4 years ago

A.The value of a book is $340 and

Mathematics

1 answer:

Oksanka [162]4 years ago

5 0

Answer:

a. $190.3

b. $3.94

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99 litres of gasoline oil is poured into a cylindrical drum of 60cm in diameter. How deep is the oil in the drum?

ICE Princess25 [194]

Answer:

35 cm

Step-by-step explanation:

The volume of a cylinder is given by ...

V = πr²h

We want to find h for the given volume and diameter. First, we must convert the given values to compatible units.

1 L = 1000 cm³, so 99 L = 99,000 cm³

60 cm diameter = 2 × 30 cm radius

So, we have ...

99,000 cm³ = π(30 cm)²h

99,000/(900π) cm = h ≈ 35.01 cm

The oil is 35 cm deep in the drum.

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3 years ago

Megan's family had cakes on two days. The first day, they had 2 3/4 cakes left. The second day, they had 1 1/4 cakes left. How m

vlabodo [156]

Answer: 4 cakes left in all.

Step-by-step explanation:

Given: Cakes left on first day= $2\frac{3}{4}=\frac{11}{4}$

Cakes left on second day = $1\frac{1}{4}=\frac{5}{4}$

The number of cakes left in all= $\frac{11}{4}+\frac{5}{4}$

⇒The number of cakes left in all= $\frac{11+5}{4}=\frac{16}{4}$

Therefore, The number of cakes left in all=4

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3 years ago

What is the volume of a cone with a height of 9.5 inches and a radius of 8 inches? Cone V = 1 3 Bh 1. Rewrite the formula for th

Nesterboy [21]

Answer:

636.4 in³

Step-by-step explanation:

Volume of a cone is given by:

$V = \frac{1}{3}\pi r^2 h$

where r is the radius of the base of the cone and h is its height.

It is given that, the radius of the base of the cone is, r = 8 in

The height of the cone is, h = 9.5

$\Rightarrow V = \frac{1}{3} \times 3.14 \times (8)^2 (9.5) = 636.4 in^3$

Thus, the volume of the cone is 636.4 in³

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4 years ago

Read 2 more answers

Nancy had 333 dollars to spend on 9 books. After buying them she had 18 dollars. How much did each book cost ?

MissTica

Answer:

35 dollars

Step-by-step explanation:333-18=315 dollars

315/9=35 dollars for each book

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3 years ago

Note that the right triangles with sides equal to 5, 12, 13 and 9, 12, 13 both have a side equal to 12. using this fact find the

kondor19780726 [428]

There is a mistake 9,12,13 is not a right triangle. but 9,12,15 is. IF you use this triangle instead, then the area of the 13,14,15 triangle is the sum of the area of the other two triangles.

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4 years ago