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Andrei [34K]
3 years ago
7

30/55 reduced fraction lowest term

Mathematics
2 answers:
Nadya [2.5K]3 years ago
6 0
The answer is 6/11 hope this help:)
iVinArrow [24]3 years ago
3 0
Divide numerator and denominator by common factor 5 to get 6/11
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If a polyhedron has 5 faces and 7 vertices, then it must have how many edges? Please show step-by-step work
Juli2301 [7.4K]

Answer:

10 edges

Step-by-step explanation:

we know that

The Euler's formula state that: In a polyhedron, the number of vertices, minus the number of edges, plus the number of faces, is equal to two

V - E + F = 2

in this problem  we have

V=7\\E=?\\F=5

substitute the given values

7 - E + 5 = 2

solve for E

Combine like terms in the left side

12 - E = 2

subtract 12 both sides

- E = -10

Multiply by -1 both sides

E =10

8 0
2 years ago
Help meeeee please. ‼️‼️‼️‼️
KatRina [158]

Step-by-step explanation:

look at the picture !

she has to paint actually 6 rectangles :

the 3 tops of the 3 stairs.

and the 3 vertical front boards (the front of each step of the stairs).

what is the area of these rectangles ? summing up all 6 - that is the surface area to be painted.

each top rectangle is clearly

82×19 (19 cm deep) = 1558 cm²

each front board is

82×12 (12 cm high) = 984 cm²

so, in total we have

3×1558 + 3×984 = 4674 + 2952 = 7626 cm²

as surface area to be painted.

8 0
2 years ago
Someone please help me with the perimeter and area of this problem
Tcecarenko [31]

Answer: Perimeter = 40

               Area = 204

Step-by-step explanation:

Perimeter is the sum of all the sides:

    11 + 12 + 17 = 40

The area of a triangle is 1/2 base x height

   1/2( 17 x 24)

   1/2( 408) = 204

5 0
2 years ago
movie tickets cost $9.95 for adults and $6.75 for kids they buy 2 adult tickets and 4 students and $28 popcorn
Harrizon [31]

Answer:

the total is $153.9

Step-by-step explanation:

The total for the adults is $19.9

The children $27

Popcorn $224

$9.95×2=$19.9

$6.75×4=$27

$28×6=$168

6 0
2 years ago
A plant grows at a rate of 7 ft every two weeks​
vlabodo [156]

Answer:

0 is 0,1 is 7,2 is 14 and 3 is 20 (c. is that it has not grown yet and (d. is 7 per week

3 0
3 years ago
Read 2 more answers
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