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3 years ago

Write an algebraic expression for 15 increased by three times a number n

Mathematics

2 answers:

Trava [24]3 years ago

7 0

Answer:

f(n)= 3n+15

Step-by-step explanation:

zhannawk [14.2K]3 years ago

3 0

(15+3) x n

Is the correct answer

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Can someone help me out?

tatiyna

Answer:

Step-by-step explanation:

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3 years ago

Which is bigger 17.5% or 1/6

kotykmax [81]

17.5% is greater than 1/6

7 0

3 years ago

Read 2 more answers

Tova has 17 marbles. The types of marbles she has are aggies, comets, and cats eyes. She has twictas many aggies as comets. She

GarryVolchara [31]

Answer:

Tova has 5 cat's eyes.

Step-by-step explanation:

Use simple math to figure out the amounts. If she had twice as many aggies as comets, and the amount of aggies is 8, she had 4 comets. She had one more cat eye than comets. That means that she had 5 cat's eyes.

Answer: Tova has 5 cat's eyes.

7 0

3 years ago

HELP FAST WILL MAKE BRAINLIEST

valkas [14]

Answer:

x = 0.357143

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
Subtract Property of Equality

Step-by-step explanation:

Step 1: Define

-1.6 - 2x = 5x + 0.9

Step 2: Solve for x

Add 2x on both sides: -1.6 = 7x + 0.9
Subtract 0.9 on both sides: 2.5 = 7x
Divide 7 on both sides: 0.357143 = x
Rewrite: x = 0.357143

8 0

3 years ago

Solve perfect square equation х^2 +6х + 9 = 8

LiRa [457]

Answer:

$\large\boxed{x=-3-2\sqrt2\ \vee\ x=-2+2\sqrt2}$

Step-by-step explanation:

$x^2+6x+9=8\\\\x^2+2(x)(3)+3^2=8\qquad\text{use}\ (a+b)^2=a^2+2ab+b^2\\\\(x+3)^2=8\iff x+3=\pm\sqrt8\\\\x+3=\pm\sqrt{4\cdot2}\\\\x+3=\pm\sqrt4\cdot\sqrt2\\\\x+3=\pm2\sqrt2\qquad\text{subtract 3 from both sides}\\\\x=-3-2\sqrt2\ \vee\ x=-2+2\sqrt2$

8 0

4 years ago