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Alex Ar [27]
3 years ago
11

Four times a number, decreased by eight equals twelve. What is the number?

Mathematics
1 answer:
AleksandrR [38]3 years ago
6 0

Let the number be x.

4x - 8 =12

4x =12 +8 ( you bring the eight over to the 12, it becomes positive )

4x = 20

x = 20÷4

x = 5

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What is the solution set of negative X equals -8
inessss [21]

Answer:

8

Step-by-step explanation:

the unknown can NEVER be negative

so you wont see an answer like

-b= 7, -a=98; -k= -9

so,

-x= -8 (change their positions so that the unknown, x, is positive)

x=8

7 0
4 years ago
Which table represents the function y = 3 x – 1?
Katena32 [7]

Answer:

the first set of values is correct

Step-by-step explanation:

when x =0,

y = 3(0) -1

y=-1

when x =1,

y=3(1)-1

y=2

when x=2,

y=3(2)-1

y=5

7 0
3 years ago
Find the values of x y and z
andrey2020 [161]

9514 1404 393

Answer:

  • x = 18√2
  • y = 18√3
  • z = 36

Step-by-step explanation:

These "special" right triangles have side length ratios that it is useful to remember.

<u>45°-45°-90° triangle</u>

Sides have the ratios 1 : 1 : √2. That is, x is √2 times as long as the side length shown as 18.

  x = 18√2

<u>30°-60°-90° triangle</u>

Shortest to longest, sides have the ratios ...

  1 : √3 : 2

That is, y is √3 times the length of the side marked 18, and z is 2 times the length of the side marked 18.

  y = 18√3

  z = 2·18 = 36

4 0
3 years ago
Orange traffic cones come in a variety of sizes. Approximate the volume, in cubic inches, of a traffic cone that has a height of
Irina18 [472]

Answer:

Volume of the cone = 628 cubic inches.

Step-by-step explanation:

Given:

Height of the traffic cone, h = 2 feet = 24 inches        ...[1 feet =12 inches]

Diameter of the cone, d = 10 inches

Radius of the cone, r = 5 inches                                  ...[r=\frac{d}{2}]

Value of pie, \pi = 3.14

We have to find the approximate volume.

Lets say that the volume is V .

Formula:

Volume of a cone = \frac{\pi r^2h}{3}

So,

⇒ V=\frac{\pi r^2h}{3}

⇒ Plugging the values.

⇒ V=\frac{3.14\times 5^2\times 24}{3}

⇒ V=\frac{3.14\times 25\times 24}{3}

⇒ V=628  inches^3

The volume of the orange traffic cone is 628 inches^3.

8 0
3 years ago
Round to the nearest ten thousand 103,075,067
vodka [1.7K]

The number in the ten thousands place is 7

Look at the number in the place value next to it. It is a 5. Note that numbers 5 and greater round up, while 4 and lower round down.

103,080,000 is your answer

hope this helps

6 0
3 years ago
Read 2 more answers
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