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grigory [225]
3 years ago
6

2/5 of 40 in fractional parts

Mathematics
2 answers:
Romashka [77]3 years ago
7 0
Dividing 40 into fifths...
40 ÷ 5 = 8

Since 1/5 of 40 is 8, 2/5 of 40 is <u>16</u>.
Sati [7]3 years ago
5 0
2 2
--- x 40 = ---- x 8 = 16
5 1
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Answer:

14 trees is less than 640 inches

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Please help I will mark as brianliest
shutvik [7]

Answer:

x = -4

Step-by-step explanation:

-5x-4x-2 = -8x+2 is the only one with a solution.

-5x-4x-2 = -8x+2

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8 0
2 years ago
A quantity b varies jointly with c and d and inversely with eWhen b is 18, c is 4, d is 9, and e is 6What is the constant of var
777dan777 [17]

Answer:

constant of variation = 3

Step-by-step explanation:

we know that b varies jointly with c and d

so:

b∝c∝d

and b varies inversely with e, so

b∝\frac{1}{e}

and i will call the constant of variation k, this way we can make an equation for b in the following form:

b=k\frac{cd}{e}

this satisfy that b varies jointly with c and d (if b increases, c and d also increase) and inversely with e (if b increases, e decreases)

we know that when b is 18, c is 4, d is 9, and e is 6:

b=18\\c=4\\d=9\\e=6

substituting this in our equation for b:

b=k\frac{cd}{e}\\ 18=k\frac{(4)(9)}{6}

and we solve operations and clear for the constant of variation k:

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4 0
3 years ago
Read 2 more answers
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olga_2 [115]

The average speed of Martha and Sarah is 32 km/h.

We need to know about the speed to solve this problem. Speed can be determined as the distance traveled divided by time. It can be written as

v = s / t

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From the question above, we know that:

t sarah = 3 hours

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v sarah = 40 km/h

By using the speed equation, we get the distance

vsarah = s / tsarah

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Find Martha's speed

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Find average speed

v = (vsarah + vmartha)/2

v = (40 + 24) / 2

v = 32 km/h

Hence, the average speed of Martha and Sarah is 32 km/h.

Find more on speed at: brainly.com/question/6504879

#SPJ4

5 0
1 year ago
Veronica bought 20 bags of candy for a school dance. The first 5 bags cost $1.79 each. The rest of the bags cost $1.19 each. How
scZoUnD [109]

Answer:

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4 0
2 years ago
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