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3 years ago

Brody had his computer repaired at Store A. His bill was:

Mathematics

2 answers:

maw [93]3 years ago

5 0

Answer:

Add the repair cost and tax to get the total amount. Then multiply the total amount by 0.15 to find the gratuity.

Step-by-step explanation:

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Oksanka [162]3 years ago

4 0

Answer:

Add the repair cost and tax to get the total amount. Then multiply the total amount by 0.15 to find the gratuity.

Step-by-step explanation:

This is sample response

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What is the slope of the line 8x + 6y = 12?

anyanavicka [17]

The slope of the line is -4/3

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4 years ago

Read 2 more answers

Use properties of operations to write two equivalent expressions for 13(4 + x).

lesantik [10]

Answer:

13(4+x)

=52+13x

Step-by-step explanation:

13 multiplies the 4 and x.

then 13 multiply 4 is 52 while 13 multiply x 13x.

6 0

3 years ago

Chantal bicycles at a speed of 20 miles per hour and has already riden 45 miles when Trisha begins cycling. Trish bicycles at a

melomori [17]

Answer:

Chantal and Trisha will have both traveled 105 miles in 20 minutes.

Step-by-step explanation:

$y$ is distance in miles, $x$ is time in hours.

The two equations are:

$y = \frac{20}{x} + 45$

$y = \frac{35}{x}$

Set them equal to each other and solve for x:

$\frac{35}{x} = \frac{20}{x} + 45$

$\frac{35}{x} - \frac{20}{x} = 45$

$\frac{35-20}{x} = 45$

$\frac{15}{x} = 45$

$x = \frac{15}{45} = \frac{1}{3} hours = 20 minutes$

Plug that back into the equations to confirm this $x$ gives the same $y$ :

$y = \frac{20}{1/3} + 45 = 105 miles$

$y = \frac{35}{1/3} = 105 miles$

4 0

3 years ago

I need the answer please

lutik1710 [3]

5 inches : 2 feet

÷2.5

120 inches : 48 feet

÷2.5

answer: 48 feet

4 0

3 years ago

Nine more than seven times a number, n, gives the same value as one more than the square of the number. Write an equation and so

Maru [420]

Answer:

7n + 9 = n² + 1

n = -1, 8

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Algebra I

Factoring
Solving quadratics

Step-by-step explanation:

Step 1: Set up Equation

"Nine more" is + 9

"Seven times a number" is 7n

"One more" is + 1

"Square of the [same] number" is n²

7n + 9 = n² + 1

Step 2: Solve for n

Subtract 7n on both sides: 9 = n² - 7n + 1
Subtract 9 on both sides: 0 = n² - 7n - 8
Factor quadratic: 0 = (n - 8)(n + 1)
Solve roots: n = -1, 8

4 0

3 years ago