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3 years ago

Is this statement true or false -7 -2 > 6 - 14

Mathematics

1 answer:

exis [7]3 years ago

6 0

Answer:

false

Step-by-step explanation:

(-7-2) > (6-14)

-7-2 = -9

6-14 = -8

-9 is not > -8, because -9 is farther to the left on a number line. So, this statement would be false.

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A particular amuesment park ride will make 150 revolitions in 180 seconds at this rate how many revolutions will it make in 2 mi

ASHA 777 [7]

Answer:

100 revolitions

Step-by-step explanation:

180s = 3min

50s = 1min

50 * 2 = 100

7 0

3 years ago

Read 2 more answers

Which figure results when a triangular prism is sliced by a plane parallel to its base?

GuDViN [60]

Answer: Rectangle

Step-by-step explanation: When a geometric plane slices a prism so that the cut is parallel to the plane of the base, the cross section will have the shape of the base. So, in the case of a right rectangular prism, the cross section is a rectangle.

6 0

3 years ago

8-4 1/2??????????????????????????????????

Nikolay [14]

Answer:

$\frac{7}{2}$

Step-by-step explanation:

$4\frac{1}{2} = \frac{9}{2}$
$\frac{8}{1} = \frac{16}{2}$
$\frac{16}{2} - \frac{9}{2} = \frac{7}{2}$

I hope this helps!

3 0

3 years ago

I need help pleaseee

slava [35]

9514 1404 393

Answer:

297 miles

Step-by-step explanation:

The round-trip distance from X to Y is double the one-way distance. The distance from X to Y is 648/2 = 324 miles.

That distance is the sum of distances from X to Z and Z to Y. Then ...

XZ +ZY = XY

27 +ZY = 324

ZY = 297

It is 297 miles from City Z to City Y.

4 0

3 years ago

1. Solve the system by elimination. 2.Solve the system by substitution.

Delvig [45]

Step One

Add the first and third

-2x + 2y + 3z = 0

2x + 3y + 3z = 5

5y + 6z = 5

Step Two

Add the second and third together.

- 2x - y + z = -3

2x + 3y + 3z = 5

2y + 4z = 2 Divide this result by 2

y + 2z = 1 multiply this result by 5

5y + 10z = 5

Step three

Subtract the result of step 2 from the result of step one

5y + 10z = 5

5y + 6z = 5 Subtract

4z = 0

z = 0

Step Four

Solve for y

5y + 6z = 5 But z = 0

5y = 5

y = 1

Step Four

Solve for x . Use equation 3 in the givens.

2x + 3y + 3z = 5

2x + 3*1) + 3*0 = 5

2x = 5 - 3

2x = 2

x = 1

Answer

x = 1

y = 1

z =0 This has been checked and found to be correct.

Problem 2

Substitution is not the best way to do this. Divide the last equation by 2 and add it to the first one.

Step One

divide equation 3 by 2.

x + z = 2

Step Two

Add step one to equation 1

-x - y - z = - 8

x + z = 2

- y = - 6

y = 6

Step Three

Put this result into equation 1.

-x - 6 - z = - 8

-x - z = - 2

x + z = 2 Multiply this equation by 4

4x + 4z = 8

Step four

Put y = 7 into the second equation.

-4x + 4y + 5z = 7

-4x + 4*6 + 5z = 7

-4x + 24 + 5z = 7

-4x +5z = -17

Step 5

Add the results from Step 3 and Step 4 together.

-4x + 5z = - 17

4x + 4z = 8

9z = - 9

z = - 1

Step 6

Find x

-x - y - z = - 8

-x -6 + 1 =- 8

-x - 5 = - 8

-x = - 3

x = 3

Answers

x = 3

y = 6

z = -1 verified to be correct.

3 0

3 years ago