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nataly862011 [7]
3 years ago
6

Twice a number increased by 7 is 13. Find the number.​

Mathematics
1 answer:
Alborosie3 years ago
5 0

Answer:

6

Step-by-step explanation:

13-7=6

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Write the following phrase as an algebraic expression.<br><br>A number divided by 14​
Vikentia [17]

Answer:

x÷14

Step-by-step explanation:

easy dude easy this needs to be 20 characters long

3 0
3 years ago
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A photograph in a catalog has a scale of 2 in: 5 ft. A tent in the photograph is 3 inches long.
VladimirAG [237]

Answer:

7.5 ft

Step-by-step explanation:

divide 5 by 2 -- 5 ÷ 2 = 2.5

now multiply 2.5 by 3 -- 2.5 × 3 = 7.5

7 0
3 years ago
What is the equation of the line? Help me
suter [353]

Answer:

A is the answer

Step-by-step explanation:

4 0
3 years ago
The volume of a sphere
kotegsom [21]

Answer:

3 ft

Step-by-step explanation:

The volume of a sphere is given by

V = 4/3 pi r^3

36 pi = 4/3 pi r^3

Divide each side by pi

36 pi /pi= 4/3 pi r^3/pi

36  = 4/3  r^3

Multiply each side by 3/4

36 *3/4 = 3/4 *4/3 r^3

27 = r^3

Take the cube root of each side

27^ 1/3 = r^ 3 ^ 1/3

3 = r

7 0
3 years ago
The first side of a triangle is four inches longer than twice the
Galina-37 [17]

Answer:

1st Side: 27 inches, 2nd Side: 23/2, 3rd Side: 67/2

Step-by-step explanation:

Let's solve your problem step by step:

First side should be: 2x+4

Because 2 times the second side =, and 4 longer than that.

Second side should be: x

This is the base of the equation, since all the numbers depend on "x"

Third side should be: (3x+4)-5

Because x + x+4, and the third side is 5 shorter..

We add all and we get 72.

Solve for x.

x=23/2

Now, we can solve for other sides, by doubling it and adding 4.

This is answer is correct, I tried it. :)

8 0
3 years ago
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