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zaharov [31]
3 years ago
7

two groups collect litter along the side of the road. it takes each group 5 minutes to clean a 2 yd section. how long would it t

ake to clean up 2 miles
Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
4 0
Each group take 5 mins to do 2yds
2 groups so in 5 mins, 4 yards gets cleaned

how many yards per mile is 1760

2 miles=2*1760=3520

find how many times of the 5 mins they have to clean (remember 4 yds per 5 mins)
3520/4=880
that means 880 times 5mins=4400mins=73hrs and 20mins
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Arc AC would be 90 degrees because the line is bisects the straight line (180 Degrees)

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5. Write an equation for the linear<br> relationship shown below.
Neporo4naja [7]

Answer:

y=3×-11

Step-by-step explanation:

y=m+c

m=7-1÷6-4

m=6÷2

m=3

y=3+c

7=3(6)+c

7-18=c

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y=3×-11

6 0
2 years ago
Jessie is saving up for a purse that is $890. She gets $8 allowance per week, and already has $80 saved up. How long will it tak
LekaFEV [45]

Answer:

101.25 weeks

Step-by-step explanation:

890-80=810

810/8=101.25

8 0
3 years ago
The numbers of teams remaining in each round of a single-elimination tennis tournament represent a geometric sequence where an i
Anit [1.1K]

Answer:

a_n = 128\bigg(\dfrac{1}{2}\bigg)^{n-1}

Step-by-step explanation:

We are given the following in the question:

The numbers of teams remaining in each round follows a geometric sequence.

Let a be the first the of the geometric sequence and r be the common ration.

The n^{th} term of geometric sequence is given by:

a_n = ar^{n-1}

a_4 = 16 = ar^3\\a_6 = 4 = ar^5

Dividing the two equations, we get,

\dfrac{16}{4} = \dfrac{ar^3}{ar^5}\\\\4}=\dfrac{1}{r^2}\\\\\Rightarrow r^2 = \dfrac{1}{4}\\\Rightarrow r = \dfrac{1}{2}

the first term can be calculated as:

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a_n = 128\bigg(\dfrac{1}{2}\bigg)^{n-1}

4 0
3 years ago
Ft
Fofino [41]

Answer:

. We assume, that the number 260 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 260 is 100%, so we can write it down as 260=100%.

4. We know, that x is 6.75% of the output value, so we can write it down as x=6.75%.

5. Now we have two simple equations:

1) 260=100%

2) x=6.75%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

260/x=100%/6.75%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 6.75% of 260

260/x=100/6.75

(260/x)*x=(100/6.75)*x       - we multiply both sides of the equation by x

260=14.814814814815*x       - we divide both sides of the equation by (14.814814814815) to get x

260/14.814814814815=x

17.55=x

x=17.55

now we have:

6.75% of 260=17.55

Step-by-step explanation:

5 0
3 years ago
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