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inessss [21]
3 years ago
13

E these word problems. Check your answers.

Mathematics
1 answer:
hammer [34]3 years ago
6 0

Answer:47.38

  1. Step-by-step explanation:175.50/100 x27

im not that sure

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30 POINTS TO WHOEVER HELPS WITH THIS I NEED IT ASAP PLEASE HELP
Mekhanik [1.2K]

Answer:

<em>4a ) Difference ⇒ $ 63.24,</em>

<em>4b ) 4 children</em>

Step-by-step explanation:

4a ) If the number of children is represented by the value of x, let us substitute a family of 2 children as value of x into this equation we are given;

y = 21.08 * ( 2 ) + 85.15 ⇒ Multiply 21.08 by 2,

y = 42.16 + 85.15 ⇒ Combine like terms,

y = 127.31

If y ⇒ amount spent on grocery's, let us solve for the amount spent on 5 children, and subtract from this amount;

y = 21.08 * ( 5 ) + 85.15 ⇒ Multiply 21.08 by 5,

y = 105.4 + 85.15 ⇒ Combine like terms,

y = 190.55

Difference; 190.55 - 127.31 = 63.24,

<em>Solution; Difference ⇒ $ 63.24</em>

4b ) If the amount is $ 169.47, let us plug it into our given equation provided amount spent on groceries ⇒ y;

169.47 = 21.08x + 85.15 ⇒ Subtract 85.15 from either side of equation,

21.08x = 84.32 ⇒ Divide either side 21.08,

x = 4 children

<em>Solution; 4 children</em>

5 0
3 years ago
10. What is the value of the function f(x) = 7x when x = 0.75 ?
melomori [17]

Answer:

7(0.75) = 5.25

f = 7

Step-by-step explanation:

7 0
2 years ago
What is the length of a rectangle with with 20 inches it in area 114 in.2
KiRa [710]
Length is 5.7 inches
3 0
3 years ago
(1 - 1/3) /2 i need helppp
NARA [144]
<h2>1/3 is the correct answer!</h2><h3></h3><h3>1 - 1/3 = 2/3</h3><h3>2/3 ÷ 2 = 1/3</h3><h3 /><h3><em>Please let me know if I am wrong.</em></h3>
8 0
3 years ago
Read 2 more answers
How do I make a graph for this?
12345 [234]

To calculate the slope of a line you need only two points from that line, (x1, y1) and (x2, y2).

<span>The equation used to calculate the slope from two points is:On a graph, this can be represented as:</span>

There are three steps in calculating the slope of a straight line when you are not given its equation.

<span><span>Step One:<span> Identify two points on the line.</span></span><span>Step Two:<span> Select one to be (x</span>1<span>, y</span>1<span>) and the other to be (x</span>2<span>, y</span>2).</span><span>Step Three:<span> Use the slope equation to calculate slope.</span></span></span>

Take a moment to work through an example where we are given two points.

Example

Let's say that points (15, 8) and (10, 7) are on a straight line. What is the slope of this line?

<span><span>Step One:<span> Identify two points on the line.</span>In this example we are given two points, (15, 8) and (10, 7), on a straight line.</span><span>Step Two:<span> Select one to be (x</span>1<span>, y</span>1<span>) and the other to be (x</span>2<span>, y</span>2).It doesn't matter which we choose, so let's take (15, 8) to be (x2, y2). Let's take the point (10, 7) to be the point (x1, y1).</span><span><span>Step Three:</span><span> Use the equation to calculate slope.</span>Once we've completed step 2, we are ready to calculate the slope using the equation for a slope:We said that it really doesn't matter which point we choose as (x1, y1) and the which to be (x2, y2). Let's show that this is true. Take the same two points (15, 8) and (10, 7), but this time we will calculate the slope using (15, 8) as (x1, y1) and (10, 7) as the point (x2, y2). Then substitute these into the equation for slope:We get the same answer as before!</span></span>

Often you will not be given the two points, but will need to identify two points from a graph. In this case the process is the same, the first step being to identify the points from the graph. Below is an example that begins with a graph.

Example

<span><span>What is the slope of the line given in the graph?
The slope of this line is 2.</span></span>

<span>
[detailed solution to example]</span>

Now, take a moment to compare the two lines which are on the same graph.

Notice that the line with the greater slope is the steeper of the two. The greater the slope, the steeper the line. Keep in mind, you can only make this comparison between lines on a graph if: (1) both lines are drawn on the same set of axes, or (2) lines are drawn on different graphs (i.e., using different sets of axes) where both graphs have the same scale.

5 0
3 years ago
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