A number is chosen at random from 1 to 50. find the probability of selecting numbers with 3 in the tens places

Michelle went on a hike. She started on the trail at 6:45 a.m and returned at 3:28 p.m. How long did she hike?

Lerok [7]

D. Because if one time is a certain amount of time away from 12pm and the other one is a certain amout away from 12pm then you add them up and get a number of hours and minutes

8 0

3 years ago

Read 2 more answers

Carlos buys a vintage automobile for $7300. He estimates that the value will increase by 3% every year. Estimate the value of th

lakkis [162]

Answer:

$9810.59

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Simple Interest Rate Formula: $\displaystyle A = P(1 + r)^t$

P is principle amount
r is rate
t is time (in years)

Step-by-step explanation:

Step 1: Define

Identify variables

P = 7300

r = 3% = 0.03

t = 10

Step 2: Solve for A

Substitute in variables [Simple Interest Rate Formula]: $\displaystyle A = 7300(1 + 0.03)^{10}$
(Parenthesis) Add: $\displaystyle A = 7300(1.03)^{10}$
Evaluate exponents: $\displaystyle A = 7300(1.34392)$
Multiply: $\displaystyle A = 9810.59$

7 0

3 years ago

Please help!!! i need help with this

goblinko [34]

Answer:

Step-by-step explanation:

Combine like terms. Like terms have same variable with same power

a) (2xy + 4x) + (15xy - 5x) = 2xy + 15xy + 4x - 5x

= 17xy - x

b) (6a + 4b² - 3) + (3b² - 5) = 6a + 4b² + 3b² - 3 - 5

= 6a + 7b² - 8

c) (4x³ - 3x² +4x) + (8x² - 5x ) = 4x³ - 3x² + 8x² + 4x - 5x

= 4x³ + 5x² - x

d) (7b - 6a + 9y) - (12b + 5a - 2y) =

In subtraction, add the additive inverse of (12b + 5a - 2y)

additive inverse = - 12b - 5a + 2y

(7b - 6a + 9y) - (12b + 5a - 2y) = 7b - 6a + 9y -12b -5a + 2y

= 7b - 12b -6a - 5a + 9y + 2y

= -5b - 11a + 11y

e) (2x² + 7x - 2 + 9y) - (13x + 4x² + 5 - 6y)

Additive inverse of 13x + 4x² + 5 - 6y = -13x + 4x² - 5 + 6y

(2x² + 7x - 2 + 9y) - (13x + 4x² + 5 - 6y)= 2x² + 7x - 2 + 9y -13x - 4x² -5 +6y

= 2x² - 4x² + 7x -13x -2 - 5 + 9y + 6y

= -2x² - 6x - 7 + 15y

5 0

2 years ago

What is cot(< a)? Reduce fractional answers to lowest terms.

jeka94

Answer:

The value of cot (∠A) = 3/4

Step-by-step explanation:

Given the angle ∠A of a right-angled triangle

The opposite of ∠A = 4

The adjacent of ∠A = 3

We know that the trigonometric ratio

cot (∠A) = adjacent / opposite

= 3/4

Thus, the value of cot (∠A) = 3/4

5 0

3 years ago

7.2 ÷ 0.09 = 7.2/0.09 = ________ Write your quotient as a whole number.

const2013 [10]

Answer:

80

Step-by-step explanation:

5 0

3 years ago