All categories

3 years ago

A person walks 1/5 miles in 1/15 hour. The persons speed is _ miles per hour. whats the speed.

Mathematics

1 answer:

Lostsunrise [7]3 years ago

8 0

Answer:

3 miles

Step-by-step explanation:

you walk 1/5 miles for 1/15 hour, the just do 1/5 time 15 = 15/5 =3

You might be interested in

Compute: 3.5 x 2.4 x 0.01 0.84 0.084 0.0084

Georgia [21]

The answer is 0.084.

8 0

3 years ago

A block of ice has a square top and bottom and rectangular sides. At a certain point in

Lilit [14]

Answer:

$\frac{dV}{dt} = 360 \ cm^3/h$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Geometry

Volume of a Rectangular Prism: V = lwh

Calculus

Derivatives

Derivative Notation

Differentiating with respect to time

Basic Power Rule:

f(x) = cxⁿ
f’(x) = c·nxⁿ⁻¹

Step-by-step explanation:

Step 1: Define

$l = 30 \ cm\\w = l\\\frac{dl}{dt} = 2 \ cm/h\\h = 20 \ cm\\\frac{dh}{dt} = 3 \ cm/h$

Step 2: Differentiate

Rewrite [VRP]: $V = l^2h$
Differentiate [Basic Power Rule]: $\frac{dV}{dt} = 2l\frac{dl}{dt} \frac{dh}{dt}$

Step 3: Solve for Rate

Substitute: $\frac{dV}{dt} = 2(30 \ cm)(2 \ cm/h)(3 \ cm/h)$
Multiply: $\frac{dV}{dt} = 360 \ cm^3/h$

Here this tells us that our volume is decreasing (ice melting) at a rate of 360 cm³ per hour.

3 0

3 years ago

Find (f*g) (x) for the following functions. f(x) = 9x2 – 2x – 9 g(x) = 11x – 9

e-lub [12.9K]

Answer:

all work is shown and pictured

4 0

3 years ago

Read 2 more answers

At a sale, coats were sold for 52% of their original price. If the coats originally cost $200 each, how much did a coat cost on

Talja [164]

Answer is 104

Step-by-step explanation:

8 0

3 years ago

HELP!!!

tatuchka [14]

Answer:

6.34

Explanation:

6.34615384615 rounded is 6.34

so therefore 6.34*26 is 164.84 which is more closer to 165. But if you happen to multiply 6.35*26 it is 165.1 but it goes over the right number by 0.01. So stick to 6.34 and have under exceeded amount.

Can I please have brainliest.

8 0

2 years ago