Emanuel read 150 pages in 5 hours. how many pages would he read in 4 1/2 hours?

Answers

Answer 1

Answer: there is 10 half an hours in 5 hours

in 4 1/2 there are 9

so 150/10=15

15x9=135

Answer 2

Answer: $From\ proportion:\n\n5\ \ \ -\ \ \ 150\n4(1)/(2)\ \ -\ \ \ x\n\n5x=(9)/(2)\cdot150\n5x=675\ \ \ \ |:5\nx=135\n\nEmanuel\ would\ read\ 135\ pages.$

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Vinyl wallpaper is needed to cover 4 walls of a room. Each wall measures 12 feet by 8 feet and each bolt of wallpaper covers 72 square feet. Deduct 52 square feet for windows and the door. If the wallpaper costs $13.90 per bolt, how much will the paper cost?

Answers

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-3x-y=-17 4x + 2 y equals 20

Answers

-3x - y = -17
4x + 2y = 20

multiply one part of the equation so that we can be able to use the process of elimination.

(-3x - y = -17)2
4x + 2y = 20

Now we have:

-6x -2y = - 34
4x+2y= 20
------------------------
-2x = -14

Divide -2 on both sides.

-2x = -14
/-2       /-2

x = -7.

=============================================

To solve for y, we just have to substitute the value of x to any of the equation given above, that we feel comfortable with. And I'm going to choose this equation: 4x + 2y = 20

4x + 2y = 20

4(-7) + 2y = 20

-28 + 2y = 20

Add 28 on both sides

-28 + 2y = 20
+28          +28
---------------------
2y = 48
/2      /2

y = 24.

The last thing you would do is to check if the answers is correct.
All you have to do is plug in the values of x and y into both equations and see if they equal to one another.

You may have to do this by yourself :P

Anyways, if you have any questions about this topic, feel free to PM me or any other users interested. Thank you for being part of Brainly! Have a nice day!

What do zero pairs not do?

Answers

Answer:

They do nothing

Step-by-step explanation:

Answer:

they do nothing it zero pairs

Step-by-step explanation:

Adam builds model rockets. Where he lives , his backyard is 12 feet below sea level. When he ignites his rocket, it flies a maximum of 350 feet straight up into the air before releasing its parachute. What is the altitude of adams rocket at its highest point, as measured from sea level?

Answers

Answer:

The answer is 338 feet.

Step-by-step explanation:

Adam builds model rockets. Where he lives , his backyard is 12 feet below sea level.

The rocket flies a maximum of 350 feet straight up into the air before releasing its parachute.

So, the altitude of Adams rocket at its highest point, as measured from sea level = $350-12=338$ feet

350 _ 12= 338 ft above sea level.

A 12-sided die is rolled. The set of equally likely outcomes is {1,2,3,4,5,6,7,8,9,10,11,12}. Find the probability of rolling a number greater than 2.