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Yuri [45]
3 years ago
6

I need 9 and 10 plzzz!!

Mathematics
1 answer:
Alex73 [517]3 years ago
6 0
Number of students N, y years

N = 700 + 50y   

N = 700 + 50 x 10 = 1200   (C)

Left not painted percentage = 100 - 60 = 40 %

Left = 40/100 x 45 =  18 (H)

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Given the width of the lawnmower is 5 feet and the
3241004551 [841]

Answer:

  R=0.39789 ft

Step-by-step explanation:

For the perfectly mowed lawn, after one revolution, you want the lawnmower to be exactly one lawnmower's width closer to the pole. This implies that one lawnmower width should wrap around the circumference of the pole every revolution. So for this lawnmower we want:

2πR=2.5

⇒R=2.5/2π

  R=0.39789 ft

8 0
3 years ago
Read 2 more answers
You can peel 48 potatoes in 10 minutes. How long will it take you to peel 100 potatoes?
dybincka [34]

Answer:

About 20.8 minutes

Step-by-step explanation:

TO solve this just think of it as a ratio. The number of potatoes goes on top and the time goes on bottom.

48

__

10

That is what the first one would look like. In the second one we know the number of potatoes but we are trying to find the time (x).

100

___

 x

Take these two ratios and set them equal to each other.

\frac{48}{10} =\frac{100}{x}      Next you cross multiply (take 48 times x and 100 times 10).

48x=1000    Now divide by 48 and you have your answer.

About 20.8 minutes

7 0
3 years ago
Write an equation of the line with the given slope and y intercept: m = 2, b = - 3/4​
Alex

Answer:

y = 2x - 3/4

Step-by-step explanation:

Adapt the slope-intercept form:  y = mx + b.

Making the indicated substitutions, we get

y = 2x - 3/4

4 0
3 years ago
a man bought a motor at 400,000 Kenyan shillings in January 1999 it depreciated at a rate of 16% per annum if he value it six mo
Alexxx [7]

The value of the car is January 2003 is  $199,148.54.

<h3>What is the value of the car?</h3>

Depreciation is the rate of decline in the value of an asset with the passage of time.

The exponential equation that can be used to determine the value of the car is:

Value of the car = purchase value(1 - rate of decline)^time

400,000 x (1 - 0.16)^(2003 - 1999)

400,000 x (0.84^4) = $199,148.54

To learn more about depreciation, please check: brainly.com/question/15085226

#SPJ1

8 0
1 year ago
Y = 7/8u + 9, solve for u
vivado [14]

Answer:

u=\frac{8y-72}{7}

Step-by-step explanation:

Flip the equation.

\frac{7}{8}u+9=y

Add -9 to both sides

\frac{7}{8}u+9(-9)=y(-9)

\frac{7}{8}u=y-9

Divide both sides by 7/8

u=\frac{8y-72}{7}

hope this helps

3 0
3 years ago
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