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3 years ago

Which is an example of an algebraic expression?

1 answer:

4 0

The best option is A) d - 90.

Expressions has no equal sign nor an inequality symbol. An expression has only standard or normal numbers, with variables and some basic mathematical operations.

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7L+5r=97 What’s the answer for both letters?

Kobotan [32]

Answer:

r = 11

L = 6

Step-by-step explanation:

7(6) = 42

5(11) = 55

42 + 55 = 97

8 0

3 years ago

Given P equals $11260, T equals six years, and R equals 7.5% compounded weekly. Use the correct compound interest formula to cal

Dmitrij [34]

We would apply the formula for determining compound interest which is expressed as

A = P(1 + r/n)^nt

where

A = total amount in the account at the end of t years

r represents the interest rate

n represents the periodic interval at which it was compounded

p represents the principal or initial amount deposited

From the information given,

P = 11260

t = 6

r = 7.5/100 = 0.075

n = 52(Assuming the number of weeks in a year is 52 and it would be compounded 52 times in a year)

Thus, we have

A = 11260(1 + 0.075/52)^52*6

A = 11260(1 + 0.075/52)^312

A = 17653.5

3 0

1 year ago

Is x 12 or 15? Or none?

Usimov [2.4K]

The answer is 15 buddy!

7 0

3 years ago

Read 2 more answers

Solve the inequality for x 3^(6x+18)<27^(3x)

Lera25 [3.4K]

Answer:

$\displaystyle x > 6$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Algebra I

Terms/Coefficients
Factoring

Algebra II

Exponential Rule [Powering]: $\displaystyle (b^m)^n = b^{m \cdot n}$
Solving exponential equations

Step-by-step explanation:

Step 1: Define

Identify

$\displaystyle 3^{6x + 18} < 27^{3x}$

Step 2: Solve for x

Rewrite: $\displaystyle 3^{6x + 18} < 3^{3(3x)}$
Set: $\displaystyle 6x + 18 < 3(3x)$
Factor: $\displaystyle 3(2x + 6) < 3(3x)$
[Division Property of Equality] Divide 3 on both sides: $\displaystyle 2x + 6 < 3x$
[Subtraction Property of Equality] Subtract 3x on both sides: $\displaystyle -x + 6 < 0$
[Subtraction Property of Equality] Subtract 6 on both sides: $\displaystyle -x < -6$
[Division Property of Equality] Divide -1 on both sides: $\displaystyle x > 6$