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Rzqust [24]
3 years ago
11

X/3-5/4= -31/12what is x if you get this right I will give you brainlyand double points

Mathematics
1 answer:
IceJOKER [234]3 years ago
5 0

Answer:

x = -4

Step-by-step explanation:

\frac{x}{3} - \frac{5}{4} = \frac{-31}{12}

add 5/4 to both side

\frac{x}{3} = \frac{-31}{12} + \frac{5}{4}

use common denominator 12 to add fraction

\frac{x}{3} = \frac{-31 + 5*3}{12}

\frac{x}{3} = \frac{-31 + 15}{12}

\frac{x}{3} = \frac{-16}{12}

multiply by 3 to both sides and solve

x = -4

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The sum of two numbers is 39. the second number is 6 more than half of the first number. let a represent the firstnumber and let
sweet-ann [11.9K]

Answer:

  • a = 22
  • b = 17

Step-by-step explanation:

Givens

Let a = the first number

Let b = the second number

Equations

a + b = 39

b = 1/2 * a + 6

Put the second equation into the first one

a + 1/2 * a +   6 = 39                  Simplify the left.

(3/2)a + 6 = 39                           Subtract 6 from both sides

(3/2)a + 6 - 6 = 39 - 6                Combine

(3/2)a = 33                                  Multiply both sides by 2

3a = 33*2

3a = 66                                       Divide both sides by 3

3a/3 = 66/3

a = 22

b = 1/2 a + 6

a = 22

b = 1/2 * 22 + 6

b = 11 + 6

b = 17

Check

22 + 17 = 39

6 0
2 years ago
In terms of geometric shapes, a slice of pizza closely resembles what?
Tatiana [17]

Answer:

triangle

Step-by-step explanation:

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6 0
3 years ago
If x=(-3)to the 3rd power, write an expression that is equal to (-3)to the 6th power
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Minnie has 4 different stamps. She needs 3 to mail a large letter. How many ways can she pick the 3 that will be used?
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3 years ago
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7 · 4 = 28
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Good Luck
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