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Lana71 [14]
3 years ago
9

Austin mowed 7 lawns in 4 hours at the rate how long will it take him to mow 21 lawns

Mathematics
1 answer:
photoshop1234 [79]3 years ago
3 0

7 lawns / 4 hours = 1.75 hours per lawn.

1.75 hours per lawn x 21 lawns = 36.75 hours total ( 36 hours and 45 minutes)

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2. H = 5 cm<br> W= 4 cm<br> L= 8 cm<br> V= L×W×H<br> =___×___×___<br> =______cm3​
hram777 [196]

Answer:

160cm^3

Step-by-step explanation:

5 x 4 x 8 = 160cm^3

6 0
3 years ago
Read 2 more answers
Which equation represents the line through (0,0) and (3,4)? a. y=3/4x b.y=4/3x c.y=4x d.y=3x
love history [14]

Answer:

b

Step-by-step explanation:

The equation of a line passing through the origin is

y = mx ( m is the slope )

Calculate m using the slope formula

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

with (x₁, y₁ ) = (0, 0 ) and (x₂, y₂ ) = (3, 4 )

m = \frac{4-0}{3-0} = \frac{4}{3}

y = \frac{4}{3} x → b

3 0
2 years ago
A national organization sets out to investigate the change in prevalence of HIV since the last census in 2010. A total of 4,706
nikitadnepr [17]

Answer:

As can be seen, there has been a rise in the proportion of the population with HIV positive, from 7.5% to 9.94%.

Step-by-step explanation:

Given that a national organization sets out to investigate the change in prevalence of HIV since the last census in 2010, ya total of 4,706 participants were interviewed and a total of 468 responses were confirmed to be HIV positive, assuming that the data from the census indicated that the prevalence of HIV in the particular population was 7.5%, to determine if the proportion of the prevalence of HIV has changed (is equal to 7.5%) the following calculation should be performed:

4706 = 100

468 = X

468 x 100/4706 = X

46,800 / 4,706 = X

9.94 = X

Therefore, as can be seen, there has been a rise in the proportion of the population with HIV positive, from 7.5% to 9.94%.

4 0
3 years ago
Pls owrk out the missing angle
Alik [6]

Answer:

125

Step-by-step explanation:

A full circle is 360°

80+85+70=235

360-235=125

4 0
3 years ago
Two buses departed simultaneously from the terminal. One travelled due south, and the other travelled due east at the rate of 2
Solnce55 [7]

Answer:

5km

Step-by-step explanation:

6 0
3 years ago
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