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2 years ago

6

At a zoo, 20% of the animals are amphibians. If 65 animals are amphibians, how many

1 answer:

Gnom [1K]2 years ago

4 0

Answer:

d. 325

If 20 percent of the animals are amphibians and yiu are trying to find the total amound of numbers in the zoo you first have to realize that 20% is equal to 1/5. Then since you are trying to find the total and not decrease the number, you get the reciprical of 1\5, which is 5/1 and multiply it by 65/1 . 5 × 65 equals 325.

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Opposite reciprocal of -2/3? geometry/algebra

Ulleksa [173]

The answer would be -3/2

A reciprocal is the inverse of a number.
When using this in fractions just switch the numerator and denominator. This is done by dividing the fraction by one, but in the case of a negative fraction you would divide by negative 1.

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2 years ago

A cylinder and cone have the same height and radius. The height of each is 5 cm, and the radius is 2 cm. Calculate the volume of

never [62]

Answer:

The volume of a cylinder is 62.8 cm and the volume of a cone is 20.9 cm³ .

Step-by-step explanation:

Formula

$Volume\ of\ a\ cylinder = \pi r^{2} h$

$Volume\ of\ a\ cone = \pi r^{2} \frac{h}{3}$

Where r is the radius and h is the height .

As given

A cylinder and cone have the same height and radius. The height of each is 5 cm, and the radius is 2 cm.

$\pi = 3.14$

Thus

$Volume\ of\ a\ cylinder =3.14\times 5\times 2\times 2$

= 62.8 cm³

Thus the volume of a cylinder is 62.8 cm³ .

$Volume\ of\ a\ cone = 3.14\times 2\times 2\times frac{5}{3}$

$Volume\ of\ a\ cone =\frac{5\times 3.14\times 2\times 2}{3}$

$Volume\ of\ a\ cone =\frac{62.8}{3}$

= 20.9 (Approx) cm³

Thus the volume of a cone is 20.9 cm³ .

Therefore the volume of a cylinder is 62.8 cm and the volume of a cone is 20.9 cm³ .

8 0

3 years ago

MIguel is making a trail mix. He Uses five and one third ounces of nuts and two and tree fourths ounces of raisins Which of thes

nydimaria [60]

Answer:

$2.58\ more\ nuts\ Miguel\ uses\ than\ raisins.$

Step-by-step explanation:

$Nuts\ used=5\frac{1}{3}\\\\Nuts\ used=\frac{16}{3}$

$Raisins\ used=2\frac{3}{4}\\\\Raisins\ used=\frac{11}{4}$

$difference\ between\ nuts\ and\ raisin=\frac{16}{3}-\frac{11}{4}=\frac{64-33}{12}=\frac{31}{12}\approx 2.58$

$2.58\ more\ nuts\ Miguel\ uses\ than\ raisins.$

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Answer:

yes they can

Step-by-step explanation:

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A hat contains four balls. The balls are numbered 3, 6, 6, and 7. One ball is randomly selected and not replaced, and then a sec

svp [43]

Answer:

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2 years ago