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navik [9.2K]
3 years ago
12

Refer to the chart, and then use the drop-down menu to complete each statement

Mathematics
2 answers:
Gwar [14]3 years ago
8 0
1. is increasing
2.40
3.40
i checked on edgeunity these are correct hope this helped.:) <span />
fredd [130]3 years ago
6 0

Answer:

is increasing

40

40

Step-by-step explanation:

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Toni rows a boat 4.5 km/h upstream and then turns around and rows 5.5 km/h back downstream to her starting point. If her total r
Masja [62]

Answer:

about 26 min

Step-by-step explanation:

Toni rows a boat 4.5 km/h upstream and then turns around and rows 5.5 km/h back downstream to her starting point

First we find the average speed

We add both speed and divide it by 2

\frac{4.5+5.5}{2} = 5

Now we find the distance for round trip

given total time is 48 mins. convert mins into hours

48 mins = 48 divide by 60 = 0.8

average speed = 5 km/hr

Distance = speed * time = 5 * 0.8 = 4 km

distance covered both ways = 4 km

so 4 divide by 2 = 2 km each way

To find time taken for upstream = distance of each way / speed of upstream

time = \frac{2}{4.5} = 0.44 hours

Now convert hours into minutes

0.44* 60= 26.4 minutes





3 0
3 years ago
The discount on a pack of socks is 15%. It is on sale for $17. What is the original price of the pack of socks?
Aneli [31]

Answer:

$19.55

Step-by-step explanation:

17*0.15=2.55

17+2.55=19.55

4 0
3 years ago
A scale on a map is 1mm: 50miles
mixer [17]
I don’t know what the question is, your just saying that
4 0
3 years ago
True or False, the following numbers are in order from greatest to least:<br> 11/10, 8/7,-2.34*
rjkz [21]

Answer:

fasle

Step-by-step explanation:

6 0
4 years ago
Solve this equation with substitution method :-<br> x+5 = 3 (y+5)<br> x-5 = 7 (y-5)
Damm [24]
From the first equation,
x+5 = 3(y+5)
x = 3y + 15 - 5
Now substitue x in the second equation with (3y +15 - 5).
x-5 = 7(y-5)
(3y+15-5) - 5 = 7(y-5)
3y +5 = 7y - 35
-4y = - 40
y = 10

Since y is 10, and x is (3y +15 - 5),
x = 30 + 15 - 5 = 40
5 0
3 years ago
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