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frosja888 [35]
3 years ago
5

Melanie has a $60 so far to buy a lawn mower. This is 20% of the price of the lawn mower. What is the full price of the lawn mow

ers that she wants to buy?
Mathematics
1 answer:
andreev551 [17]3 years ago
4 0
--Percent means out of 100, so 20% = 20/100

The prob in other words is asking
  --  $60 is 20% of what number?

'$60'   --          --->  60
'is'       --          --->  =
20%    --         ---> 20/100
'of'     --            ---> * (multiply)
'what number'  ---> x  (variable)
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Use the four functions below for this question:
Darina [25.2K]
f (x ) = 2 x + 5
For g (x) we will solve the system:
- 1 =-2 m + b
+
-9 = 2 m + b
----------------------
-10 = 2 b,  b = -5
-9 = 2 m - 5
2 m = -4
m = -2
g ( x ) = - 2 x - 5
For h (X):
m = (-1-5 ) / ( 3-0 ) = -6/3 = -2
5 = 0 + b,   b = 5
h ( x) = - 2 x + 5.
Now we have 4 linear functions:
1 ) f ( x ) = 2 x + 5
The slope is m = 2, y - intercept: y = 5 , zero: x = -2.5 and the function increases ( m > 0 ).
2 ) g(x) = - 2 x - 5
The slope is m = - 2, y-intercept: y =-5 , zero: x = -2.5 and the function decreases ( m < 0 ).
3 ) h ( x ) = - 2 x + 5
The slope is m = - 2, y - intercept . y = 5, zero: x = 2.5 and the function decreases.
4 ) j (x) = 2 x + 5
The slope is m = 2, y -intercept: y = 5, zero: x = -2.5 and the function decreases.
The functions f( x ) and j ( x ) are parallel and also g( x ) and h ( x ). They have the same slope.  
The functions f ( x ) and j (x ) are increasing and h ( x ) and h ( x ) are decreasing.
6 0
4 years ago
Please Help!!!<br>What is the answer to this question???<br><br>​
PIT_PIT [208]

Answer:

22.85

Step-by-step explanation:

4 0
3 years ago
The heights of women aged 20 to 29 is approximately Normal with mean 64 inches and standard deviation 2.7 inches. What proportio
natima [27]
20. 64. 2.7
+29 +49 58.6
------ ------ ---------
49. 113 60 .3



49+60.3+113=21.5
4 0
3 years ago
The price of a gallon of milk follows a normal distribution with a mean of $3.20 and a standard deviation of $0.10. What proport
Inga [223]

Answer:

P(x

Step-by-step explanation:

Mean \=x=\$3.20

Standard deviation \sigma =\$0.10

Estimated price y=\$3.12

Generally the equation for P(x<3.12) is mathematically given by

 P(x

 P(x

Since from Z table

 P(x

Therefore the  proportion of the milk vendors that have prices that were less than $3.12 per gallon is

 P(x

6 0
3 years ago
Need help on this problem
Sindrei [870]

Answer:

Part A ) Equation represents a Linear Function.

Part B )

Slope = \frac{9}{5}\\y-intercept\\F=32

Step-by-step explanation:

Temperature in degrees ( C ) and Fahrenheit ( F ) relation is given as

F=\frac{9}{5}\times C + 32

Part A:

Linear function:

Linear functions are those whose graph is a straight line.

A linear function has the following form. y = f(x) = a + bx.

A linear function has one independent variable and one dependent variable.

The independent variable is x and the dependent variable is y.

Now,

∴ F=\frac{9}{5}\times C + 32  is a linear function as C independent variable and capital F as dependent variable.

Part B:

y = mx + c\\

represent a straight line having

slope = m

y - intercept = c

So, on comparing the given degrees and Fahrenheit relation equation F=\frac{9}{5}\times C + 32    we will get

Slope = \frac{9}{5}\\y-intercept\\F=32

3 0
3 years ago
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