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blsea [12.9K]
3 years ago
11

Can someone check my answers and if their wrong explain how to get the correct answer

Mathematics
1 answer:
Charra [1.4K]3 years ago
8 0

Answer: 1. Correct, 2. Incorrect 90° angle not 80° angle answer is 50, 3. Is correct, 4. Is correct

Step-by-step explanation:

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If y=-12 when x=9, find y when x=-4<br> please answer quickly
pychu [463]

Answer: x=3

Step-by-step explanation:

to make y=-4 from -12 you have to divide by 3. so divide the 9 by 3 to get 3 which is your answer

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2 years ago
Max weighs 40 pounds less than his brother Together they weigh 280 pounds how much does his brother weight
Ierofanga [76]

Answer:

He weighs 240 pounds

Step-by-step explanation:

7 0
3 years ago
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What’s the x axis of -4x+8y=-16
balu736 [363]

Answer:

4

Step-by-step explanation:

When need to find x axis y is =0

So now you can find x

The answer of x is equally to the xaxis.

If need to find y axis then please let x =0.

4 0
3 years ago
Mrs.Johnsons new car has an 18 gallon gas tank. If she can travel 400 miles on one tank of gasoline, what is her miles per gallo
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Answer:

22

Step-by-step explanation:

400/18=22.222222222

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5 0
3 years ago
Brian and Michael are getting high speed internet access at the same time. Brian’s provider charges $60 for installation and $42
SCORPION-xisa [38]

Answer:

4 months.

Step-by-step explanation:

We can write formulas for the amount each person paid after x months. These will be

Brian = 60 + 42.95x

Michael = 0 + 57.95x

So for example, after 1 month Brian will have paid 102.95 for the installation and first month, while Michael will have paid only 57.95 (I put the zero in the equation to make it look like the familiar y-intercept form). We are trying the find the month at which they have paid equal amounts. Solve for x in the equation

60 + 42.95x = 57.95x

60 = (57.95 - 42.95)x

60 = 15x

x = 4

After four months.

5 0
3 years ago
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