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Dvinal [7]
3 years ago
11

Kevin has mowed 40% of the lawn. If he has been mowing for 20 minutes, how long will it take him to mow the rest of the grass?

Mathematics
1 answer:
Katen [24]3 years ago
3 0
It will take 30 minutes more for remaining grass. As he mowed 40% in 20 minutes, it shows that he mows twice percentage of grass in the time calculated in minutes. So it will take 30 minutes for remaining 60% grass.
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Which exponential equation is equivalent to the logarithmic equation below? c = ln 2
ololo11 [35]
1. To solve this problem, you need to remember that an exponential function has the following form:

 f(x)=a^x

 "a" is the base and "x" is the exponent.

 2. It is important to know that the logarithmic functions  and the exponential functions are inverse. Then, you have:

 c=ln2
 e^c=e^(ln2)
 e^c=2

 3. Therefore, the answer is:

 e^c=2
5 0
2 years ago
Read 2 more answers
Solve the following system.<br> x^2 + y^2 = 25<br> 2x + y = 10<br> The solution set
tia_tia [17]
\begin{cases} x^{2}+y^{2}=25 \\ 2x+y=10 \end{cases} \\  \\ \begin{cases} x^{2}+y^{2}=25 \\ y=10 -2x\end{cases} \\  \\ \begin{cases} x^{2}+(10-2x)^{2}=25 \\y=10-2x \end{cases} \\  \\ \begin{cases} x^{2}+100-40x+4x^{2}=25 \\y=10-2x \end{cases} \\  \\ \begin{cases} 5x^{2}-40x+75=0 \\y=10-2x \end{cases}

\begin{cases} x^{2}-8x+15=0 \\y=10-2x \end{cases} \\  \\  \begin{cases} \Delta=(-8)^{2}-4*1*15=64-60=4; \ \ \  \sqrt{\Delta} =2 \\y=10-2x \end{cases} \\  \\  \begin{cases} x_{1}= \frac{8-2}{2} =3 \ \wedge \ x_{2}= \frac{8+2}{2}=5  \\y=10-2*3=4 \ \wedge \ y=10-2*5=0 \end{cases}
4 0
2 years ago
Determine the measures of the angles of MNO if the measures of the angles are in the ratio 2:4:6
saul85 [17]
2:4:6 =2x :4x :6x
2x -1st angle
4x -2d one
6x - 3d one
2x+4x+6x=180 because MNO is a triangle
12x=180
x=180/12=15

2*15=30° -1st angle
4*15= 60° -2d one
6*15=90° - 3d one


4 0
3 years ago
M∠LON = 7x-92 and m∠MON = 6x+12
Tomtit [17]

Answer:

M∠LOM  =  \boxed{48}

Step-by-step explanation:

M∠LOM + m∠MON = 180 \\ 7x-92   + 6x+12 = 180 \\ 13x - 80 = 180 \\ 13x = 180  + 80 \\ 13x = 260 \\ \boxed{ x = 20} \\ (7x - 92 )= 140 - 92 =  \boxed{48} \\

5 0
2 years ago
4) Which number is a factor<br> of 12, but not a multiple<br> of 3?
sesenic [268]

Answer:

the answer is 4

thats it pls

6 0
2 years ago
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