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3 years ago

HELP FAST 5 POINTS AND A EXTRA 20 POINTS TO BRAINLIEST ANSWER

Mathematics

2 answers:

Zepler [3.9K]3 years ago

8 0

Alculate the total amount of the money he earns
12*1 = 12

Total amount of money - cost = profit
12 - 9.25 = 2.75

profit/cost * 100% = percentage profit
2.75/9.25 *100% =29.73%

correct to 2 significant figures
29.73 -> 30%

anyanavicka [17]3 years ago

5 0

Answer:

30%

Step-by-step explanation:

Profit = money made - cost

The money made was 12 bottles at 1 dollar each

Profit = 12*1 - 9.25

=12-9.25

= 2.75

Percent profit = profit/ cost * 100%

2.75/9.25 * 100%

.297297297*100%

29.7297297%

We need to round to the ones place for 2 significant figures

30%

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you work for a telecommunications company and need to analyze the outcome of a proposed new cell tower project. cell phone radio

umka21 [38]

Answer:

The equations describing the area which each tower covers are given as

Tower A : $x^{2} + y^{2} = 16$

Tower B : $(x - 5)^{2} + (y - 4)^{2} = 9$

Tower C : $(x - 4)^{2} + (y + 4)^{2} = 25$

Step-by-step solution:

Cell phone radio towers broadcast a cell phone signal in circular pattern

Tower A at Adele Acres have position co-ordinates as (0,0) and a coverage radius of 4 ml. So, the area which it covers is given by the equation,

$x^{2} + y^{2} = 16$ -------------------------------(1)

Tower B at Brown Lake have position co-ordinates as (5,4) and a coverage radius of 3 ml. So, the area which it covers is given by the equation,

$(x - 5)^{2} + (y - 4)^{2} = 9$ -------------------------------(2)

Tower C at Cady City have position co-ordinates as (4,-4) and a coverage radius of 5 ml. So, the area which it covers is given by the equation,

$(x - 4)^{2} + (y + 4)^{2} = 25$ -------------------------------(2)

4 0

2 years ago

PLEEEEASSEEEEE ITS URGENT

zavuch27 [327]

Answer:

Step-by-step explanation:

20 times pop. of Panama = 20×(4×10⁶) = 80×10⁶ = 8×10⁷

Population of Thailand = 7×10⁷ < 8×10⁷

pop of Thailand is less than 20 times pop of Panama.

8 0

2 years ago

Supposed eight out of every 20 students are absent from school lesson five days a year predict how many students would be absent

choli [55]

8 X
----- = ------
20 40000

40000/20=2000
2000*8=16000

X=16000

6 0

3 years ago

Juan is making t-shirts to sell at a concert.

o-na [289]

Answer:

7 shirts

Step-by-step explanation:

The function for producing shirts is

f($) = 50 + 7.5(x), where x is the number of shirt

The function for selling shirts is

f($) = 15(x)

For there to be a profit, he must make more money selling the shirts than he spent on making the shirts

Therefore, 15(x) > 50 + 7.5(x)

15x > 50 + 7.5x

15x - 7.5x > 50

7.5x > 50

x > 6.67 shirts

To make a profit, Juan must sell at least 7 shirts

7 0

2 years ago

Dots sells t-shirts ($2) and shorts ($4). In April total sales were $456. People bought 4 times as many t-shirts as shorts. How

Doss [256]

Answer:

Dots sold 152 t-shirts and 38 shorts sold.

Step-by-step explanation:

Let t = t-shirts and s = shorts.

We know that people bought 4 times as many t-shorts as shorts, which can be set to the equation t = 4s

Since t-shirts cost $2, shorts cost $4, and the total sales was $456, we can set the equation 2t +4s = 456

So our two equations are:

t = 4s

2t + 4s = 456

Substitute t from the 1st equation into the 2nd:

2(4s) + 4s = 456

8s + 4s = 456

12s = 456

s = 38

There were 38 shorts sold.

Since we have the number of shorts, we can plug that back into the 1st equation to find the number of t-shirts sold:

t = 4s

t = 4(38)

t = 152

There were 152 t-shirts sold.

4 0

3 years ago