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mezya [45]
3 years ago
9

Alisa hopes to play beach volleyball in the olympics someday. She has convinced her parents to allow her to set up a beach volle

yball court in their backyard. A standard volleyball court is 26 feet by 52 feet. She figures she will need the sand to be one foot deep.
Sand a is 60 lbs for $5
Sand b is 150 lbs for $12

A. What's is the rate brand a is selling for? Give rate and then specify the unit rate.

B.Which brand is offering the better value? Explain.
Mathematics
1 answer:
Norma-Jean [14]3 years ago
7 0
In each case, divide the cost by the weight to find the cost per pound.
The unit rate is dollars per pound.

Sand a: $5/(60 lb) = 0.08333 $/lb
Sand b: $12/(150 lb) = 0.08 $/lb

A. Sand a is 0.08333 $/lb

B. Sand b is $0.08 $/lb

Sand b has a lower unit rate.
Sand b is is the better value.
If you buy the same amount of sand a and sand b, you will spend less money per pound of sand by buying sand b.
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Once again due 11:59 pls help
vovikov84 [41]

Answer:

In the equation, it divides 21 by x before knowing what x is, and gets it incorrect. Instead, you need to divide 21 by -4.2.

Step-by-step explanation:

-4.2x = 21

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x = -5

8 0
3 years ago
Please please help me
OLga [1]

Answer:

(x - 5)² + (y + 3)² = 16

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

here (h, k) = (5, - 3) and r = 4, thus

(x - 5)² + (y - (- 3))² = 4², that is

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4 0
3 years ago
How do you round the area of a circle with 3.14?
kirill115 [55]

Answer:

(This is a example since you don’t have anything to round to)

Example Answer if the radius is 4 - 50.24

Step-by-step explanation:

Example Radius : 4

Area : 3.14

We have the mulitiply 3.14 times The Example Radius 2 times because The diameter of a circle is 2 times its radius.

( 3.14 x 4 x 4) 50.24

If you know the diameter, it’s a half or 1/2 as large.

Therefore, if the radius was 4, it would be 50.24.

Youre welcome :)

7 0
3 years ago
If a kid was playing for 4 hours and he did 9 activitys how much time did each activity take
nadezda [96]

Answer:

26.6667 minutes or 0.444 hours per activity.

Step-by-step explanation:

If he spent an equal amount of time on each activity, then it would have to be divided equally: 4hours/9

In minutes:

4 x 60 = 240 minutes

240/9

26.6667 minutes per activity.

In Hours:

4/9

0.444 hours per activity.

3 0
3 years ago
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Answer:

2869.25

Step-by-step explanation:

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