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shusha [124]
2 years ago
7

Between Monday and Tuesday, Henry swam a total of 4 3⁄9 miles. If he swam 2 7⁄9 miles on Monday, how many miles did he swim on T

uesday?
Mathematics
1 answer:
sp2606 [1]2 years ago
6 0
I believe it is 1 14/25

39/9
÷
25/9
=
39 × 9
9 × 25
=
351/225
=
351 ÷ 9
225 ÷ 9
=
39/25
OR 1 14/25
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Solve this quadratic equation by completing the square. x2 + 10x = 26
Misha Larkins [42]
                        x² + 10x = 26
                x² + 10x + 25 = 26 + 25
          x² + 5x + 5x + 25 = 51
x(x) + x(5) + 5(x) + 5(5) = 51
         x(x + 5) + 5(x + 5) = 51
                 (x + 5)(x + 5) = 51
                          (x + 5)² = 51
                             x + 5 = ±√(51)
                                 - 5      - 5
                                   x = -5 ± √(51)
                                   x = -5 + √(51)    or    x = -5 - √(51)
5 0
3 years ago
Read 2 more answers
Help please? I can choose more than one answer I just don’t understand this stuff
Gwar [14]

...hay.... \\  a + 8 =    -  \frac{5}{a}  \\ a +  \frac{5}{a}  =  - 8 \\  {a }^{2}  + 5 =  - 8a \\  {a }^{2}  + 8a =  - 5 \\ henca \:  \: opion \: no.1 \: is \: correct
7 0
3 years ago
which equation is the equation of the line in point slope form that has a slope of 12 and passes through the point (-1, 14)
Nostrana [21]

Point slope from would be 12x-y+26=0.

Black is the equation, 12x-y+26=0.

  • Orange is <em>y-14=12(x+1)</em>
  • Blue is <em>y-14=12(x-1)</em>
  • Red is <em>y+14=12(x-1)</em>
  • Green is <em>y-14=-12(x+1)</em>

5 0
3 years ago
Holly made 12 pair of earrings for each of her girlfriends. To wrap the pairs individually, she creates a simple cardboard gift
Mekhanik [1.2K]

Answer:

3280cm²

Step-by-step explanation:

We are told the gift box is folded into a Pyramid with a square base.

Hence, we are to find the Surface Area of a square pyramid

From the question, we are given:

Length of the base of the square = 10cm

Triangle

Side length = 10cm

Height = 8 2/3 cm

A square Pyramid has 5 faces: 4 triangles and 1 square.

Step 1

Find the Area of the square

Formula = Side length² this is because all the side of a square is equal.

Length of the base = 10cm

Area of the square = (10cm)²

= 100cm²

Step 2

Find the Area of the triangle. We are told the 4 triangles are equilateral, which means their side are equal.

Hence, for one triangle.

Area of a triangle = 1/2 × base × height

Base = side length = 10cm

Height = 8 2/3 = 8.6666666667cm

Area of a triangle = 1/2 × 10 × 8.6666666667

Area of a triangle = 43.333333333cm²

Since we have 4 triangles

We would have : 4 × 43.333333333cm²

= 173.33333333cm²

The Area of the 4 equilateral triangles =

173.33333333cm²

Step 3

The Surface area of the Square Pyramid

= Sum of the areas of all the faces.

= 100cm² + 173.33333333cm²

= 273.33333333cm²

Therefore, the minimum amount of cardboard needed to make one gift box = 273.33333333cm²

Step 4

The minimum amount of cardboard Holly needs to create 12 gift boxes to wrap each pair of earrings individually is calculated as: 12 × 273.33333333cm²

= 3280cm²

7 0
3 years ago
I don’t know number 20
makkiz [27]

the answer is 25 because it’s going up by 5s

7 0
2 years ago
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