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dybincka [34]
3 years ago
13

WILL GIVE BRAINLIEST IF YOU HELP

Mathematics
1 answer:
vampirchik [111]3 years ago
3 0

Answer:

Total # of students = 12 + 13 = 25

%-Boys = (12 / 25) x 100% = 48%

Step-by-step explanation:

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Use substitution to solve each system of equations. y = 4x + 22 4x – 6y = –32
bija089 [108]

Answer:

The answer is (-5,2)

Step-by-step explanation:

So we have 2 equations and we need to solve them by substitution.

1) y = 4x + 22

2) 4x – 6y = –32

Since we already have y isolated in equation #1, we'll use that value in equation #2:

4x - 6(4x + 22) = -32

4x - 24x - 132 = -32

-20x = 100

x = -5

Then we put that value of x in the first equation:

y = 4 (-5) + 22 = -20 + 22 = 2

The answer is then (-5,2)

8 0
3 years ago
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I NEED HELP, I NEED TO SHOW WORK
Verdich [7]

Answer: 9 over 12 is = 15 over x

Step-by-step explanation:

7 0
3 years ago
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alex saved $16 this month. if he decides to donate 3/4 of his savings to charity. hiw much money will alex be donating?
azamat
Alex will be donating $12 of her $16
3 0
3 years ago
52 of 85 is what amount
vitfil [10]
<span><span>52 of 85 = Tip $44.19
</span><span>
                 Total $96.19</span></span>
6 0
3 years ago
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
3 years ago
Read 2 more answers
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