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kompoz [17]
2 years ago
11

If you can mow 90 lawns in 45 hours, how long will it take to mow 12?

Mathematics
1 answer:
Alex777 [14]2 years ago
5 0
<h3>Answer:  6 hours</h3>

Work Shown:

(90 lawns)/(45 hours) = (12 lawns)/(x hours)

90/45 = 12/x

2 = 12/x

2x = 12

x = 12/2

x = 6

It takes 6 hours to mow 12 lawns.

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How can you find the slope of a line and use it to<br> solve problems?
ziro4ka [17]

Answer:

Step-by-step explanation:

1) Mark two points on the line in the graph.

2) Determine the rise and run. Rise ---> difference in y-coordinates. (y2-y1)

Run -----> difference in  x-coordinates (x2 - x1)

3) Plugin the values in the below mentioned formula.

Slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}

1.If slope = 0, then the line is parallel to x-axis.

2. If slope is undefined, then the line is parallel to y-axis.

3. If slope is +ve, then the line slant upwards and if slope = -ve, then the line slant downwards.

5 0
3 years ago
HELP PLEASEEEE. The question is attached. I would appreciate if someone could help me.
Blizzard [7]

a counterclockwise rotation about the origin of 90°

The coordinates of P(3, 3), Q(5, 3), R(5, 7)

The coordinates of P'(- 3, 3 ), Q'(- 3, 5), R'(- 7, 5)

Note that the y-coordinate of the image is the negative of the original, while the x-coordinate of the original becomes the y-coordinate of the image

The rotation which does this is a counterclockwise rotation about the origin of 90°

a point (x, y ) → (- y, x )


8 0
3 years ago
<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20-7x%2B8%5Cleq%205" id="TexFormula1" title="x^{2} -7x+8\leq 5" alt="x^{2} -7x+8\l
nikdorinn [45]

Answer:

x^2-7x+3=0

Step-by-step explanation:

5 0
3 years ago
7. The dimensions of a lawn shaped like a trapezoid are given in meters.
Veronika [31]

Answer:D:102

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Kiran and his cousin work during the summer for a landscaping company. Kiran's cousin has been working for the company longer, s
Marta_Voda [28]
Kiran earns $8.50 per hour.

Let x represent Kiran's pay.  He worked 23 hours last week, so his pay would be given by 23x.

Kiran's cousin is paid 30% more.  30% = 30/100 = 0.3.  We add this to the x per hour that Kiran is paid:

x + 0.3x = 1.3x

This is multiplied by 27, since Kiran's cousin works 27 hours:
27(1.3x)

This gives us the following equation:
23x + 27(1.3x) = 493.85
23x + 35.1x = 493.85
58.1x = 493.85

Divide both sides by 58.1:
58.1x/58.1 = 493.85/58.1
x = 8.5

Thus Kiran earns 8.50 per hour.
8 0
3 years ago
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