choice B.

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By 3:00 pm, the temperature increased by another 5 degrees Fahrenheit was the temperature at 3:00pm positive or negative?

Ad libitum [116K]

Answer:

Part a) The temperature at noon was -3°F

Part b) The temperature at 3:00 pm was +2°F

Part c) The temperature at 11:00 pm was -6°F

Step-by-step explanation:

The complete question is

When Leo woke up he saw that the temperature was -8°F. By noon the temperature has increased 5°F. Part a) What was the temperature at noon?

Part b) By 3:00 pm, the temperature increased by another 5 degrees Fahrenheit was the temperature at 3:00 pm positive or negative?

Part c) By 11:00 pm, the temperature had dropped 8°F. Was the

temperature at 11:00 PM positive or negative? Explain.

Part a) we know that

You can use a number line to adds the numbers

-8+5=-3°F

therefore

The temperature at noon was -3°F

Part b) we know that

the temperature increased by another 5 degrees

You can use a number line to adds the numbers

-3+5=+2°F

therefore

The temperature at 3:00 pm was +2°F

Part c) we know that

the temperature had dropped 8°F

You can use a number line to adds the numbers

2-8=-6°F

therefore

The temperature at 11:00 pm was -6°F

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3 years ago

A number decreased by two is at most four or at least nine

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Answer:

Step-by-step explanation:

144/60 = 2.4

60/2.4 = x

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3 years ago

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