4 years ago

4 años más que el triple de la edad de Gabriel

Mathematics

1 answer:

Ierofanga [76]4 years ago

7 0

Cuantos años tiene gabriel?

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An ordinary (fair) die is a cube with the numbers 1 through 6 on the sides (represented by painted spots). Imagine that such a d

Ne4ueva [31]

Answer:

A=11.1%

B=33.33%

Step-by-step explanation:

A.First Die Second die

6 5

5 6

6 4

4 6

4/36=1/9=.11=11.1 %

12/36=0.3333=33.333 percent

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3 years ago

THE SUM OF THE DIGITS OF A CERTAIN TWO-DIGIT NUMBER IS 13. REVERSING ITS DIGITS INCREASED THE NUMBER BY 9. WHAT IS THE NUMBER?

KonstantinChe [14]

Answer:

Step-by-step explanation:

Adding 6 and 7 together equate to 13. You then switch the digits of 67 to 76 and the number is increased by 9.

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3 years ago

An electrician charges $70 dollars per hour and a $40 dollar home-visit fee.

elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

The expression will be

(70h+40)$

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4 years ago

The figure the Floor Plan of a balcony ,it consists of △ABC and semi-circle ,

ivanzaharov [21]

Step-by-step explanation:

(a) In right triangle ABC,

$AC^2 =AB^2 +BC^2 \\ = {12}^{2} + {5}^{2} \\ = 144 + 25 \\ = 169 \\ AC = \sqrt{169} \\ \therefore \: AC = 13\: m \\ \\ AC \: is \: the \: diameter \: of \: semicircle \\ \therefore \: r = \frac{1}{2} \times AC = \frac{1}{2} \times 13 = 6.5 \: m \\ Circumference \:of \:semi-circle \\ C = \pi \: r = 3.14 \times 6.5 = 20.41 \:m\:$

Perimeter of Balcony = 12 + 5 + 20.41 = 37.41 m

(b) Area of balcony

$=\frac{1}{2}\times 12\times 5+\frac{1}{2} \pi r^2 \\\\=\times 6\times 5+\frac{1}{2} \times 3.14\times (6.5)^2 \\\\=30+\frac{1}{2} \times 3.14\times42.25\\\\= 30+\frac{1}{2} \times 132.665\\\\= 30 + 66.3325\\\\= 96.3325 \:m^2 \\\\\approx 96. 33\:m^2$

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4 years ago

Equivalent expressions

Westkost [7]

Answer:

16a + 20

12a + 20 + 4a

2(8a+10)

Step-by-step explanation:

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3 years ago