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TEA [102]
3 years ago
7

Solve the following equations. Note that the solutions should be given as fraction.

Mathematics
2 answers:
zzz [600]3 years ago
5 0

Answer:

80/3

Step-by-step explanation:

7 = (3x + 4)/12

84 = 3x + 4

84 - 4 =3x

80/3 = x

x = 80/3

arsen [322]3 years ago
3 0

Answer:

80/3 or 26 2/3

Step-by-step explanation:

:) hope this is correct

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3 0
4 years ago
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How many solutions does the system have?<br> 3x + 2y = 7<br> y = -3x + 11
ella [17]

Answer:

1 Solution.

Step-by-step

The answer is (5, -4) or x= 5, y= -4 making this system have 1 solution.

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6 0
3 years ago
14 ounces of olive oil for $3.59
Kamila [148]
25. 6 cents for each ounce
5 0
4 years ago
Which ordered pair is the solution to the system of linear equations y=5x+8 and y= -4x-1​
serious [3.7K]

Answer:

(-1, 3)

Step-by-step explanation:

y=5x+8

y= -4x-1

5x+8= -4x-1

5x+4x= -1-8

9x= -9

x= -1

y=5(-1)+8

y= -5+8

y= 3

(-1, 3)

8 0
3 years ago
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A neighborhood was given a vacant lot in the shape of a rectangle on which to build a park. The neighborhood is considering how
Montano1993 [528]

Answer:

<em>The triangle and trapezoid area formulas have One-half in them.</em>

<em>In the trapezoid formula, the bases are added.</em>

Step-by-step explanation:

<em>Topic: Plane Shapes</em>

Basically, the requirement of the question is to compare area of shapes. The shapes are

  1. Trapezoid
  2. Triangle
  3. Parallelogram
  4. Rectangle

The Area of a Trapezoid is (\frac{a + b}{2} )h where a and b are the bases of the trapezoid and h is the height

The Area of a Triangle is \frac{bh}{2} where b and h are the base and the height of the triangle respectively

The Area of a Parallelogram is b * h where b and h are the bases and the height of the parallelogram

The Area of a Rectangle is l * b where l and b are the length and the breadth of the triangle respectively

Checking option a through e

A. The triangle and trapezoid area formulas have One-half in them.

True; Area of a Triangle is \frac{bh}{2} while Area of a Trapezoid is (\frac{a + b}{2} )h

B. The parallelogram and rectangle formulas are both the same.

False; Area of a Parallelogram is b * h while Area of a Rectangle is l * b

C. In the parallelogram formula, the bases are added.

False; The basis are not added

Area of a Parallelogram is b * h

D. In the trapezoid formula, the bases are added.

True; Area of a Trapezoid is (\frac{a + b}{2} )h

E. In the triangle formula, the sides are added, then multiplied by One-half.

False; Area of a Triangle is \frac{bh}{2}

4 0
4 years ago
Read 2 more answers
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