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3 years ago

5x² - 27 ÷ y - (6+15) X=5 and y=9

Mathematics

1 answer:

belka [17]3 years ago

3 0

Answer:

101

Step-by-step explanation:

I think someone who is a isn't the only person to be there to a good guy is

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Cayden has several screws on a scale, and the scale reads 80.955 cayden add 1 more screw and the scale reads 84.81

My name is Ann [436]

Answer:

-3.855

Step-by-step explanation:

Not sure if you need the weight of each screw! but you just subtract 80.955-84.81

7 0

3 years ago

Read 2 more answers

there are four semi trailer trucks parked in a line at the rest stop after the first truck each truck in the line weighs 2 tons

alexira [117]

Call the weght of the first truck " $w_{1}$ ". We then know that the truck after that is 2 tons more, and the next and the next. i.e:
$w_{2} = w_{1} + 2$
$w_{3} = (w_{2} + 2) = (w_{1}+4)$
$w_{4} = (w_{3} + 2) = (w_{1}+6)$

We also know that total is 32 tons.
$w_{total} = 32 = (w_{1}) + (w_{2}) + (w_{3}) + (w_{4})$
$32 = (w_{1})+(w_{1}+2)+(w_{1}+4)+(w_{1}+6)$
$32= 4(w_{1})+12$
$20=4(w_{1})$
$w_{1} = 5 tons$

Therefore the trukcs weigh 5,7,9 and 11 tons for a total of 32 tons.

Converting to pounds, the trucks weigh 10,000, 14,0000, 18,0000 and 22,000 pounds.

3 0

3 years ago

Y - X=-5<br> y = 2x2-3x-5<br> PLEASE HELP AND SHOW WORK <br> (substitution)

nikdorinn [45]

Answer:

Step-by-step explanation:

y - x = -5

y = x-5

y = 2x² - 3x - 5

x-5 = 2x² - 3x - 5

2x² - 4x = 0

x² - 2x = 0

x(x - 2) = 0

x = 2, 0

(x,y) = (2,-3), (0,-5)

8 0

3 years ago

Which term best describes the graph of y = –2?

White raven [17]

Answer:

It would be constant.

Step-by-step explanation:

Since there is no x value, the line will have no slope and just be horizontal about y= -2.

3 0

3 years ago

-(9-15)+(-8+2)-(24-30)=

AleksAgata [21]

The answer is -6
(9-15)=-6
(-8+2)=-6
(24-30)=-6
-(-6)+(-6)-(-6)= -6

3 0

3 years ago