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velikii [3]
3 years ago
15

Aldo made $153 for 9 hours of work At the same rate how much would he make for 18 hours of work?

Mathematics
2 answers:
juin [17]3 years ago
8 0

Answer:

306

Step-by-step explanation:

153 divided by 9

17 times 18

If you can please put brainiest

KatRina [158]3 years ago
5 0

Answer:

306 dollars

Step-by-step explanation:

We can use a ratio to solve

$153          x

---------- = ------------

9 hours    18 hours

Using cross products

153*18 = 9x

2754 = 9x

Divide each side by 9

2754/9 = 9x/9

306 =x

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Is y=x squared +2 a linear function
ollegr [7]
No, this would not be a linear function. Being linear means it creates a straight line, but this function has an x squared. Anytime x^2 is in a function, the graph is a u shape, called a parabola. A simple linear function is y=x :D
7 0
3 years ago
Read 2 more answers
Help me ASAP PLEASE
lina2011 [118]

Answer:

  4. Functions: 1, 2, 4, 5, 7, 8, 11, 12

  5. y = -1/2x+5/2, x ≤ -1; 2x +1, x > -1.

      y = 2, x < 0; x, 0 ≤ x ≤ 3; 3 x > 3.

Step-by-step explanation:

4. A list of ordered pairs is a function of no x-values are re-used. In (3) and (6), the value x=2 is used more than once.

A graph represents a function if it passes the "vertical line test." A vertical line cannot intersect the graph in 2 or more points. (9) and (10) both fail that test.

If the relation is not listed here as being "not a function," then it is one of the answers to question 4.

__

5. The first step in writing the equation of a piecewise function is to identify the pieces. These are generally bounded by points of discontinuity--jumps in the function value, or changes in the slope of lines.

The second step is to identify the section of the function that boundary points belong to. Solid dots are part of the function definition; open circles are not.

<u>Left Graph</u>

The left piece ends at x=-1. There is a solid dot attached to the left piece, so its definition will be for the domain x ≤ -1. That line has slope -1/2, since is drops 1 unit for each 2 to the right. If extended, it would intersect the y-axis at y = 2 1/2 = 5/2. So, the piece on the left is y = -1/2x + 5/2 for x ≤ -1.

The right piece starts at x=-1, but does not include that point. It has a rise of 2 for each 1 to the right, so its slope is 2. It crosses the y-axis at y=1, so the piece on the right is y = 2x + 1 for x > -1.

You can use the method of your textbook author to combine theses pieces into one equation. The method shown above is one way to do it.

__

<u>Right Graph</u>

This graph has a discontinuity at x=0 and a change in slope at x=3. It can be described by 3 pieces. The point at x=0 does not belong to the left piece, but goes with the middle piece.

The left piece of the function is the constant 2, so has the equation y = 2 for x < 0.

The middle piece has a slope of 1 and a y-intercept of 0, so has the equation y = x for 0 ≤ x ≤ 3.

The point at x=3 belongs to both the middle piece and the right piece, so can be part of both function definitions, if you like. Generally, it is better form to include any given x-value in only one of the pieces of the function. So the equation for the right piece can be y = 3 for x > 3.

4 0
3 years ago
In an agricultural class, there are 17 freshmen students and 19 sophomore students. What ratio compares the number of freshmen t
zheka24 [161]

Answer:

  B. F:S = 17 to 19; S:F = 19 to 17

Step-by-step explanation:

Put the corresponding numbers in the corresponding parts of the ratio you want to write:

  freshmen to sophomores (F:S)

  17 to 19

___

  sophomores to freshmen (S:F)

  19 to 17

These pairs of numbers match choice B.

5 0
3 years ago
Naomi just accepted a job at a new company where she will make an annual salary of $66000. Naomi was told that for each year she
Vaselesa [24]

Answer:

$82,000

$66,000 + $4000t

Step-by-step explanation:

Initial annual salary = $66,000

Salary raise per year = $4000

Salary earned after 4 years :

Initial salary + (raise per year * number of years)

$66,000 + ($4000 * 4)

$66,000 + $16,000

= $82,000

Salart after t years :

Initial salary + (raise per year * number of years)

$66,000 +.($4000 * t)

$66,000 + $4000t

3 0
2 years ago
Read 2 more answers
Find the area and perimeter of each composite figure use 3.14 for pi round your answer to the nearest 10th
Ad libitum [116K]

1. Perimeter is 3 + 3 +3 +4 +5 = 18 feet

  Area = 3*3 = 9, 1/2*3*4 = 6, 9 + 6 =15 square feet

2. perimeter = 2.5 +2.5+ 2.5+2.5+0.5+0.5 = 11 meters

   Area = 3*.5 = 1.5, 3*2=6,  6+1.5 = 7.5 square meters

3. perimeter = 3.14*2*3 = 18.84 +8 = 26.8 inches

   Area = 6*4 = 24 + 3.14*3^2 = 28.26 = 28.26 +24 = 52.3 inches

4. surface area = 2*π*6*20+2*π*6^2= 980.2 yards

Volume = π*6^2*20 = 2261.9 cubic yards

5.surface area = 2*(9*7+2*2+2*9) = 190 cm

 Volume = 2*7*9 = 126 cubic cm

6. surface area = <span>2*(11*11+11*11+11*11) = 726 mm</span>

<span>  Volume = 11 *11*11 = 1331 cubic cm</span>


7 0
3 years ago
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