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Jlenok [28]
3 years ago
5

Please solve: 8n+2≤8n−9! Show your work please!

Mathematics
1 answer:
Wittaler [7]3 years ago
4 0
This doesn’t make any sense, because 8n-8n<=-9-2
Which means 0<=-11 which doesn’t make sense, therefore this there are no solutions for this inequality.
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42=-2d+6 I need help
sineoko [7]
<span>42=-2d+6

Here, to find d, you need to separate it on one side.
First, subtract 6 from both sides.

42-6 = -2d + 6 - 6
36 = -2d

Now divide both sides by -2.

36/-2 = -2/-2d
-18 = d

The answer to this problem is -18, or d = -18.</span>
5 0
3 years ago
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broderick had 420 dollars in his checking account he made 6 deposits of 35.50 each.He needs to write 4 checks for 310.75 each.Wh
kotykmax [81]
Q.q i dunno , seems like he doesnt have enough money with the 6 deposites of 35.5 = 213 if you add the deposists to 420+213=633 , and he needs 4 checks of 310 eaach , he could only write 2 checks , so i suppose theirs not enough information to  accumulate a answer 
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3 years ago
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Help me plz
ololo11 [35]

Answer:

\left\{\begin{array}{l}y\le 4x\\y\ge 50\\25x+15y\ge 1975\end{array}\right.

Step-by-step explanation:

Let  x represent the number of lawns mowed and y represent the number of cars washed.

1. Since the number of cars that Beth wash is no more than four times the number of lawns Mike has scheduled to mow, you have that y\le 4x..

2. Beth will wash at least 50 cars, then y\ge 50.

3. Mike charges $25 each time he mows a yard, then he earns $25x for mowing x yards. Beth charges $15 for each car she washes, then she earns $15y for y cars washed. They need at least $1975, so

25x+15y\ge 1975.

4. A set of constraints to model the problem is

\left\{\begin{array}{l}y\le 4x\\y\ge 50\\25x+15y\ge 1975\end{array}\right.

4 0
2 years ago
write the slope intercept form of the equation of the line with a slope of -2/5 that passes through 15, -9/2​
Sever21 [200]

Answer:

The equation of line in slop-intercept form  is y = \dfrac{-2x}{5} + \dfrac{3}{2}

Step-by-step explanation:

Given as :

The slope of the a line = m = \dfrac{-2}{5}

The line is passes through points x_1 , y_1 = 15 , \dfrac{- 9}{2}

<u>According to question</u>

Equation of line in slope - intercept form

y - y_1 = m × ( x - x_1 )

Or, y - (\dfrac{- 9}{2} ) =  \dfrac{-2}{5} × ( x - 15 )

Or, y  - (\dfrac{- 9}{2} ) =  \dfrac{-2}{5} ×  x  - ( \dfrac{-2}{5} ) × 15

Or, y  - (\dfrac{- 9}{2} ) =  \dfrac{-2}{5} ×  x  + 6

Or, y =   \dfrac{-2}{5} ×  x  + 6 - \dfrac{9}{2}

Or, y =   \dfrac{-2}{5} ×  x  + \dfrac{12-9}{2}

Or, y = \dfrac{-2}{5} ×  x + \dfrac{3}{2}

So, The equation of line in slop-intercept form  y = \dfrac{-2}{5} ×  x + \dfrac{3}{2}

Hence, The equation of line in slop-intercept form  is y = \dfrac{-2x}{5} + \dfrac{3}{2}  Answer

6 0
3 years ago
The following graph is a linear function comparing the inches of snowfall to hours of time in a specific location.
Maurinko [17]

Answer:

Step-by-step explanation:

Domain of a function is given by the set of x-values (Input values) on the graph.

Range of a function is given by the set of y-values (output values) on the graph.

From the graph attached,

Set of time will represent the "domain" and set of snowfall will represent the "range" of the function graphed.

a). Domain of the function: 0 ≤ x ≤ 5

b). Range of the function: 0 ≤ y ≤ 10

3 0
3 years ago
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