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4 years ago

Which shows a correct order to solve this story problem?

Mathematics

2 answers:

irina1246 [14]4 years ago

5 0

C. answer = 45.22+33.50 = 78.72+6.30 = 85.02 / 2 = 42.51

torisob [31]4 years ago

3 0

you will have to do letter c witch was:

Step 1: Add the price of the tickets and the amount spent on food.
Step 2: Add the amount of the tax.
Step 3: Divide that total by 2.

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What is the equation of the line that passes through the point (1,3) and is perpendicular to the line 2x+3y=15?

Snezhnost [94]

Answer:

3x -2y = -3

Step-by-step explanation:

The perpendicular line will have a slope that is the negative reciprocal of the slope of the given line. The constant in its equation will ensure the line goes through the desired point.

<h3>form of the equation</h3>

The equation for the given line is in standard form:

ax +by = c . . . . . where a>0 and a, b, c are mutually prime

The equation of the perpendicular line can be written ...

bx -ay = c' . . . . . where c' is a new constant

For a=2, b=3, the equation of the perpendicular will be ...

3x -2y = c'

<h3>constant</h3>

The constant is chosen so the given (x, y) values satisfy the equation.

3(1) -2(3) = c' = -3

<h3>equation</h3>

Then the equation of the perpendicular line through point (1, 3) is ...

3x -2y = -3
_____

<em>Additional comment</em>

For the standard-form equation shown, the slope of the line is ...

m = -a/b

The negative reciprocal slope is ...

-1/m = -1/(-a/b) = b/a

This is the original slope equation with a and b swapped, and one of them negated.

The graph confirms the new equation.

6 0

2 years ago

Help please help pre Algebra

seraphim [82]

Answer:

none is a solution...the solution.is -3

4 0

3 years ago

PLS HELP, WHAT ANSWER?

Andreas93 [3]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What is the slope of the line y= 7x + 19 (5)

vagabundo [1.1K]

Answer:

The answer is m = 7

Step-by-step explanation:

Rewrite in slope-intercept form.

The slope-intercept form is y = mx + b , where m is the slope and b is the y-intercept.

y = mx + b

Multiply 19 by 5.

y = 7x + 95

Using the slope-intercept form, the slope is 7 .

m = 7

I hope this helps.

5 0

4 years ago

Read 2 more answers

Using the letters in the word INNOVATIVE, find the number of permutations that can be formed using 4 letters at a time. Show you

lyudmila [28]

Answer: 1) 5040 and 2) 165

Step-by-step explanation:

1) Here total number of letters = 10

The number of permutations that can be formed using 4 letters at a time

= P (10, 4)

= $10_P_4$

= $\frac{10!}{(10-4)!}$

= $\frac{10!}{6!}$

= $\frac{10\times 9\times 8\times 7\times 6!}{6!}$

= 10 × 9 × 8 × 7

= 5040

2) Here the total number of machine = 11

The different combinations of machines can Geoff choose from to use

= $11_C_3$

= $\frac{11!}{(11-3)!3!}$

= $\frac{11!}{8!3!}$

= $\frac{11\times 10\times 9\times 8!}{8!\times 6}$

= 11 × 5 × 3

= 165

5 0

3 years ago