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3 years ago

AHHHH HELP PLEASE, IT’S URGENT!!!!! I DON’T HAVE MUCH TIME :((( 7th Grade!!!!

Mathematics

1 answer:

salantis [7]3 years ago

4 0

Answer:

A, P, M, S, W, Q

Step-by-step explanation:

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Explain whether the product of an even number x odd number x odd number is even or odd?

Dmitriy789 [7]

Well an example is 4x3x3 which equals 36 which is even

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3 years ago

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Bill bought a new cellular phone. His monthly bill will be $34.99 each month which includes 100 minutes of use. Additional minut

GarryVolchara [31]

B) C=0.23m+34.99

because you get you base price definitely and extra minute price can be removed if you don't use more than 100

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3 years ago

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A robot moving forward at a constant speed takes 2.5 hours to travel 1 kilometer. Moving forward at this same constant speed, it

makvit [3.9K]

Answer:

The length of the hallway is 10 m.

Step-by-step explanation:

Given:

Time taken to cover 1 km = 2.5 hours

Distance covered in 2.5 hours = 1 km

Therefore, speed of robot = $\frac{\textrm{Distance}}{\textrm{TIme}}=\frac{1}{2.5}=0.4\ km/h$

Now, speed is constant.

Now, time taken to cover the length of hallway = 90 s

Speed of the robot = 0.4 km/h

Converting 0.4 km/h to m/s, we multiply by the factor $\frac{5}{18}$ . This gives,

$0.4\times \frac{5}{18}=\frac{1}{9}\ m/s$

Now, distance of the hallway is equal to the product of speed and time. So,

Distance of hallway = Speed $\times$ Time

Distance of hallway = $\frac{1}{9}\times 90=\frac{90}{9}=10\ m$

Therefore, the length of the hallway is 10 m.

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3 years ago

A flat surface continuing in all directions is a____.

Andrews [41]

I believe that a flat surface continuing in all directions is called a plane.

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3 years ago

12) Twenty cubic feet of marble can weigh 3400 pounds, plus or minus 100

andrezito [222]

Answer:

Let's suppose that one cubic foot of marble is x.

20x = 3400

But because the weight has a range of +-100, then 20x is between 3300 and 3500. Write it like this:

3300<20x<3500

Divide by 20:

165<x<175

The meaning of this is that one cubic foot of marble weight between 165 and 175 pounds

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3 years ago